Log in

Relevant bibliographies by topics / Servomotors / Journal articles

To see the other types of publications on this topic, follow the link: Servomotors.

Journal articles on the topic 'Servomotors'

Author: Grafiati

Published: 4 June 2021

Last updated: 18 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Servomotors.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

2

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

3

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.

Full text

Abstract:

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).

APA, Harvard, Vancouver, ISO, and other styles

4

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

5

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

6

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

7

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

8

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.

Full text

Abstract:

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

APA, Harvard, Vancouver, ISO, and other styles

9

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

10

Nakamura, Y., K. Tanaka, M. Nakayama, and T. Fujita. "Hybrid mass dampers using two types of electric servomotors: AC servomotors and linear-induction servomotors." Earthquake Engineering & Structural Dynamics 30, no. 11 (2001): 1719–43. http://dx.doi.org/10.1002/eqe.89.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Kusuda, Yoshihiro. "New generation servomotors." Assembly Automation 19, no. 3 (September 1999): 190–96. http://dx.doi.org/10.1108/01445159910280001.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

13

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

14

Lixin Dong, B. J. Nelson, T. Fukuda, and F. Arai. "Towards nanotube linear servomotors." IEEE Transactions on Automation Science and Engineering 3, no. 3 (July 2006): 228–35. http://dx.doi.org/10.1109/tase.2006.875551.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Siahmansouri, Mohsen, Ahmad Ghanbari, and Mir Masoud Seyyed Fakhrabadi. "Design, Implementation and Control of a Fish Robot with Undulating Fins." International Journal of Advanced Robotic Systems 8, no. 5 (January 1, 2011): 60. http://dx.doi.org/10.5772/50898.

Full text

Abstract:

Biomimetic robots can potentially perform better than conventional robots in underwater vehicle designing. This paper describes the design of the propulsion system and depth control of a robotic fish. In this study, inspired by knife fish, we have designed and implemented an undulating fin to produce propulsive force. This undulating fin is a segmental anal fin that produces sinusoidal wave to propel the robot. The relationship between the individual fin segment and phase angles with the overall fin trajectory has also been discussed. This propulsive force can be adjusted and directed for fish robot manoeuvre by a mechanical system with two servomotors. These servomotors regulate the direction and depth of swimming. A wireless remote control system is designed to adjust the servomotors which enables us to control revolution, speed and phase differences of neighbor servomotors of fins. Finally, Field trials are conducted in an outdoor pool to demonstrate the relationship between robotic fish speed and fin parameters like phase difference, the number of phase and undulatory amplitude.

APA, Harvard, Vancouver, ISO, and other styles

16

Krenich, Stanisław, and Marcin Urbanczyk. "Six-Legged Walking Robot for Inspection Tasks." Solid State Phenomena 180 (November 2011): 137–44. http://dx.doi.org/10.4028/www.scientific.net/ssp.180.137.

Full text

Abstract:

In the paper an approach to design and control of reconfigurable walking robots is presented. Based on the biological inspiration the conception of the six-legged robot is proposed. In the first part a mechanical structure, basic kinematical and dynamical dependences in the robot legs are described. The structure, kinetics rules, gait patterns etc. are derived from typical stick insects. According to the above assumptions the body and the legs of the robot are designed and made. At all legs eighteen DC servomotors with resistant encoders are used. In addition at the robot head one DC servomotor for sensors or a vision system is introduced. In the second part a control system is discussed. The multi-level control unit is based on the AVR Atmega8/16 microcontrollers which are responsible for generating of a movement trajectory and at the same time for controlling of the all servomotors. For the proposed control system different gait algorithms and behaviour rules including a forward/back movement, avoiding of obstacles are worked out. They allow an autonomous work of the robot or remote control by an operator. In addition, during the walk the algorithms can match the type of attitudes and gaits to an environment. Next, some experiments of walking for different control algorithms are carried out and described. At the end some conclusions and directions of the further research are given.

