Journal articles: 'Servomotor'

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Abdul Ali, Abdul Wali, Fatin Asmida Abdul Razak, and Nasri Hayima. "A Review on The AC Servo Motor Control Systems." ELEKTRIKA- Journal of Electrical Engineering 19, no. 2 (August 29, 2020): 22–39. http://dx.doi.org/10.11113/elektrika.v19n2.214.

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AC Servomotors are widely used in the industries for the control of static and dynamic loads. Precise control of position, speed, and torque are the main issues with the AC Servomotor. AC Servomotors are highly demanded by the industries to have a precise response under dynamic load conditions. Many control techniques are commercially available for the control of AC Servomotor under static and dynamic load conditions. However, all of these control techniques have advantages and limitations. Many investigations are done on the control of AC Servomotor, but comprehensive surveys on the control of AC Servomotor were still limited. In this paper, most of such commercially available control techniques are investigated, discussed, and compared.

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Nicolescu, Florin Adrian, Georgia Cezara Avram, Andrei Mario Ivan, and Adrian Theodor Mantea. "Brushless Servomotor’s Thermal Behavior Computer Assisted Evaluation for a Linear Motion NC Axis Experimental Stand." Applied Mechanics and Materials 762 (May 2015): 21–26. http://dx.doi.org/10.4028/www.scientific.net/amm.762.21.

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The paper presents works carried out by the authors in the field of NC axes’ structural and functional optimization. This paper includes the results obtained by using a MathCAD application (developed in the doctoral thesis of the second author) for the servomotor's thermal behavior computer assisted evaluation. The analyzed servomotor is included in the driving system of a linear motion NC axis experimental testing stand, (existing in MMS department from EMTS Faculty). The NC axis of the experimental stand integrates a FAGOR brushless servomotor, a 1:1 ratio belt drive intermediary transmission, a ball screw - bearings assembly (lead screw - ball nut - bearings) and a driven element guided through a ball rail system. The MathCAD application was developed in order to perform specific calculation for servomotor's thermal energy dissipation and maximum operating temperature evaluation, and allows to perform the assisted final check and optimum selection of the electrical driving servomotors based on these results. The paper presents, through some screenshots from running the MathCAD application, the computer assisted evaluation procedure and results of the brushless servomotor's thermal behavior analysis corresponding to analyzed NC axis (included in the experimental stand).

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Yan, Guishan, Zhenlin Jin, Tiangui Zhang, and Penghui Zhao. "Position Control Study on Pump-Controlled Servomotor for Steam Control Valve." Processes 9, no. 2 (January 25, 2021): 221. http://dx.doi.org/10.3390/pr9020221.

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In steam turbine control and actuation, the steam control valve plays a key role in operability and reliability. The electrohydraulic regulating system for the steam control valve, usually called the servomotor, needs to be reliable and high performing under nonlinear excitation interference in actual conditions. Currently, electrohydraulic servo valve control technology is widely used in servomotors. Although this technology has good control performance, it still has some technical defects, such as poor antipollution ability, low energy efficiency, large volume size, and limited installation space. Aiming at the abovementioned technical shortcomings of electrohydraulic servo valve control technology, a servomotor-pump-hydraulic cylinder volume control scheme is proposed in this paper, forming a pump-controlled servomotor for the steam control valve. By analyzing the working principle of the pump-controlled servomotor position control in the steam control valve, the mathematical model of a pump-controlled servomotor for the steam control valve is established. The sliding mode variable structure control strategy is proposed, and the variable structure control law is solved by constructing a switching function. To verify the performance of the proposed control method, experimental research was conducted. The research results show that the proposed sliding mode variable structure control strategy has a good control effect, which lays the theoretical and technical foundation for the engineering application and promotion of pump-controlled servomotors for steam control valves and helps the technical upgrade and product optimization of steam turbines.

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Zandoná, Vitor Caetano Almeida, Sergio Deitos Bittencourt, Moisés De Mattos Dias, Monir Goethel Borba, Eduardo Luis Schneider, José Carlos Krause de Verney, José Lesina Cézar, Luiz Carlos Gertz, and Lirio Schaeffe. "ESTUDO DE MATERIAIS MAGNÉTICOS MACIOS SINTERIZADOS PARA APLICAÇÃO EM SERVOMOTORES." Revista Tecnologia e Tendências 11, no. 1 (September 15, 2020): 170. http://dx.doi.org/10.25112/rtt.v11i1.2297.

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Resumo Este trabalho teve por objetivo o estudo de ligas sinterizadas a partir de Fe puro, FeP, FeSi e FeNi obtidas a partir do processo da Metalurgia do Pó e sua aplicação em núcleos de rotor e estator de servomotores, operando com corrente elétrica de armadura de alta freqüência, reduzindo assim, nestas frequências, as correntes parasitas, as quais causam perda de potência nestas máquinas. O estudo compreendeu obtenção de curvas de histerese destas diversas ligas, ensaios para avaliação de perdas elétricas e simulação em software de elementos finitos para obtenção de fluxo de entreferro e conjugado eletromagnético (torque). Os estudos teóricos e simulações foram realizados em um servomotor de topologia convencional e os testes foram realizados comparativamente a servomotores com núcleos obtidos a partir de chapas de aço laminadas. Nas simulações realizadas estaticamente, o torque instantâneo e o fluxo magnético no núcleo de Fe1%P resultaram valores próximos em relação às tradicionais chapas de aço laminadas. O núcleo de Fe1%P apresentou torque instantâneo de 1,59 N.m e fluxo magnético de 1,70 T e o núcleo de chapas de aço laminadas, respectivamente, 1,65 N.m e 1,66 T.Palavras-chave: Metalurgia do Pó. Servomotores. Simulação por elementos finitos. ABSTRACT This work aimed to study sintered alloys from pure Fe, FeP, FeSi and FeNi obtained by Powder Metallurgy process, and its application in rotor and stator cores of servomotors, operating with armature electric current in high frequency, thus reducing, in these frequencies, eddy currents, which cause loss of power in these machines. The study comprised obtaining hysteresis curves from these different alloys, tests to evaluate electrical losses and simulation in finite element software to obtain airflow and electromagnetic conjugate (torque). Theoretical studies and simulations were performed on a conventional topology of servomotor, and the tests were carried out comparatively to servomotors with cores obtained from rolled steel sheets. In the simulations performed statically, the instantaneous torque and the magnetic flux in the Fe1%P core resulted close values in relation to the traditional laminated steel sheets. The Fe1%P core had an instantaneous torque of 1.59 N.m and a magnetic flux of 1.70 T and the core of rolled steel sheets, respectively, 1.65 N.m and 1.66 T.Keywords: Powder Metallurgy. Servomotors. Finite Element Simulation.

