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Journal articles on the topic 'Swing rotors'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Smirnova, Vera B., and Anton V. Proskurnikov. "Self-synchronization of unbalanced rotors and the swing equation." IFAC-PapersOnLine 54, no. 17 (2021): 71–76. http://dx.doi.org/10.1016/j.ifacol.2021.11.028.

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2

Flores, Jonathan, Sergio Salazar, Ivan Gonzalez-Hernandez, et al. "Control of Helicopter Using Virtual Swashplate." Drones 8, no. 7 (2024): 327. http://dx.doi.org/10.3390/drones8070327.

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This article presents a virtual swashplate mechanism for a mini helicopter in classic configuration. The propeller bases are part of a passive mechanism driven by main rotor torque modulaton, this mechanism generates a synchronous and opposite change in the propellers angle of attack, then the thrust vector tilts. This approach proposes to control the 6 degrees of freedom of the aircraft using two rotors. The main rotor controls vertical displacement and uses torque modulation and swing-hinged propellers to generate pitch and roll moments and the horizontal displacement while the yaw moment is

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3

Wang, Xiaodong, and Caiqin Song. "Analysis on Nonlinear Dynamic Characteristic of Synchronous Generator Rotor System." Complexity 2019 (January 1, 2019): 1–14. http://dx.doi.org/10.1155/2019/3603172.

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This paper focuses on the swing oscillation process of the synchronous generator rotors in a three-machine power system. With the help of bifurcation diagram, time history, phase portrait, Poincaré section, and frequency spectrum, the complex dynamical behaviors and their evolution process are detected clearly in this power system with varying perturbation related parameters and different system parameters. Furthermore, combining the qualitative and quantitative characteristics of the chaotic motion, different paths leading to chaos coexisting in this system have been found. The Wolf method ha

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4

Chen, Hu, Cun Yun Pan, and Teng An Zou. "Analysis on Kinematic of Rod on Rotor with Sine Curve Revolving Speed in Twin-Rotor Cylinder-Embedded Piston Engine." Advanced Materials Research 853 (December 2013): 553–58. http://dx.doi.org/10.4028/www.scientific.net/amr.853.553.

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Twin-rotor cylinder-embedded piston engine are a high power density and no valve mechanism engine. Given the motion law of two rotors sine curve change, its kinematic model of rod can be established, and key parameters of rod related to engine performance, such as angular displacement, velocity and acceleration of rod are presented. And then the kinematic model of rod is imported into MATLAB, the moving law of angular displacement, velocity and acceleration of rod are analyzed by changing the value of swing amplitude k. It can be concluded that the changes of rods motion are periodic, relative

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5

Zhang, Songchao, Chen Cai, Jiqiang Li, et al. "The Airflow Field Characteristics of the Unmanned Agricultural Aerial System on Oilseed Rape (Brassica napus) Canopy for Supplementary Pollination." Agronomy 11, no. 10 (2021): 2035. http://dx.doi.org/10.3390/agronomy11102035.

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Pollination success is essential for hybrid oilseed rape (OSR, Brassica napus) seed production, but traditional pollination methods are not efficient. The unmanned agricultural aerial system (UAAS) has developed rapidly and has been widely used in China. When flying, the wind field generated by the rotors overcomes the UAAS gravity, and it blows and disturbs the crops below, which helps the pollen spread. In order to investigate the distribution law of the three-dimensional (direction x, y, z) airflow field, experiments involving three levels of flight speed (FS) at 4.0, 5.0, and 6.0 m/s, and

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6

Zhang, Zhen, Tiezhu Zhang, Hongxin Zhang, et al. "Modeling, Kinematic Characteristics Analysis and Experimental Testing of an Elliptical Rotor Scraper Pump." Machines 10, no. 2 (2022): 78. http://dx.doi.org/10.3390/machines10020078.

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Against the backdrop of the rapid burgeoning of international energy engineering, the efficient utilization of energy is a paramount factor. The key idea in this paper is to propose an elliptical rotor scraper pump (ERSP) in order to address the imperfections and defects of traditional volume pumps, such as their labyrinthine design, low volume utilization efficiency and undesirable sealing performance. The ERSP can dramatically achieve the aims of ameliorating pump structure and improving energy efficiency. One of the Roots pump's rotors or the vane pump's shifting blade is replaced by a swin

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7

YOSHIDA, Yasuo, and Miyoka YAJIMA. "Control of Rotation and Swing of a Rigid Body Suspended Load Using Inertia Rotors." Transactions of the Japan Society of Mechanical Engineers Series C 69, no. 677 (2003): 63–68. http://dx.doi.org/10.1299/kikaic.69.63.