APA, Harvard, Vancouver, ISO, and other styles

17

Huth, G. "Optimierung des Wicklungssystems bei permanentmagneterregten AC Servomotoren (Optimized windingsystems of permanent-magnet ac-servomotors)." Electrical Engineering (Archiv fur Elektrotechnik) 81, no. 6 (April 23, 1999): 375–83. http://dx.doi.org/10.1007/s002020050064.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Dote, Y. "Fuzzy Neural Position Controller for Servomotors." IFAC Proceedings Volumes 25, no. 29 (October 1992): 183–88. http://dx.doi.org/10.1016/s1474-6670(17)50564-9.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Gopal, M., and S. Shah. "Adaptive Control Schemes for DC Servomotors." IFAC Proceedings Volumes 22, no. 18 (November 1989): 347–52. http://dx.doi.org/10.1016/s1474-6670(17)52865-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Lee, J. J. "Adaptive tracking controller of DC servomotors." IEEE Transactions on Consumer Electronics 37, no. 4 (1991): 905–12. http://dx.doi.org/10.1109/30.106957.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

22

Ramírez, A., R. Garrido, and S. Mondié. "Integral Retarded Velocity Control of DC Servomotors." IFAC Proceedings Volumes 46, no. 3 (2013): 558–63. http://dx.doi.org/10.3182/20130204-3-fr-4031.00082.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Gorez, R. "Hybrid Control System for D-C Servomotors." IFAC Proceedings Volumes 22, no. 18 (November 1989): 335–39. http://dx.doi.org/10.1016/s1474-6670(17)52863-3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Jin, Sangho, Ichiro Kimura, and Keigo Watanabe. "Controls of servomotors for carry hospital robots." Journal of Intelligent & Robotic Systems 7, no. 3 (June 1993): 353–69. http://dx.doi.org/10.1007/bf01257772.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Zhang, Si Qing, Xiu Cheng Hu, and Xiao Fan Li. "Study on Ring Gate Closure in still Water Based on ANSYS." Advanced Materials Research 614-615 (December 2012): 520–24. http://dx.doi.org/10.4028/www.scientific.net/amr.614-615.520.

Full text

Abstract:

Ring gate of Ahai hydropower Station is known to the highest ring gate in the world. In this paper, it is calculated to the driving loads of the Ahai ring gate by six hydraulic servomotors during a closure without automatic control (i.e. in case of a breakdown of the electrical control system), analyzed the behavior of the operating system of the ring gate closure in balanced conditions with the permanent loads, and finally shown to how the six servomotors are synchronized on the basis of the driving loads. There are proved to The feasibility and the credibility of this system of ring gate to a case by using ANSYS.

APA, Harvard, Vancouver, ISO, and other styles

26

Su, Kuo Lan, Bo Yi Li, Jr Hung Guo, and H. H. Kevin Chau. "Motion Control of a Robot Arm." Applied Mechanics and Materials 479-480 (December 2013): 768–72. http://dx.doi.org/10.4028/www.scientific.net/amm.479-480.768.

Full text

Abstract:

The article designs a seven joints robot arm using PC-based controller. The system architecture of the robot arm contains seven DC servomotors, seven driver devices and a NI motion control card. The robot arm uses proximity sensors to locate the limit position, and programs motion trajectories to finish assigned tasks. We tune the parameters of the PID controller for the robot arm, and get the nice response to control the robot arm moving to the assigned position. The user interface is developed to control each DC servomotor using Visual Basic. The paper computes the kinematic equations of the seven joints robot arm, and calculates the motion displacement of each joint using inverse kinematic equation. The controller of the robot arm can implement precision point to point motion trajectories, and programs the motion paths on the user interface. In the experimental result, users can program the word type in the user interface. The robot arm catches the pin to write the word in the plane.

APA, Harvard, Vancouver, ISO, and other styles

27

Andrioaia, Dragos, and Dan Rotar. "Determining the Driving System for Robots with Delta 3 DOF Parallel Structure, Using SolidWorks." Applied Mechanics and Materials 809-810 (November 2015): 1219–24. http://dx.doi.org/10.4028/www.scientific.net/amm.809-810.1219.