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Avram, Georgia Cezara, Florin Adrian Nicolescu, Radu Constantin Parpală, and Constantin Dumitrascu. "Experimental Research to Evaluate Thermal Behavior of a Brushless Driving Servomotor for Linear Motion NC Axis Experimental Stand." Applied Mechanics and Materials 762 (May 2015): 55–60. http://dx.doi.org/10.4028/www.scientific.net/amm.762.55.

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This paper presents the works carried out by the authors in the field of structural and functional optimization of industrial robot's numerically controlled (NC) axes. The study includes the results obtained in the research stage of the experimental measurements performed to evaluate the electrical servomotor's thermal behavior using a thermal (infrared) imaging camera. The analyzed servomotor is a brushless servomotor integrated in an experimental stand for linear motion NC axis experimental research, existing in the MMS department from EMTS faculty. Supplementary to the driving servomotor, the experimental stand includes a belt drive transmission, a ball screw - bearings assembly and a driven element guided by ball rail system. This experimental research phase is part of the doctoral thesis of first author and was conducted in order to validate the mathematical models developed in the PhD thesis. Thus, experimental results presented in the paper have been used to validate first mathematical models for electric motor's preliminary selection and checking, (performed by determining the total reflected inertia of the mechanical system on motor shaft level) as well as the mathematical models for final selection and checking (by evaluating the servomotor's thermal energy dissipation, and servomotor's internal and external maximum operating temperature). Second, the experimental results have been used to validate the assisted simulation for structural and functional optimization of industrial robot's NC axes based on both servomotor and drive's thermal behavior analysis, performed in the thesis by means of a dedicated commercial software package.

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Morales, Olga J., Rubén Garrido, and J. Maldonado. "Evaluación de un controlador adaptable por modelo de referencia mediante servomotores de CD de bajo costo." Memorias del Congreso Nacional de Control Automático 5, no. 1 (October 17, 2022): 169–74. http://dx.doi.org/10.58571/cnca.amca.2022.026.

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En este trabajo se presenta la evaluación de una ley de Control Adaptable Directo por Modelo de Referencia mediante tres servomotores de CD de bajo costo, los cuales pueden servir como actuadores en plataformas de enseñanza. Uno de los servomotores corresponde a la marca LEGO, modelo NXT, un segundo servomotor es de la marca MakeBlock y un tercero corresponde a un Servomotor Analógico de Radio Control (SARC) genérico. Se describen sus características técnicas, así como también su desempeño experimental cuando se implementa una ley de control en posición basada en un controlador Adaptable Directo por Modelo de Referencia. Los resultados obtenidos muestran que es posible utilizar algoritmos de control avanzados empleando servomotores de CD de bajo costo obteniéndose un desempeño adecuado.

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Peng, William Z., Hyunjong Song, Dariusz Czarkowski, and Joo H. Kim. "Switched electromechanical dynamics for transient phase control of brushed DC servomotor." Chaos: An Interdisciplinary Journal of Nonlinear Science 32, no. 12 (December 2022): 123119. http://dx.doi.org/10.1063/5.0101432.

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Robotic tasks often exceed the scope of steady-state or periodic behavior, which necessitates generally-applicable models of actuators intended to generate transient or aperiodic motion. However, existing electromechanical models of servomotors typically omit consideration of the switching power converter circuits required for directional, speed, or torque control. In this study, a multi-domain framework is established for switched electromechanical dynamics in servomotor systems for their analysis and control in general aperiodic tasks including transient phases. The switched electromechanical dynamics is derived from the individual models of the internal DC motor, gear train, and H-bridge circuit. The coupled models comprehensively integrate all possible distinct switching configurations of on-state, off-state, and dead time. A combination of cycle averaging with piecewise analytical solutions of the non-smooth dynamics is introduced to handle different temporal scales from high-frequency electrical to low-frequency mechanical variables. System parameters were estimated from experimental data using a dual-servomotor test platform. The model was validated for predictive accuracy against measured data in two distinct tasks—dynamic braking of a pendulum system and sinusoidal trajectory following. The model was also used to formulate the servomotor power consumption, which was implemented for optimal control demonstration and energy analysis. In particular, the servomotor power consumption model provided true optimality (minimization) when compared with the squared rotor torque and the positive rotor mechanical power that are commonly used as proxy models. While the focus of this work is on permanent-magnet, armature-controlled brushed DC servomotors, the approach is applicable to general electromechanical systems with switching-based control.

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Jing, Sun, and Yao Yan-An. "AN INDEPENDENT ACTIVE TORQUE BALANCER USING A SERVO-CONTROLLED DIFFERENTIAL GEAR TRAIN." Transactions of the Canadian Society for Mechanical Engineering 33, no. 2 (June 2009): 329–48. http://dx.doi.org/10.1139/tcsme-2009-0024.

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This paper proposes a novel concept of active balancer for reducing the input torque fluctuations of mechanisms. A differential gear train is used in this active balancer and one of its two input shafts is driven and controlled by a servomotor. From the structural point of view, it is designed as an independent device that can be assembled and disassembled easily; from the functional point of view, it can minimize the torque fluctuations in a variety of working conditions. At first, an exact control function of the servomotor that can totally eliminate the input torque fluctuations of the mechanism is gained by an analytical method; in what follows, an optimization approach is developed to select appropriate control functions for the servomotor to balance the input torque of the working mechanism with consideration of the servomotor’s own input torque minimization; finally, an integrated method is presented for optimizing both the control function of the servomotor and the structure parameters of the differential gear train. Two numerical examples are given to illustrate the design procedure and to show its feasibility.