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8

Xia, Chen, Zhiguang Zhang, Guoping Huang, Tong Zhou, and Jianhua Xu. "A Micro Swing Rotor Engine and the Preliminary Study of Its Thermodynamic Characteristics." Energies 11, no. 10 (2018): 2684. http://dx.doi.org/10.3390/en11102684.

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The rapid progress in microelectromechanical system technology has facilitated great developments in micro heat engines, however, defects in these engines still need to be overcome. Thus, a novel four-stroke micro swing rotor engine (MSRE) that features the advantages of Wankel engine and the micro swing engine is proposed in this study. Kinematic and thermodynamic analyses of the MSRE were performed, and a preliminary experimental research was conducted. In the MSRE, the driver assembly was used to dominate the movements of the two rotors. By the design guideline adaptable to the engine opera

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9

Kay, Matthew W., Gregory P. Walcott, James D. Gladden, Sharon B. Melnick, and Jack M. Rogers. "Lifetimes of epicardial rotors in panoramic optical maps of fibrillating swine ventricles." American Journal of Physiology-Heart and Circulatory Physiology 291, no. 4 (2006): H1935—H1941. http://dx.doi.org/10.1152/ajpheart.00276.2006.

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During ventricular fibrillation (VF), electrical activation waves are fragmented, and the heart cannot contract in synchrony. It has been proposed that VF waves emanate from stable periodic sources (often called “mother rotors”). The objective of the present study was to determine if stable rotors are consistently present on the epicardial surface of hearts comparable in size to human hearts. Using new optical mapping technology, we imaged VF from nearly the entire ventricular surface of six isolated swine hearts. Using newly developed pattern analysis algorithms, we identified and tracked VF

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10

HASEGAWA, YOSHITAKA, and YOSHISUKE UEDA. "GLOBAL BASIN STRUCTURE OF ATTRACTION OF TWO DEGREES OF FREEDOM SWING EQUATION SYSTEM." International Journal of Bifurcation and Chaos 09, no. 08 (1999): 1549–69. http://dx.doi.org/10.1142/s0218127499001085.

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A model of a simple electric power system consisting of two generators operating onto an infinite bus is studied by numerical simulations. In many practical situations the proper concern of the engineer is the extent of the basin of attraction of the safe operating condition in phase space. However traditional analysis using energy function method can capture only the regions of sufficient conditions, so that geometrical concepts and theories of dynamical systems are recognized to be necessary tools to understand power system stability. In this paper, all equilibrium points and limit cycles ar

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11

Kholodyuk, Oleksandr, and Oleksii Tokarchuk. "THE EFFICIENCY OF USING AGRAS DRONES FOR SPRAYING, THEIR DESIGN, TECHNICAL AND TECHNOLOGICAL FEATURES." ENGINEERING, ENERGY, TRANSPORT AIC, no. 2(117) (August 30, 2022): 63–74. http://dx.doi.org/10.37128/2520-6168-2022-2-7.

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Agrotechnical operations on spraying crops from diseases and pests are an important part of almost any agricultural technology. They make up a significant part of the cost of all agricultural technology and, as a result, the cost of the final product. The use of unmanned aerial vehicles (UAVs) has a huge potential in agriculture and every year the interest in their use grows primarily in the implementation of the tasks of precision farming. The object of research in this article is the process of spraying work areas with Agras unmanned aerial vehicles. The aim of the study is to study the effe

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12

A, Jeevitha, and Devi S. "An Enhanced Symmetrical Fault Detection during Power Swing/Angular Instability using Park’s Transformation." Indonesian Journal of Electrical Engineering and Computer Science 2, no. 1 (2016): 23. http://dx.doi.org/10.11591/ijeecs.v2.i1.pp23-31.

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<p>Power systems are subjected to a wide range of small or large disturbances during operating conditions. Power system disturbances such as line switching, generator disconnection and sudden removal of faults causes oscillations in an electrical machine rotor angles that can result in severe power swings. Depending on the protection controls, the system may remain stable or unstable and it may result in loss of synchronism. In recent years, distance relay finds difficulty between symmetrical fault and power swing which causes undesired tripping of the transmission line is the foremost r

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13

He, Liangguo, Zhikai Wan, Kun Li, et al. "A resonant inertial impact rotary piezoelectric motor based on a self-clamping structure." Review of Scientific Instruments 94, no. 4 (2023): 045003. http://dx.doi.org/10.1063/5.0133681.