Full text

Abstract:

The robots which are composed of mechanisms with Delta 3 DOF parallel structure are increasingly used due to the advantages they poses such as high rigidity and that they can be used at high speed and acceleration. When the mechanical structure of the parallel robots with Delta 3 DOF structure is designed, a proper selection of the drive servomotors is imposed. The drive servomotors are chosen according to the values of the torque needed for the manipulated object to move in the workspace along a trajectory with a specific speed and acceleration. In this paper, the authors approach the study regarding the variation of the drive torques of parallel robots with Delta 3 DOF structure, when the manipulated object moves along a trajectory with imposed speed and acceleration, in order to choose the drive servomotors. In order to determine the value of the drive torque, SolidWorks software was used. From the results obtained by experimental means, it has been revealed that the usage of the software packages in the dynamic simulation of the mechanical assemblies determines the shorten of time, costs of projection, in comparison with practical testing which supposes the realization of the prototypes physically, expensive and time consuming process.

APA, Harvard, Vancouver, ISO, and other styles

28

Monkova, Katarina, and Andrea Cizikova. "Simulation of Robot Motion Operating in the Workcell to Specify Servomotors in its Individual Joints." Applied Mechanics and Materials 718 (December 2014): 83–87. http://dx.doi.org/10.4028/www.scientific.net/amm.718.83.

Full text

Abstract:

Robots and manipulators are often part of technological workshop. Their end effectors usually repeat motion at the same path so to be the workpiece transferred and oriented into the specific position. With the definition of the servomotors and drivers in individual joints of robot, when the motion trajectory of selected point is known, is concerned part of mechanics so called inverse kinematics. The article deals with virtual simulation of robot motion as a tool that supports the research of kinematics characteristics in individual joints. Software PTC Creo was used for the computer aid of modelling and servomotors investigation. Obtained dependences of accelerations in time for each joint can be backward used at the controlling of robot motion in the real conditions.

APA, Harvard, Vancouver, ISO, and other styles

29

Hu, Xiu Cheng. "Force Analysis of Ring Gate Based on ANSYS." Applied Mechanics and Materials 226-228 (November 2012): 1250–54. http://dx.doi.org/10.4028/www.scientific.net/amm.226-228.1250.

Full text

Abstract:

Ring gate of Ahai hydropower Station is known to the highest ring gate in the world. In this paper, it is calculated to the driving loads of the Ahai ring gate by six hydraulic servomotors during a closure without automatic control (i.e. in case of a breakdown of the electrical control system), analyzed the behavior of the operating system of the ring gate closure with the water discharge and closure with three wicket gates not synchronized (i.e. three wicket gates remained accidentally in open position), and finally shown to how the 6 servomotors are synchronized on the basis of the driving loads. There are proved to The feasibility and the credibility of this system of ring gate by using ANSYS to a case.

APA, Harvard, Vancouver, ISO, and other styles

30

Yoshikawa, Norio, Hiyoshi Yamada, and Yasuaki Kasai. "Application of MQ Ring Magnets to AC-Servomotors." DENKI-SEIKO[ELECTRIC FURNACE STEEL] 63, no. 3 (1992): 226–34. http://dx.doi.org/10.4262/denkiseiko.63.226.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

HIKITA, Hiromitsu, Takehito NODA, Naohiko HANAJIMA, Mitsuhisa YAMASHITA, Takashi SHIRAISHI, and Takumi ITO. "Auto-Tuning of Digital Controllers for DC servomotors." Journal of the Japan Society for Precision Engineering 67, no. 3 (2001): 466–72. http://dx.doi.org/10.2493/jjspe.67.466.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Andrioaia, Dragoș, Dan Rotar, and Gabriel Puiu. "Determining the Driving Torques of the Robots with Delta 3DOF Parallel Structure by Using the MSC ADAMS Software Pack." Applied Mechanics and Materials 332 (July 2013): 224–28. http://dx.doi.org/10.4028/www.scientific.net/amm.332.224.