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Dirba, J., L. Lavrinovicha, and R. Dobriyan. "Features of Synchronous Electronically Commutated Motors in Servomotor Operation Modes." Latvian Journal of Physics and Technical Sciences 54, no. 2 (April 1, 2017): 14–23. http://dx.doi.org/10.1515/lpts-2017-0009.

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Abstract The authors consider the features and operation specifics of the synchronous permanent magnet motors and the synchronous reluctance motors with electronic commutation in servomotor operation modes. Calculation results show that mechanical and control characteristics of studied motors are close to a linear shape. The studied motor control is proposed to implement similar to phase control of induction servomotor; it means that angle θ (angle between vectors of the supply voltage and non-load electromotive force) or angle ε (angle between rotor direct axis and armature magnetomotive force axis) is changed. The analysis results show that synchronous electronically commutated motors could be used as servomotors.

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Nichols, Charles. "The vBow: a virtual violin bow controller for mapping gesture to synthesis with haptic feedback." Organised Sound 7, no. 2 (August 2002): 215–20. http://dx.doi.org/10.1017/s135577180200211x.

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The vBow, a virtual violin bow musical controller, has been designed to provide the computer musician with most of the gestural freedom of a bow on a violin string. Four cable and servomotor systems allow for four degrees of freedom, including the lateral motion of a bow stroke across a string, the rotational motion of a bow crossing strings, the vertical motion of a bow approaching and pushing into a string, and the longitudinal motion of a bow travelling along the length of a string. Encoders, attached to the shaft of the servomotors, sense the gesture of the performer, through the rotation of the servomotor shafts, turned by the motion of the cables. The data from each encoder is mapped to a parameter in synthesis software of a bowed-string physical model. The software also sends control voltages to the servomotors, engaging them and the cables attached to them with a haptic feedback simulation of friction, vibration, detents and elasticity.

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Gao, Xiao Ding, Zhao Ming Nie, Yuan Chao Li, and Jia Jia Wang. "The Multiple AC Servomotors’ Synchronous Operation Control System Based on DSP and FPGA." Advanced Materials Research 490-495 (March 2012): 1650–54. http://dx.doi.org/10.4028/www.scientific.net/amr.490-495.1650.

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The multi AC servomotor synchronous operation control system based on DSP+FPGA and a new intelligent PI controller have been designed. The intelligent PI controller can change the structure of controller and parameters dynamically according to the running status of the system, which improves the dynamic performance of the speed control system. In terms of the condition without loading, the experiments about four AC servomotors in different revolving speed have been implemented and The results of experiments show that the system can achieve the high precision control of the operation of multiple AC servomotors synchronously.

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Burgert, Michael. "Definition Servomotor." Konstruktion 69, S2 (2017): 8–9. http://dx.doi.org/10.37544/0720-5953-2017-s2-8.

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Shamsudin, Hasrul Che, Mohammad Afif Ayob, Wan Nurshazwani Wan Zakaria, and Mohamad Fauzi Zakaria. "Modeling and Simulation for One Leg of Quadruped Robot Trajectory." Applied Mechanics and Materials 826 (February 2016): 140–45. http://dx.doi.org/10.4028/www.scientific.net/amm.826.140.

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In legged robot movement planning, the leg must be carefully design before trajectory analysis can be done. The objective of this paper is to develop a 3 DOF leg which will be used in quadruped robot. In addition, forward kinematic and comparison between real and simulation of the leg is presented. To achieve the objective, SolidWorks 2013 x64 Edition is used to develop the 3D modeling of the leg while SimMechanics with First Generation Format was applied to export the models to Simulink. For the comparison purposes, real model of 3 DOF leg with Arduino Pro Mini 328 - 5V/16MHz as a microcontroller to control the rotation of three servomotors was constructed. With MIT AI2 Companion software, android apps is developed to send signal to rotate each servomotor wirelessly. The zero position of the leg robot has been determined and the maximum rotation range of each servomotor. This is very important in determination of D-H Parameters which allow the resolving of kinematics problems. It is found that specific rotations of each servomotor provide the trajectory pattern of the leg which is compared through Simulink and real model. Nevertheless, there are errors between simulation and real position of the robot leg due to the open loop system.

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Ma, Hong Wen, L. Q. Wang, D. L. Chen, X. W. Hao, and H. W. Luo. "Design of a Crab-Like Octopod Robot." Applied Mechanics and Materials 10-12 (December 2007): 263–66. http://dx.doi.org/10.4028/www.scientific.net/amm.10-12.263.

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A crab-like octopod robot is introduced in this paper. The body structure of the robot is simuliar with a real crab. Each leg has three jionts which are driven by servomotors. The control system is a distributed hierarchical system with a top layer as gait generator and a bottom layer as servomotor controller. The bottom layer has enght individual control units every of which can control three servomotors using PID control method. The sensor systerm is composed of force sensors mounted at the end of the leg and a inclinometer provides pitch and roll angles of the body.

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Momose, N., and Y. Tomizawa. "Incident-simulating device with wireless control for extracorporeal circulation crisis management drills." Perfusion 23, no. 1 (January 2008): 17–21. http://dx.doi.org/10.1177/0267659108093874.