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A resonant inertial impact rotary piezoelectric motor based on a self-clamping structure is designed, assembled, and tested. The designed piezoelectric motor mainly includes a rotor (two vibrators, preload mechanism, and intermediate connection mechanism), a clamping mechanism, and another auxiliary mechanism. The piezoelectric ceramic sheet on the rotor drives the vibrator to swing under the excitation of a single harmonic wave. Because there is a clamping mechanism formed by the combination of clamp baffle and fixed clamp ring, thus the half-cycle resonant rotation of the rotor can be effect

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14

Okoli, John U., and A. Aadum. "Flapper Feed Device for Improved Productivity of Cassava Grater." Advanced Materials Research 62-64 (February 2009): 221–25. http://dx.doi.org/10.4028/www.scientific.net/amr.62-64.221.

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A modified hopper design of the conventional cassava grater and its concomitant productivity improvement is presented. One of the sides of the inverted truncated rectangular pyramidal hopper was hinged at the lower end and swung through angle of 15 to 30 degrees. This flapper swing served as feed for the rotary grater. The flapper allowed the cassava tubers to be fed over a larger grater surface area permitting cassava feed over an angle of 120 degrees instead of the usual 90 degrees. It further allowed the variation of the space between the rotary grater and the hopper thereby enhancing compl

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15

Cao, Yang, Tiezhu Zhang, Hongxin Zhang, Zhen Zhang, Jian Yang, and Baoquan Liu. "Study of the Self-Locking Characteristics of the Swing Scraper of an Elliptical Rotor Scraper Pump." Machines 10, no. 5 (2022): 370. http://dx.doi.org/10.3390/machines10050370.

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This paper proposes an Elliptical Rotor Scraper Pump (ERSP) to address traditional displacement pump defects, such as complex structures, poor self-sealing, low volume utilization, and considerable noise, etc. The ERSP utilizes a swing scraper instead of one rotor in a conventional multirotor pump or reciprocating moving vanes in a traditional vane pump and can achieve high-pressure output through pressure self-sealing. The swing scraper can divide the working chamber into high- and low-pressure rooms. Due to the small swing amplitude of the scraper, the ERSP has low operating noise. The ERSP

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16

Joshi, Ayush, and Pushkar P. Lele. "Scrutinizing Stator Rotation in the Bacterial Flagellum: Reconciling Experiments and Switching Models." Biomolecules 15, no. 3 (2025): 355. https://doi.org/10.3390/biom15030355.

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The bacterial flagellar motor is one of the few known rotary motors, powering motility and chemotaxis. The mechanisms underlying its rotation and the switching of its rotational direction are fundamental problems in biology that are of significant interest. Recent high-resolution studies of the flagellar motor have transformed our understanding of the motor, revealing a novel gear mechanism where a membranous pentamer of MotA proteins rotates around a cell wall-anchored dimer of MotB proteins to turn the contacting flagellar rotor. A derivative model suggests that significant changes in rotor

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17

Nazaruddin, Nazaruddin, and Anang Suhandi. "Modification and Testing System Control and Swing Model Excavator System." Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse) 25, no. 1 (2015): 1–6. https://doi.org/10.36842/jomase.v25i1.431.

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One of the heavy equipment that play role in development projects is the excavator. An excavator can perform construction work such as digging, splitting, loading and so on. Laboratory of Hydraulics and Pneumatics Mechanical Engineering Faculty of Engineering, University of Riau has produced a model excavator using pneumatic system, support on a controller box, equipped with buttons setting and motion rotary swing 120°. The research has modifications control system, remove the control box under the excavator and change to the remote system. The motion rotary swing system has changed from 120°

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18

Sarip, A. R., and M. N. Musa. "Friction Analysis on Vane of an Existing and of a Novel Multi Vane Rotary Compressor." Applied Mechanics and Materials 284-287 (January 2013): 763–67. http://dx.doi.org/10.4028/www.scientific.net/amm.284-287.763.