Full text

Abstract:

During the latest years the parallel structure robots have been used more and more due to their advantages that consist of: high stiffness, availability for usage at higher speed and acceleration rates. In general these robots are used for handling light objects [. For choosing the driving servomotors of the robots, the maximum torques needed for the parallel mechanism to transport an object of a certain weight, along a trajectory, at a certain speed and acceleration, have to be considered. In this work the authors are approaching the study of the variation of the driving torques of the robots with parallel structure Delta 3DOF along a trajectory, in order to select the driving servomotors [2]. For analyzing the driving torque variations along a trajectory the MSC Adams software pack has been used.

APA, Harvard, Vancouver, ISO, and other styles

33

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

34

Papoutsidakis, M., A. Chatzopoulos, E. Symeonaki, and D. Tseles. "Methodology of PID Control – A Case Study for Servomotors." International Journal of Computer Applications 179, no. 30 (March 24, 2018): 30–33. http://dx.doi.org/10.5120/ijca2018916688.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Liao, C.-H., F.-C. Chou, P.-C. Tung, and Y.-D. Chen. "A novel robust disturbance compensation scheme for d.c. servomotors." Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering 222, no. 3 (May 2008): 185–96. http://dx.doi.org/10.1243/09596518jsce482.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Semones, Burley C. "Application of high‐energy permanent‐magnet materials to servomotors." Journal of Applied Physics 57, no. 8 (April 15, 1985): 3817–19. http://dx.doi.org/10.1063/1.334930.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Suyitno, A., J. Fujikawa, H. Kobayashi, and Y. Dote. "Variable-structured robust controller by fuzzy logic for servomotors." IEEE Transactions on Industrial Electronics 40, no. 1 (1993): 80–88. http://dx.doi.org/10.1109/41.184824.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

TAN, K. P., R. STANWAY, and W. A. BULLOUGH. "AN ELECTRO-RHEOLOGICAL (ER) ROBOTIC SYSTEM: CONTROLLER VALIDATION, TREND STUDY, COMPARISON WITH DC SERVOMOTORS, POSITION REPEATABILITY." International Journal of Modern Physics B 22, no. 29 (November 20, 2008): 5111–44. http://dx.doi.org/10.1142/s0217979208039964.

Full text

Abstract:

Industrial robot arms experience position inaccuracies due to the output cogging torques of the DC servomotors. Therefore, in an attempt to resolve these position problems, an electro-rheological (ER) robotic system is considered as an actuator to drive the robot arm rapidly in both directions. This ER robotic system consists of two ER clutches, an ER brake, a gear train, an encoder and a robot arm. The ER clutches produce clockwise and anti-clockwise rotations. The ER brake decelerates and halts the robot arm. The main aim of this paper is to validate a controller model of the ER robotic arm. Next, a trend study is used to determine the optimum working conditions of the ER actuated-robotic arm. The robotic displacements of both the ER rotary devices and the commercial DC servomotors are compared in terms of position accuracy and speed of response. Finally, the repeatability of the robotic end positions is examined in order to determine the importance of the ER brake.

APA, Harvard, Vancouver, ISO, and other styles

39

Chen, Shang Liang, Dinh Hoai Nam, and Nguyen Van Thanh. "Synchronous Controller for Dual Servo Motor in Servo Press." Applied Mechanics and Materials 494-495 (February 2014): 1175–81. http://dx.doi.org/10.4028/www.scientific.net/amm.494-495.1175.

Full text

Abstract:

This study shows the results of double servomotors synchronization controller (SC) for Mirco-precision servo press. Two systems are used in this study, one is the master motor and another is the slave motor. Each system is designed separately. Also, it is necessary to use the synchronous controller to minimize the synchronization error and the motion command is transmitted simultaneously to two motors. The control system for the master motor includes a feedback controller (FB) and a zero phase error tracking controller (ZPET). For the slave motor, only velocity is controlled. The feedback controller is a cascade control structure, velocity and position controller. It can make the output follows the command. In order to reduce synchronized motion error, two servomotors are synchronized by the SC. The results of simulation reveal that the performance of the overall control system is improved compare to open loop, the synchronous position error between two sliders were less than 4μmm.

APA, Harvard, Vancouver, ISO, and other styles

40

Paula, Greg. "The Rise of VSR Motors." Mechanical Engineering 120, no. 02 (February 1, 1998): 86–87. http://dx.doi.org/10.1115/1.1998-feb-6.