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Incidents during extracorporeal circulation (ECC) may lead to serious consequences, and troubleshooting exercises are becoming more important. We developed an incident-simulation device operated by remote control for ECC crisis management drills, and evaluated its efficacy at a seminar for perfusionists. This compact device consists of a transmitter and a receiving system and is run by dry batteries without a personal computer. A 4-channel radio-control system is used as the transmitter, and four servomotors placed in a box as the receiving system. To simulate occlusion of 3/8” arterial and venous lines, two servomotors with a rod rotate and the rod compresses the tube. The tilt angle of the stick and the servomotor rotation are in proportion, so that the degree of occlusion is controlled. As a result, the tube lumen becomes “stenotic” and then occluded, depending on the rotation. To cut off the power, the other two servomotors, with a relay system, work as a breaker. When the rod of the servomotor rotates, a micro-switch is turned off. The present device is able to increase perfusion pressure quickly and to simulate inadequate venous drainage quietly. At a seminar for perfusionists, an instructor manipulated the transmitter to create incidents and the participants handled the events effectively. In conclusion, incidents created by this device were perceived as similar to real ECC crises and this device may be useful and educationally effective when used in crisis management drills for perfusionists and trainees.

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Lee, Fu-Shin, Chen-I. Lin, Zhi-Yu Chen, and Ru-Xiao Yang. "Development of a control architecture for a parallel three-axis robotic arm mechanism using CANopen communication protocol." Concurrent Engineering 29, no. 3 (April 1, 2021): 197–207. http://dx.doi.org/10.1177/1063293x211001956.

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Based upon the CANopen communication protocol and the LabVIEW graphic programing procedures, this paper develops a closed-loop control architecture for a parallel three-axis (Delta) robotic arm mechanism. The accomplishments include prototyping a parallel three-axis robotic arm mechanism, assembling servomotors with associated encoders and gearsets, coding CANopen communication scripts for servomotor controllers and a host supervision GUI, coding forward/inverse kinematics scripts to compute the required servomotor rotations and the coordinates of a movable platform or the mechanism, coding tracking error compensation scripts for effective closed-loop griper control, and coding integration scripts to command and supervise the mechanism motion on the LabVIEW-based host GUI. During the development stage, this research designed and prototyped the parallel three-axis robotic arm mechanism based upon basic Delta robot kinematics. To control the mechanism effectively and accurately, this study implemented the CANopen communication protocol, which characterizes high speed and stable transmission. The protocol applies to the CANopen communication channels among the controllers and the host supervision GUI. On the LabVIEW development platform, the coded supervision GUI performs issuing/receiving messages to the CANopen-based controllers. The controllers excite the servomotors and actuate the parallel mechanism to track prescribed trajectories in a closed-loop control fashion. Meanwhile, an electromagnet attached to the movable platform of the robotic mechanism performs satisfactory picking/placing object actions.

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Dondon, Philippe, and C. A. Bulucea. "An Enhanced Spice and 3D Modelling for Standard Servomotors." WSEAS TRANSACTIONS ON ELECTRONICS 12 (March 4, 2021): 9–18. http://dx.doi.org/10.37394/232017.2021.12.2.

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Servomotors are widely used and well known by hobbyists for control of small scale radio controlled boats, cars or planes. The control is done using a simple PWM signal modulation, easily compatible with a 2 or 4 channels remote control system. As hobbyists are generally simple users, a light knowledge is generally enough to drive this kind of motor. However, in some electronic applications, we need deeper information on servomotors behaviour. Unfortunately, servo manufacturers never give detailed datasheet and no information is available on various WEB sites. Thus, we present in this paper, a SPICE modelling for hobbyist servomotor. Simulation and practical experimentations are done to validate the modelling. Finally, an additional lively 3D modelling is proposed and a concrete didactical application is described before conclusion

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Singh, Ravinder, Archana Khurana, and Sunil Kumar. "Optimized 3D laser point cloud reconstruction by gradient descent technique." Industrial Robot: the international journal of robotics research and application 47, no. 3 (February 15, 2020): 409–21. http://dx.doi.org/10.1108/ir-12-2019-0244.

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Purpose This study aims to develop an optimized 3D laser point reconstruction using Descent Gradient algorithm. Precise and accurate reconstruction of 3D laser point cloud of the complex environment/object is a key solution for many industries such as construction, gaming, automobiles, aerial navigation, architecture and automation. A 2D laser scanner along with a servo motor/pan tilt/inertial measurement unit is used for generating 3D point cloud (either environment/object or both) by acquiring the real-time data from sensors. However, while generating the 3D laser point cloud, various problems related to time synchronization problem between laser and servomotor and torque variation in servomotors arise, which causes misalignment in stacking the 2D laser scan for generating the 3D point cloud of the environment. Because of the misalignment in stacking, the 2D laser scan corresponding to the erroneous angular and position information by the servomotor and the 3D laser point cloud become distorted in terms of inconsistency for measuring the dimension of the objects. Design/methodology/approach This paper addresses a modified 3D laser system assembled from a 2D laser scanner coupled with a servomotor (dynamixel motor) for developing an efficient 3D laser point cloud with the implementation of an optimization technique: descent gradient filter (DGT). The proposed approach reduces the cost function (error) in the angular and position coordinates of the servo motor caused because of torque variation and time synchronization, which resulted in enhancing the accuracy in 3D point cloud mapping for the accurate measurement of the object’s dimensions. Findings Various real-world experiments are performed with the proposed DGT filter linked with laser scanner and servomotor and an improvement of 6.5 per cent in measuring the accurate dimension of object is obtained while comparing with conventional approaches for generating a 3D laser point cloud. Originality/value This proposed technique may be applicable for various industrial applications that are based on robotics arms (such as painting, welding and cutting) in the automobile industry, the optimized measurement of object, efficient mobile robot navigation, precise 3D reconstruction of environment/object in construction, architecture applications, airborne applications and aerial navigation.

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Beck, Tilmann, Bernhard Denne, Karl-Heinz Lang, and Detlef Löhe. "Torsionsermüdungsprüfmaschine mit AC-Servomotor." Materials Testing 43, no. 7-8 (July 1, 2001): 283–87. http://dx.doi.org/10.1515/mt-2001-437-806.

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Diop, A. D., C. Nichita, J. J. Belhache, B. Dakyo, and E. Ceanga. "Error Evaluation for Models of Real Time Wind Turbine Simulators." Wind Engineering 24, no. 3 (May 2000): 203–21. http://dx.doi.org/10.1260/0309524001495567.