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This paper presents results of a frictional analysis on a new rotating sleeve multi-vane rotary (RSMVR) compressor. The new five-vane rotary compressor is adapted from the existing concept of a rotating sleeve single-vane rotary (RSSVR) compressor, in which the extended rounded end of one vane is embedded into the inner surface of the sleeve which allows the vane to swing within a certain small angle. As the rotor rotates, this vane drives the sleeve which in turn pushes and pulls the vane into and out of the slot in the rotor, respectively. The other four vanes are similarly pushed into the r

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19

Yang, Kang, and Yi Yang. "Application of FEM Analysis to Fault Diagnosis of Cracked Rotor." Applied Mechanics and Materials 37-38 (November 2010): 181–84. http://dx.doi.org/10.4028/www.scientific.net/amm.37-38.181.

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Based on the simple crack model and the finite element method (FEM) theorem, the corresponding dynamic equation of the cracked rotor based on FEM analysis is modeled and the numerical simulation solutions are obtained. By analyzing the dynamic characteristics of cracked rotor in diverse conditions, the properties of the un-cracked rotor and cracked rotor are discussed. A valid fault diagnosis method of cracked rotor is purposed. The method demonstrates that the cracked rotor can be identified by estimating if the swing of disk center obviously accretion and appear wave crest when rotate speed

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20

Tian, Ye. "The Design and Kinematics Analysis of Four-Bar Linkage of Micro-Swing Engine." Advanced Materials Research 875-877 (February 2014): 1199–204. http://dx.doi.org/10.4028/www.scientific.net/amr.875-877.1199.

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Based on the movement characteristics,the four-bar mechanism of Micro-swing Engine was designed.The mechanism transform swing movement into rotary motion.With the kinematics model,the moving law of four-bar mechanism was analyzied.And simulate the machinery with computer to abtain the movement of curve of four-bar mechanism.The results show that the four-bar mechanism of Micro-swing Engine running smoothly and the inertia can be overcome the dead point.This will provides the theoretical basis for four-bar mechanism of Micro-swing Engine.

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21

Silik, Yusuf, and Ulas Yaman. "Control of Rotary Inverted Pendulum by Using On–Off Type of Cold Gas Thrusters." Actuators 9, no. 4 (2020): 95. http://dx.doi.org/10.3390/act9040095.

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This article describes the control of a rotary inverted pendulum utilizing on–off-type cold gas thrusters as the actuators, which have high similarities with thruster actuated spacecrafts with slosh dynamics. The study is completed in three phases. Firstly, a Pulse Width Modulator (PWM) design method is utilized to obtain quasi-linear thrust output from the on–off-type thrusters. Then, a single axis angle controller is designed and tested on the setup along with the PWM scheme. Finally, a pendulum is connected to the other end of the platform and a rotary inverted pendulum (Furuta Pendulum) is

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22

Wang, Chong, Shigong Zhang, Tiezhu Zhang, Hongxin Zhang, and Minghao Li. "Study of a Companion Trajectory Kinematics Analysis Method for the Five-Blade Rotor Swing Scraper Pump." Machines 12, no. 12 (2024): 877. https://doi.org/10.3390/machines12120877.

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This paper proposes a five-blade rotor swing scraper pump (FRSSP) to overcome traditional volumetric pumps’ drawbacks, such as poor sealing performance, low volumetric efficiency, and complex structure. This pump employs a rotating cam-swing scraper mechanism to achieve fluid intake and discharge. The FRSSP is compact in structure, self-sealing, and highly efficient in volumetric utilization, offering promising applications. A companion trajectory kinematic analysis method of the FRSSP is proposed. The polar coordinate equation of the companion trajectory is derived from the profile equation o

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23

Xu, MM, ZT Zhang, Z. Zhou, et al. "Analysis Research on Operation Condition of Mining Crane." Journal of Physics: Conference Series 2181, no. 1 (2022): 012049. http://dx.doi.org/10.1088/1742-6596/2181/1/012049.

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Abstract Mining cranes play an important role in the transportation and installation of underground equipment. Operating swing angles will seriously affect the operations safety. To ensure the operation safety of mining cranes, this paper firstly established a mathematical model of mining crane hoisting swing, and discussed affecting factors of the oscillation. Then, the orthogonal test method has been carried out, and the optimal and serious working conditions were obtained. Finally, the accuracy of the numerical results have been cross-verified on the ADAMS virtual platform. Results show tha

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24

Murad, Nor Syaza Farhana Mohamad, Muhammad Nizam Kamarudin, and Muhammad Iqbal Zakaria. "Rotor angle deviation regulator to enhance the rotor angle stability of synchronous generators." International Journal of Electrical and Computer Engineering (IJECE) 14, no. 5 (2024): 4879. http://dx.doi.org/10.11591/ijece.v14i5.pp4879-4887.