Full text

Abstract:

This article reviews variable-switched reluctance (VSR) motors that are now entering mainstream use from jet fighters to washing machines. A VSR motor is generally used as a stepper motor and, if properly controlled, can be made to behave like a servomotor. Basically, the motor is a rotor and stator with a coil winding in the stator. VSR motors also provide other benefits. They can be programmed to precisely match the loads they serve, and their simple, rugged construction has no expensive magnets or squirrel cages like the ac induction motor. It can be difficult to give VSR motors a smooth torque profile, so they are used more often in place of variable speed motors than as servomotors. There are ways to control torque ripple, such as adding encoders and electronics to compensate, but these added controls could cost at least as much as what the motor itself would save. VSR motors work with relatively small air gaps. If the shaft is off-center, unbalanced tangential forces come into play, so shafts and bearing systems generally need to be of a higher quality than with other motors.

APA, Harvard, Vancouver, ISO, and other styles

41

Lindner, Lars, Oleg Sergiyenko, Julio C. Rodríguez-Quiñonez, Moises Rivas-Lopez, Daniel Hernandez-Balbuena, Wendy Flores-Fuentes, Fabian Natanael Murrieta-Rico, and Vera Tyrsa. "Mobile robot vision system using continuous laser scanning for industrial application." Industrial Robot: An International Journal 43, no. 4 (June 20, 2016): 360–69. http://dx.doi.org/10.1108/ir-01-2016-0048.

Full text

Abstract:

Purpose The purpose of this paper is the presentation and research of a novel robot vision system, which uses laser dynamic triangulation, to determine three-dimensional (3D) coordinates of an observed object. The previously used physical operation principle of discontinuous scanning method is substituted by continuous method. Thereby applications become possible that were previously limited by this discretization. Design/methodology/approach The previously used prototype No. 2, which uses stepping motors to realize a discontinuous laser scan, was substituted by the new developed prototype No. 3, which contains servomotors, to achieve a continuous laser scan. The new prototype possesses only half the width and turns out to be significantly smaller and therefore lighter than the old one. Furthermore, no transmissions are used, which reduce the systematic error of laser positioning and increase the system reliability. Findings By using a continuous laser scan method instead of discontinuous laser scan method, dead zones in the laser scanner field can be eliminated. Thereby, also by changing the physical operation principle, the implementation of applications is allowed, which previously was limited by the fixed step size or by the object distance under observation. By using servomotors instead of stepping motors, also a significant reduced positioning time can be accomplished maintaining the relative positioning error less than 1 per cent. Originality/value The originality is based on the substitution of the physical operation principle of discontinuous by continuous laser scan. The previously used stepping motors discretized the laser scanner field and thereby produced dead zones, where 3D coordinates cannot be detected. These stepping motors were substituted by servomotors to revoke these disadvantages and provide a continuous laser scan, where dead zones in the field of view get eliminated and the step response of the laser scanner accelerated.

APA, Harvard, Vancouver, ISO, and other styles

42

Matsumura, Takashi, Yasuharu Hayase, Jerome Blanchet, Naoki Iioka, and Ryo Kato. "Surface Texturing in Micro Parametric Machining." International Journal of Automation Technology 10, no. 1 (January 4, 2016): 30–40. http://dx.doi.org/10.20965/ijat.2016.p0030.

Full text

Abstract:

Parametric machining is applied to fabricate micro-scale textures on surfaces by rotating the workpiece and tool. Periodic circular textures are controlled by only four parameters: the distance from the rotation center of the workpiece to that of the tool holder, the rotation radius of the tool in the tool holder, and the angular velocities of the workpiece and the tool holder. The textures to be machined are controlled by simulating the trajectory of the tool on the workpiece. A texturing machine was developed with two servomotors and three stepping motors, where the rotations of the servomotors were synchronized. Some examples are shown to verify the presented texturing in cutting tests. Because functional surfaces should be controlled by the surface structure, a model is presented to simulate the surface profiles of the textures. The orientation of the cutting tool with respect to the cutting direction is discussed in terms of the surface structure and the surface finish. The cutting load is estimated with the indentation and the shearing components in a simplified force model.