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This paper deals with errors inherent in modelling wind turbine simulators. Firstly, different wind turbine simulators are categorised. The work concerns simulators having a real-time soft simulator and an electromechanical tracking system, using any type of servomotor 15–17. Having presented the wind turbine linearised models, with respect to types of servomotor control (in speed or in torque), an analysis is made of simulator mathematical models and simulation performance evaluation, according to the dynamical behaviour of the electromechanical tracking systems. Next, the simulator performances calculation is presented, followed by a simulation error analysis for some particular cases, in order to highlight the differences between the speed and torque control structures. Finally, a servomotor choice principle is established, illustrated by numerical results obtained with the servomotor of a real time wind turbine simulator.

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Duque Suarez, Oscar Manuel, Miguel Ángel Niño Ardila, and Andrés Mauricio Puentes Velásquez. "Control de movimiento y simulación 3D con cinemática completa de un prototipo de mano robotizada de 5 falanges de 5 GDL en el software CAD CATIA de Dassault Systemes." Revista Sennova: Revista del Sistema de Ciencia, Tecnología e Innovación 3 (November 7, 2018): 104. http://dx.doi.org/10.23850/23899573.1626.

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En este proyecto se definió como objetivos el control de movimiento, implementación y simulación en 3D con cinemática completa de una mano robótica de 5 falanges, realizado por los estudiantes de Tecnoacademia Cúcuta los cuales son de 8 instituciones de la ciudad de los grados octavo, noveno y décimo. Entre las descripciones importantes de una mano antropomórfica robotizada están comprendidas en: sus grados de libertad, su configuración, su cinemática y posición articular de cada servomotor para dar movimiento a cada falange. Los objetivos principales de este proyecto son obtener el control de movimiento y la simulación de la cinemática completa, por lo cual se realizaron las simulaciones en el software CAD CATIA 3D de Dassault Systemes. El cual consiste en crear cada tipo de las piezas en 3D de la mano robótica, luego ensamblarlas y simularlas para analizar su cinemática y control de movimiento. Se desarrolló el control de los micro-servomotores por medio de una programación grafica de arduino realizada en el software Visualino la cual le da la capacidad al prototipo de mano robótica de ejecutar todos los grados de libertad y trayectorias de las 5 falanges dándole una posición articular a cada micro-servomotor.

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He, Xiang Xin, Jian Guo Li, and Yue Hua Pang. "Modeling and Simulation of Electromechanical Coupling Dynamics for Permanent Magnet Synchronous AC Servomotor." Advanced Materials Research 418-420 (December 2011): 2106–9. http://dx.doi.org/10.4028/www.scientific.net/amr.418-420.2106.

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Lagrange-Maxwell equations and Park transform are adopted based on electrical and mechanical energy equations consisting of servomotor parameters. Lagrange-Maxwell equations are transformed from three-phase stator reference coordinates to two-phase rotor reference coordinates. Electromechanical coupling dynamics equations of permanent magnet synchronous servomotor in two-phase reference coordinates are obtained. In this dynamical modeling method of electromechanical coupling system, to establish dynamical differential equations needs to measure amplitude of the flux induced by the permanent magnets and the winding's inductance in dq0 reference of the motor but needs not to measure the size of magnetic circuit. The equations deduced is terse, efficient, and the equations easy to use. Electromechanical coupling dynamics system, servomotor is simulated. Simulation results show that the electromechanical coupling dynamics equations deduced for servomotor are correct, and current control schemes are reasonable.

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He, Kai, Jiu Hua Li, Xie Feng Ou, and Ru Xu Du. "A New Type of Servo Direct Drive Turret Punch Press." Advanced Materials Research 139-141 (October 2010): 752–57. http://dx.doi.org/10.4028/www.scientific.net/amr.139-141.752.

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A new type of servo direct drive turret punch press is presented. A servomotor to drive the eccentric-toggle mechanism is used in our design, which combines the advantages of mechanical and hydraulic turret punch press. The displacement, velocity, and acceleration of the punch are calculated, through the kinematics analysis. So, the motion of the punch is controllable through the rotation of the servomotor. Then, the inverse kinematics analysis is studied in detail, and the corresponding motion of the servomotor can be gotten, for different punch motion curves, according to the production requirement. For example, when we design a motion of the punch for a particular stamping process, the motion of servomotor can be obtained through the inverse kinematics analysis. Finally, Output force is acquired by static force analysis, which decides the working capability of the mechanism.

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Sun, Jun, Bin Bin Qian, Xian Jun Qin, and Yuan Huang. "Modeling and Simulation of Kollmorgen Motor Movement Control System Based on SimScape." Applied Mechanics and Materials 713-715 (January 2015): 872–75. http://dx.doi.org/10.4028/www.scientific.net/amm.713-715.872.

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To verify and analyze the dynamics model of servomotor and improve the efficiency of modeling and analysis, we research system of modeling and simulation on kollmorgen AKM41H servomotor in SimScape. According to the driving principle and mathematical model of DC servomotor, Simulink combined with SimScape and Solidworks part will conduct Control system simulation and analysis. By analyzing the frequency curve, we know that dynamics model of Kollmorgen servomotor is accurate. Semi-physical simulation based on SimScape, the angle of motor shaft can be fast and accurate to get the prespecified value. Parameters of feedback control system are selected reasonably, adjust the motor shaft’s speed so that it reduces to zero band. Research shows that SimScape combined with Solidworks take semi-physical simulation experiment. It can support simulation that is different complex engineering project. Compared with the traditional simulation model is more practical and analysis and modeling is more efficiency.

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Dülger, L. Canan, and Ali Kireçci. "Motion Control and Implementation for an AC Servomotor System." Modelling and Simulation in Engineering 2007 (2007): 1–6. http://dx.doi.org/10.1155/2007/50586.