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Occurrences of disturbance affect the rotor angle operation of a synchronous generator in the generation system of a power system. The disturbance will disrupt the synchronous generator's rotor oscillation and result in rotor angle instability, which will degrade the power system's performance. This paper aims to develop a Lyapunov-based rotor angle deviation regulator for the nonlinear swing equation of a synchronous generator. The proposed regulator is expected to assure asymptotic stability of the rotor angle and robustness to uncertainty. Backstepping and Lyapunov redesign techniques are e

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25

Gavryukov, O. V., and A. M. Klyon. "Optimization of rotary conveyor swing mechanism by reducing inertial loads." Naukovij žurnal «Tehnìka ta energetika» 11, no. 3 (2020): 109–14. http://dx.doi.org/10.31548/machenergy2020.03.109.

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The paper is devoted to solving a practical problem of the crank-rocker swing mechanism optimization of the radial-rotary conveyor, which is used for the distribution of bulk materials along the radial arc. Optimization in this case means the selection of such dimensions of the mechanisms elements, in which the moment of the resistance forces, reduced to the first element and caused mainly inertial loads arising from the swing motion of the platform with a conveyor mounted on it, are minimal. To solve this problem, first of all a kinematic synthesis of the crank-rocker swing mechanism is perfo

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26

Liu, Xin, Chun Dong Zhu, Xi Jiang, and Yi Zhang. "Influence of eccentricity of double eccentricity sleeves on the movements of swing head in rotary forging press." Mechanical Sciences 10, no. 1 (2019): 321–30. http://dx.doi.org/10.5194/ms-10-321-2019.

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Abstract. Rotary forging is an innovative incremental metal forming process, In a rotary forging press with double eccentricity sleeves, the eccentricity of double eccentricity sleeves has significant effects on the movements of swing head. The internal and external eccentricity of the existing rotary forging machine is equal, except circular path, the rotation speed of internal and external eccentric sleeves for the rose curve, spirals curve and straight line is not equal, which will produce the oscillation centrifugal force during the forming process and cause the violent shaking on the mach

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27

Yang, Kang, and Yi Yang. "Simulation of Crack Dynamic Characteristics of Rotor Based on FEM Analysis." Advanced Materials Research 139-141 (October 2010): 2677–80. http://dx.doi.org/10.4028/www.scientific.net/amr.139-141.2677.

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A new simulation method is proposed for dynamic characteristics of cracked rotor based on the finite element analysis, in which the stiffness model has been derived for the exact description of variation rules of cracked shafts. A non-linear dynamic equation is constituted according to stiffness characteristic of cracked-rotor change in time domain. Then the corresponding dynamic equation of the cracked rotor based on FEM analysis is modeled and the numerical simulation is carried out with solutions of high accuracy. At last, the dynamic characteristics of cracked rotor in diverse conditions a

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28

Ding, Kongxing, Faxin Zhu, Qijiang Yang, et al. "Study on dynamic characteristics of bearing-rotor system under ship sway condition." Journal of Physics: Conference Series 2029, no. 1 (2021): 012032. http://dx.doi.org/10.1088/1742-6596/2029/1/012032.

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Abstract On condition that pans and tilts, ship bearing rotor system stability and security, as the change of ship swaying amplitude have influence, based on independent research and development of guangzhou maritime college design of vertical and horizontal swing test bench, simulate the real working condition of ships at sea, in the performance of bearing rotor system under rolling condition were studied. LMS_TEST. LAB modal tester software was used to analyze the dynamic characteristics and collect the experimental data of the bearing rotor system for analysis and research. In this paper, t

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29

Han, Tian, Jie Bai, and Zhong Jun Yin. "Dynamic Simulation Analysis of a Cracked Flexible Rotor Supported on Rotor-Rolling Bearing Based on Virtual Prototyping Technology." Advanced Materials Research 156-157 (October 2010): 293–97. http://dx.doi.org/10.4028/www.scientific.net/amr.156-157.293.