APA, Harvard, Vancouver, ISO, and other styles

43

Lin, C. M., and C. F. Hsu. "Recurrent-Neural-Network-Based Adaptive-Backstepping Control for Induction Servomotors." IEEE Transactions on Industrial Electronics 52, no. 6 (December 2005): 1677–84. http://dx.doi.org/10.1109/tie.2005.858704.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

45

Ruzza, Giuseppe, Luigi Guerriero, Paola Revellino, and Francesco M. Guadagno. "A Low-Cost Chamber Prototype for Automatic Thermal Analysis of MEMS IMU Sensors in Tilt Measurements Perspective." Sensors 19, no. 12 (June 16, 2019): 2705. http://dx.doi.org/10.3390/s19122705.

Full text

Abstract:

In this work, a low-cost, open-source and replicable system prototype for thermal analysis of low-cost Micro Electro-Mechanical Systems (MEMS) Inertial Measurement Unit (IMU) sensors in tilt measurement perspective is presented and tested. The system is formed of a 3D printed frame, a thermal cell consisting in a Peltier element mounted over a heat sink, and a control and power system. The frame is designed to allow the independent biaxial tilting of the thermal cell through two servomotors. The control board is formed by an Arduino® and a self-made board including a power drive for controlling the thermal unit and servomotors. We tested the chamber analyzing the behavior of multiple MEMS IMU onboard accelerometers suitable for measuring tilt. Our results underline the variability of the thermal behavior of the sensors, also for different sensor boards of the same model, and consequently the need for the adoption of a thermal compensation strategy based on thermal analysis results. These data suggesting the need for the analysis of the thermal behavior of MEMS-based sensors, indicate the potential of our system in making low-cost sensors suitable in medium-to-high precision monitoring applications.

APA, Harvard, Vancouver, ISO, and other styles

46

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

47

Jomartov, Assylbek. "Model of Two-Link Planar Robot on SimulationX." Advanced Materials Research 1025-1026 (September 2014): 897–901. http://dx.doi.org/10.4028/www.scientific.net/amr.1025-1026.897.

Full text

Abstract:

The paper shows a simulation of the motion of simple planar robot, consisting of two links and kinematic drives on SimulationX. Model of robot takes into account the characteristics of the servomotors. The simulation results of robot motion can be obtained in a convenient graphical form for subsequent analysis. The model can be used in laboratory work by students in the universities of Kazakhstan.

APA, Harvard, Vancouver, ISO, and other styles

48

Жирков, Александр, Aleksandr Zhirkov, Андрей Киричек, Andrey Kirichek, Светлана Федонина, and Svetlana Fedonina. "Current tendencies in modular equipment creation." Bulletin of Bryansk state technical university 2015, no. 4 (December 30, 2015): 100–107. http://dx.doi.org/10.12737/17145.

Full text

Abstract:

A current tendency in the creation of widespread destination equipment by means of used in the design bulk exacting modules of guides, gearing parts, electromechanical drive, stepper motors and servomotors is considered. The prospects of manufacturing the modular machine base elements made of organic concrete, ensuring an essential level of automation at the expense of equipping with accessible open systems with numerical control are emphasized.

APA, Harvard, Vancouver, ISO, and other styles

49

SOBEHART, Lionel, and Hiroyuki HARADA. "2A1-O02 Physical Simulation of Low-cost "Smart" Servomotors(Mechanism and Control for Actuator (1))." Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2014 (2014): _2A1—O02_1—_2A1—O02_4. http://dx.doi.org/10.1299/jsmermd.2014._2a1-o02_1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Senjyu, Tomonobu, Shingo Ashimine, Hisashi Kamifurutono, and Katumi Uezato. "Robust Speed Control Method for DC Servomotors using Adaptive Gain Law." IEEJ Transactions on Electronics, Information and Systems 117, no. 7 (1997): 907–14. http://dx.doi.org/10.1541/ieejeiss1987.117.7_907.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!