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This paper presents a study on trajectory tracking problem for an AC synchronous servomotor. A mathematical model for the system including AC synchronous servomotor, gearbox, and a load is developed to examine the systems dynamic behavior. The system is controlled by a traditional PID (proportional + integral + derivative) controller. The required values for the controller settings are found experimentally. Different motion profiles are designed, and trapezoidal ones are implemented. Thus, the experimental validation of the model is achieved using the experimental setup. The simulation and experimental results are presented. The tracking performance of an AC servomotor system is illustrated with proposed PID controller.

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Amarapini Divya and Dr.Prasadarao Bobbili. "Comparison and Speed Control of DC Motor and DC Servomotor Using IMC Based PID Controller." International Journal for Modern Trends in Science and Technology 6, no. 12 (January 1, 2021): 493–501. http://dx.doi.org/10.46501/ijmtst061295.

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IMC based PID controllers are being used to speed control of DC motor and DC servomotor in industry. As this controller offer good performance comparitive to conventional controllers like PI, PID and Ziegler Nichols frequency method controllers. This paper presents the speed control of the DC motor and DC servomotor using PI, PID, Ziegler Nichols method and IMC-PID controllers, to realize the optimization of control action. A mathematical calculation of DC motor and DC servomotor has developed and simulations are carried out in MATLAB/ Simulink environment. From the results, it is observed that time domain parameters like rise time 0.6 secs, settling time 2 secs, speed for peak over shoot 1450, peak amplitude 1, with no oscillations using IMC-PID controller on DC motor. And for DC servomotor its rise time is 0.3 seconds, settling time is 1 second, speed for peak overshoot 1450 rpm, peak amplitude 1 with absence of oscillations by using IMC-PID controller

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EGAMI, Tadashi, Toshiaki MURATA, and Takeshi TSUCHIYA. "Preview Control for Induction Servomotor." Transactions of the Society of Instrument and Control Engineers 25, no. 5 (1989): 608–10. http://dx.doi.org/10.9746/sicetr1965.25.608.

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Wang, Ming-Shyan, Ying-Shieh Kung, Edith Putanu, and Chia-Ming Chang. "Networked Controlled Brushless Servomotor Drive." Electric Power Components and Systems 40, no. 3 (January 2, 2012): 321–35. http://dx.doi.org/10.1080/15325008.2011.631083.

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Ni, Yan Bing, Xue Yong Zhong, Lei Guo, and Fa Yang Luo. "Servomotor Parameter Estimation of a 2-DOF Translations and Full Rotation Parallel Mechanism." Advanced Materials Research 139-141 (October 2010): 2140–45. http://dx.doi.org/10.4028/www.scientific.net/amr.139-141.2140.

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Considering the need of designing a parallel mechanism which can achieve a whole week of rotation and two translations, in this paper, the inverse dynamic model based on the virtual work principle was established. And because the maximum velocity and torque of servomotor are the key indices to choose the servomotor, the prediction models of the maximum velocity and torque of active joints employing the singular value decomposition technique were established as well; further, the prediction model of moment of inertia of servomotor was proposed, and then the computer simulation which can the indentify the effectiveness of this method was conducted. The estimating method has been successfully applied in the series of the parallel mechanisms.

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Pliuhin, Vladyslav, Oleksandr Aksonov, Yevgen Tsegelnyk, Sergiy Plankovskyy, Volodymyr Kombarov, and Lidiia Piddubna. "Design and Simulation of a Servo-Drive Motor Using ANSYS Electromagnetics." Lighting Engineering & Power Engineering 60, no. 3 (December 30, 2021): 112–23. http://dx.doi.org/10.33042/2079-424x.2021.60.3.04.

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The paper is devoted to determining the output parameters of a servomotor, which belongs to synchronous machines with permanent magnets, in order to further determine the characteristics of transient modes in the software package ANSYS Electromagnetics. RMxprt, part of ANSYS Electromagnetics, allows to determine the parameters of windings, losses, motor performance, but requires filling out a form with a complete set of geometric dimensions and winding data. Of course, such data are not available in the motor data sheet, so the first task solved in the paper is to determine all the necessary and sufficient parameters to perform the calculation in RMxprt. The results of the calculations were compared with the measurements on the experimental servomotor EMG-10APA22. This paper shows how to export a servomotor object from RMxprt to the Simplorer workspace, which is also part of the ANSYS Electromagnetics. According to the simulation results in ANSYS Simplorer, the characteristics of the transient modes of the servomotor powered by a stable three-phase source are obtained. Prospects for further research related to the improvement of the simulation model in ANSYS Simplorer are presented.

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Tateno, Toshitake, and Hiromu Nakazawa. "Study on High Speed Feed Drive System for Machine Tools -Improvement of PID Control Parameter-." Journal of Robotics and Mechatronics 5, no. 4 (August 20, 1993): 357–62. http://dx.doi.org/10.20965/jrm.1993.p0357.

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In order to realize feed rate of 20m/min for cutting operation of medium and large size machine tools, a new high speed and high accuracy feed drive system which has a servomotor and ballscrew combined with a hydraulic actuator has been developed. As stated in a previous paper this system can drive ten times faster than conventional rate with considerable accuracy. This paper describes a method for determining optimal PI control parameters of the electric servomotor and PD control parameters of the hydraulic actuator. In order to make the best use of the hydraulic actuator a new function which compares the force of electric servomotor with that of hydraulic actuator is proposed. The experimental results show that the controlling parameters determined by this method reduce motor power and the method is proved to be effective.

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Horng, Jenq-Ruey, Ming-Shyan Wang, Tai-Rung Lai, and Sergiu Berinde. "A neural observer for sensorless speed control of servomotors." Engineering Computations 31, no. 8 (October 28, 2014): 1668–78. http://dx.doi.org/10.1108/ec-11-2012-0289.