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The complex nonlinear dynamics of a rotor-rolling bearing system with crack is built by dynamic simulation software ADAMS. The transverse vibration response and swing response of rotor are studied on the basis of considering both the nonlinear contact force of rolling bearing and the impact of stiffness caused by crack. Furthermore, the influence factors of transverse vibration response are researched including speed, crack depth, crack angle and eccentricity. The simulation analysis demonstrated that it is an effective method to solve nonlinear dynamics of rotor-rolling bearing system with cr

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30

Raffo, Guilherme V., and Marcelino M. de Almeida. "A Load Transportation Nonlinear Control Strategy Using a Tilt-Rotor UAV." Journal of Advanced Transportation 2018 (June 27, 2018): 1–20. http://dx.doi.org/10.1155/2018/1467040.

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This paper proposes a nonlinear control strategy to solve the trajectory tracking problem of a tilt-rotor Unmanned Aerial Vehicle (UAV) when transporting a suspended load. For the present study, the aim of the control system is to track a desired trajectory of the aircraft with load’s swing-free, even in the presence of external disturbances, parametric uncertainties, unmodeled dynamics, and noisy position measurements with lower sampling frequency than the controller. The whole system modeling is obtained through the Euler-Lagrange formulation considering the dynamics of the tilt-rotor UAV co

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Dekterev, A., A. Dekterev, A. Sentyabov, and S. Filimonov. "IMPLEMENTATION OF A NUMERICAL MODEL FOR THE CYCLOIDAL ROTOR AERODYNAMICS." Eurasian Journal of Mathematical and Computer Applications 13, no. 2 (2025): 43–49. https://doi.org/10.32523/2306-6172-2025-13-2-43-49.

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The paper presents a numerical model and calculations of the aerodynamics of a cycloidal rotor. The cycloidal rotor is a rotor consisting of blades located parallel to the rotor axis, and in addition to rotation, they perform a swing around their own axis, which allows the blade to maintain positive angles of attack and generate lift force in both its upper and lower positions. The numerical model of the flow around the rotor was based on computational fluid dynamics methods and described by the viscous, turbulent incompressible flow of air through the rotor. Discretization of the transfer equ

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XU, JianHua, Chen XIA, GuoPing HUANG, ZhiGuang ZHANG, and Tong ZHOU. "Analysis on the performance of micro swing rotor engine." SCIENTIA SINICA Technologica 47, no. 6 (2017): 596–604. http://dx.doi.org/10.1360/n092016-00426.

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Sofroniou, Anastasia, and Bhairavi Premnath. "A Comprehensive Analysis into the Effects of Quasiperiodicity on the Swing Equation." WSEAS TRANSACTIONS ON APPLIED AND THEORETICAL MECHANICS 18 (December 31, 2023): 299–309. http://dx.doi.org/10.37394/232011.2023.18.28.

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This research studies the case of quasiperiodicity occurring within the swing equation, a fundamental model that characterises the behaviour of rotor of the machine in synchronous generators in electrical systems. Quasiperiodicity is explained by intricate patterns and understanding the stability of power systems. Bifurcation analysis, frequency domain techniques and numerical simulations are employed to study the swing equation in detail. The objective of this study is to provide a comprehensive understanding of the dynamical behaviour of the equation for the case of quasiperiodicity, using b

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34

Wang, Yan Fang, and Qing Ping Zhang. "Study on Virtual Prototype Modeling of Swing Movable Teeth Transmission." Applied Mechanics and Materials 607 (July 2014): 325–28. http://dx.doi.org/10.4028/www.scientific.net/amm.607.325.

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As a new type planetary gear device, swing movable teeth transmission is used to transmit rotary motion and power between two shafts with same axis. It has compact structure, a large range of transmission ratio, strong carrying capacity and widely used. According to the principle of gear meshing, it was analyzed the principle and characteristics of the swing movable teeth transmission. Based on the structure was designed, after the entity modeling of the parts and the virtual assembly of the transmission are established, the virtual prototype modeling of swing movable teeth transmission was ca

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35

Makarov, Pavlo. "The Design Features, Technologies, Modern Quality Evaluating Methods of the Rotor Elements of Energy Equipment." NTU "KhPI" Bulletin: Power and heat engineering processes and equipment, no. 4 (April 30, 2025): 20–28. https://doi.org/10.20998/2078-774x.2023.04.03.