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Purpose – Extensive efforts have been conducted on the elimination of position sensors in servomotor control. The purpose of this paper is to aim at estimating the servomotor speed without using position sensors and the knowledge of its parameters by artificial neural networks (ANNs). Design/methodology/approach – A neural speed observer based on the Elman neural network (NN) structure takes only motor voltages and currents as inputs. Findings – After offline NNs training, the observer is incorporated into a DSP-based drive and sensorless control is achieved. Research limitations/implications – Future work will consider to reduce the computation time for NNs training and to adaptively tune parameters on line. Practical implications – The experimental results of the proposed method are presented to show the effectiveness. Originality/value – This paper achieves sensorless servomotor control by ANNs which are seldom studied.

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Li, Xue Ting, and An Qun Wang. "High-Sealing Microvalves for PCR." Advanced Materials Research 383-390 (November 2011): 2025–30. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.2025.

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This paper reviews several suitable microvalves for polymerase chain reaction (PCR). First, three type micro-valves in PCR chips are discussed, including pneumatic, servomotor-controlled and passive plug microvalves. Then we present our servomotor-controlled microvalves, with the structure of long passive plug. This valve had many obvious advantages such as simple fabrication and operation, perfect sealing, the ability to withstand relatively high pressure. Furthermore, the microvalve can be operated in a self-actuated mode.

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Rákay, Róbert. "WIRELESS SERVOMOTOR CONTROL FOR REMOTE ACTUATION." TECHNICAL SCIENCES AND TECHNOLOGIES, no. 4(18) (2019): 127–33. http://dx.doi.org/10.25140/2411-5363-2019-4(18)-127-133.

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Urgency of the research. Actual trends of home and hobby automation focus on implementation solutions to everyday life situations. The main goal is usually to simplify or remotely control a task with low cost devices. Target setting. When designing automation systems of different devices, developers are trying to find the most reliableand effective solution with fulfilling every base requirement. Actual scientific researches and issues analysis. To prepare this paper, different publicly available datasheets and experimental solutions were analyzed as well as conclusions of our previous and other ongoing experiments were used to create the knowledge base about this topic. Uninvestigated parts of general matters defining. There are many different communication solutions and every manufacturer of communication device provides its own solution. This paper is insufficient to describe them all. But creates base for further result comparison with other future solutions of the same task. The proposed solution is not connected to any moving object. In a real application the requirements of torque and system power consumption has to be considered. The research objective. In this article a model of a remote control system is proposed for a home automation, in this article a wireless connection is created to remotely control position of servomotor. The statement of basic materials. To propose a future model of home appliance control system it is necessary to implement the newest communication technologies. Using the new communication protocols such BLE, LoRA or nRF provides good basis to solve this issue. Conclusions. The proposed paper introduces a model wireless remote control system for simple tasks such controlling of lights or dimmers. The tested system provides a good basis for future real life application, however, it needs to be adapted to specific tasks.

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Matsunaga, Nobutomo, and Shigeyasu Kawaji. "Fuzzy hybrid control for DC servomotor." IEEJ Transactions on Industry Applications 111, no. 3 (1991): 195–200. http://dx.doi.org/10.1541/ieejias.111.195.

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Wai, R. J., C. M. Lin, and C. F. Hsu. "Hybrid control for induction servomotor drive." IEE Proceedings - Control Theory and Applications 149, no. 6 (November 1, 2002): 555–63. http://dx.doi.org/10.1049/ip-cta:20020730.

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Matsunaga, Nobutomo, and Shigeyasu Kawaji. "Fuzzy hybrid control of DC servomotor." Electrical Engineering in Japan 111, no. 6 (1991): 105–11. http://dx.doi.org/10.1002/eej.4391110613.

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38

Ruiz Holguín, Frank, Hader Gómez Gómez, Sergio Estrada Mesa, Jesús Muñoz Ramírez, Andrés Correa Ruda, and Nicolás Restrepo Estrada. "Diseño e implementación de un sistema para captura de movimiento corporal y control de servomecanismos mediante Kinect y LabView." Germina 3, no. 3 (October 28, 2020): 60–88. http://dx.doi.org/10.52948/germina.v3i3.223.

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En este proyecto se diseñó e implementó un sistema de captura de movimiento corporal basado en el controlador de juegos Kinect desarrollado por Microsoft®, con el objeto de controlar servomecanismos de una forma remota. Para su implementación, se usaron algoritmos de detección de movimiento y procesamiento de imágenes desarrollados en la plataforma de programación gráfica LabView. Se usaron los controladores libres SDK browser V2.0 (Kinect for windows) y las librerías Makerhub de Kinect y Arduino® implementadas para LabView. Basado en la captura de imágenes tridimensionales, el sistema permitió controlar la posición de un brazo robótico Linxmotion de 5 grados de libertad, pudiendo así recrearse en una pantalla las acciones que un usuario desarrolla y la ejecución en tiempo real del estado de los servomotores del brazo robótico. El control para cada servomotor se basó en la implementación de una región de interés – ROI- por sus siglas en inglés (Region of Interest) sobre la interfaz de usuario. Cuando el usuario ejecuta un movimiento y genera una interrupción sobre algún ROI, el servomotor respectivo se activará el tiempo que dura dicha interrupción. Las pruebas preliminares evidenciaron el buen funcionamiento de todas las partes y el correcto control sobre cada uno de los actuadores del sistema. El prototipo desarrollado podría permitir incursionar en temas relativos a la animación, creación de contenidos en ambientes virtuales, videojuegos y realidad aumentada, control de automatismos en ambientes industriales y educativos, rendimiento deportivo, biomecánica y en aplicaciones militares o médicas.

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Kojima, Hiroyuki, Hiroyuki Mitomo, Yuuki Wada, and Kenji Sakamoto. "Study on a Two-Link Horizontal Bar Gymnastics Robot with Passive Joint (Motion Control Using Feedforward Control Based on Inverse Dynamics)." Journal of Robotics and Mechatronics 4, no. 6 (December 20, 1992): 466–71. http://dx.doi.org/10.20965/jrm.1992.p0466.

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This paper describes a motion control method of a twolink horizontal bar gymnastics robot with a passive joint by the use of a feedforward control based on inverse dynamics. A direct current servomotor is placed only at the second joint, and the first link is controlled by the coupling forces and the moments between the active and passive joints. The dynamic behavior of the robot is described by the use of a system with two equations of motion. In the design of the control system, the feedforward control angle of the first joint is first obtained by numerical simulation with the first equation of motion for a desired second joint angle. Then, the feedforward control torque of the servomotor is computed by applying inverse dynamics to the second equation, and the feedforward control voltage is obtained in consideration of the electric circuit of the servomotor. Furthermore, experimental results are given, and the effectiveness of the present motion control method is confirmed.

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40

Diken, H., and A. A. A. Alghamdi. "Residual vibration response spectra for a servomotor-driven flexible beam." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 217, no. 5 (May 1, 2003): 577–83. http://dx.doi.org/10.1243/095440603765226867.

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In this paper residual vibration response spectra for a servomotor-driven flexible beam are discussed. The dynamic model consists of a flexible beam, which is modelled as a Euler-Bernoulli beam. The beam is rotated by a servomotor. The rotational trajectory is assumed to be a triangular velocity (bang-bang) trajectory. The equations governing the vibration of the rotating flexible beam are derived. For the solution, a summation of the orthogonal modes technique is used. Equations are solved numerically. Simulation results show that the maximum amplitude of the residual vibration changes with the change of the frequency ratio. Here the frequency ratio is defined as the first natural frequency of the flexible beam divided by the rotational frequency of the servomotor. When frequency ratios are even numbers like 2, 4, 6, etc., the maximum residual vibration amplitudes are minimized. When frequency ratios are odd numbers like 3, 5, 7, etc., then the maximum residual vibration amplitudes are maximized. The simulation results are also verified by experiment.

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Li, Yong Gang, and Bing Yan. "Conceptual Design of Hybrid-Driven Precision Press." Applied Mechanics and Materials 141 (November 2011): 26–32. http://dx.doi.org/10.4028/www.scientific.net/amm.141.26.

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In this paper, a novel precision press is proposed, which is to combine the motion of a large constant speed motor with a small servomotor via a two-DOF mechanism, where, the constant speed motor provides main torque and motion requirements, while the servomotor contributes to modulations on this motion. The forward kinematic optimal design, electromechanical system dynamics modeling and simulation of this new mechanical press system have been presented here. The simple analysis of theoretical feasibility of the hybrid-driven press is investigated.

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Cojocaru, Victor P., Lidia Ghimpu, Teodor Fedorisin, Rihart Galus, and Victor Suman. "Development of fuzzy system management for solar panel motion using an arduino microcontroller." Moldavian Journal of the Physical Sciences 20, no. 2 (January 2022): 176–82. http://dx.doi.org/10.53081/mjps.2021.20-2.09.

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In this paper, the design of a system for the control of a solar panel motion by means of a servomotor based on an Arduino board is described. The system calculates optimum tracks and position of the sun to ensure that the solar panel is always directed to the sun in order to increase the amount of energy generated by the solar panel. The device makes use of four solar modules for detection and a servomotor to automatically rotate the solar panel to adjust it to the sun position

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Yang, Zhi Yong, and Hui Li. "Design of Automatic Assembly Tire Machine." Applied Mechanics and Materials 142 (November 2011): 99–102. http://dx.doi.org/10.4028/www.scientific.net/amm.142.99.

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This system realizes the function of automatic tire assembly which not only took PLC as control center but also synthetically applied with converter, servomotor and hydraulic. Firstly, it completes the carry of tire with converter by the way of different frequency. Secondly, PLC is used to control servomotor to finish assembling of tire. Thirdly, exact position control is designed through the use of the electro hydraulic servo control. Farther more, mathematics model is established. At the end of this paper, we compare machine efficiency with the manual operation and present the application foreground of this system.

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Lazić, D. V. "Exponential tracking control of an electropneumatic servomotor." Automatic Control and Computer Sciences 41, no. 3 (June 2007): 164–71. http://dx.doi.org/10.3103/s0146411607030078.

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TERASAKA, Dai, Kazuhisa ITO, and Shigeru IKEO. "PID-CONTROL OF WATER HYDRAULIC SERVOMOTOR SYSTEM." Proceedings of the JFPS International Symposium on Fluid Power 2002, no. 5-1 (2002): 143–48. http://dx.doi.org/10.5739/isfp.2002.143.

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Syafruddin, R., Yakob Lilikwatil, Rahmad Hidayat, Ninik Sri Lestari, Andrew Ghea Mahardika, and Devira Givy Ramady. "Brush DC Geared Servomotor Control with Microcontroller." Journal of Physics: Conference Series 1933, no. 1 (June 1, 2021): 012085. http://dx.doi.org/10.1088/1742-6596/1933/1/012085.

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Shugiura, Yasuyuki, Mitsuru Watabe, Kunio Miyashita, Shigeki Morinaga, and Hiroshi Shugai. "High resolution digital detect method for servomotor." IEEJ Transactions on Industry Applications 108, no. 1 (1988): 69–76. http://dx.doi.org/10.1541/ieejias.108.69.

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Makkonen, Arto, and Heikki N. Koivo. "Fuzzy Control of a Nonlinear Servomotor Model." Journal of Intelligent and Fuzzy Systems 3, no. 2 (1995): 145–54. http://dx.doi.org/10.3233/ifs-1995-3204.

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Garrido, R., D. Calderon, and A. Soria. "Servomotor velocity tracking using adaptive fuzzy techniques." Journal of Intelligent & Fuzzy Systems 20, no. 4, 5 (2009): 201–9. http://dx.doi.org/10.3233/ifs-2009-0428.

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Watanabe, K., and H. Yokote. "A microstep controller of a DC servomotor." IEEE Transactions on Instrumentation and Measurement 39, no. 6 (1990): 867–69. http://dx.doi.org/10.1109/19.65785.

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Journal articles on the topic 'Servomotor'

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