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The presented manuscript is devoted to the consideration of the design features of the elements of power equipment, in particular the rotor and its elements: the spider and its varieties, the rim and poles of the rotor. The analysis of the requirements for the parameters of the rotor depending on the swing moment was carried out. The situation of failure of the turbine regulator directly during load shedding is considered. The parameters of the operational characteristics of the hydraulic unit, which affect the reliability of its operation, were also considered. The manuscript outlines the req

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Du, Chao, Jun Zhang, Dun Lu, Huijie Zhang, and Wanhua Zhao. "A parametric modeling method for the pose-dependent dynamics of bi-rotary milling head." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 232, no. 5 (2016): 797–815. http://dx.doi.org/10.1177/0954405416654599.

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Bi-rotary milling head is one of the core components of five-axis machining center, and its dynamic characteristics directly affect the machining stability and accuracy. During the sculptured surface machining, the bi-rotary milling head exhibits varying dynamics in various machining postures. To facilitate rapid evaluation of the dynamic behavior of the bi-rotary milling head within the whole workspace, this article presents a method for parametrically establishing dynamic equation at different postures. The rotating and swing shafts are treated as rigid bodies. The varying stiffness of the f

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Miyamoto, Nobuhiko, Noriaki Ando, and Kazuyoshi Wada. "Dynamic Simulation of 1-DOF Swing Motion Propulsion Mechanism by Rotary Actuator." Journal of Robotics and Mechatronics 30, no. 6 (2018): 900–909. http://dx.doi.org/10.20965/jrm.2018.p0900.

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In this study, we aimed to develop a mobile robot that can move forward, turn, and move backward using one actuator. We previously proposed 1-DOF swing motion drive mechanisms for a mobile robot that uses linear actuators. This paper proposes a 1-DOF swing motion robot with a rotary actuator for realizing simple design and cost reduction. First, this paper describes a wheel posture switching mechanism. Next, we examine the dynamics modeling of a mobile robot and the wheel posture switching mechanism. Finally, the results are investigated through dynamic simulations to determine the forward-mov

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Yamauchi, Hisashi, Akio Kodama, Tsutomu Hirose, Hiroshi Okano, and Ken-ichiro Yamada. "Performance of VOC Abatement by Thermal Swing Honeycomb Rotor Adsorbers." Industrial & Engineering Chemistry Research 46, no. 12 (2007): 4316–22. http://dx.doi.org/10.1021/ie061184e.

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Jung, Sooyong, and John T. Wen. "Nonlinear Model Predictive Control for the Swing-Up of a Rotary Inverted Pendulum." Journal of Dynamic Systems, Measurement, and Control 126, no. 3 (2004): 666–73. http://dx.doi.org/10.1115/1.1789541.

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This paper presents the experimental implementation of a gradient-based nonlinear model predictive control (NMPC) algorithm to the swing-up control of a rotary inverted pendulum. The key attribute of the NMPC algorithm used here is that it only seeks to reduce the error at the end of the prediction horizon rather than finding the optimal solution. This reduces the computation load and allows real-time implementation. We discuss the implementation strategy and experimental results. In addition to NMPC based swing-up control, we also present results from a gradient based iterative learning contr

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Wang, Li Qian, and Kai Hu. "Control System Design of Rotary Inverted Pendulum." Applied Mechanics and Materials 608-609 (October 2014): 766–69. http://dx.doi.org/10.4028/www.scientific.net/amm.608-609.766.

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In this paper we study the control system of single stage rotary inverted pendulum, and put forwards the controller design based on the core of STM32. In control strategy we use the classical control theory-PID control algorithm, which realizes the closed-loop control of rotating arm and swing rod for the single stage rotary inverted pendulum. The final test results show that the control strategy is effective.

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Kim, Ki-Youn. "Exposure Assessment of Airborne Bacteria Emitted from Swine Manure Composting Plant." Processes 9, no. 8 (2021): 1283. http://dx.doi.org/10.3390/pr9081283.

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This study was performed to investigate the distribution characteristics of airborne bacteria emitted from swine manure composting plants. The types of swine manure composting plants selected for the survey in this study were as follows: screw type, rotary type, and natural dry type. Mean levels of airborne bacteria in swine manure composting plants were 7428 (±1024) CFU m−3 for the screw type, 3246 (±1407) CFU m−3 for the rotary type, and 5232 (±1217) CFU m−3 for the natural dry type, respectively. Based on the results obtained from this study, the swine manure composting plant operated by sc

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Pu, Songcheng, Yumin He, Qijiang Yang, et al. "Study on dynamic characteristics of rotor-bearing system under pitching condition." Journal of Physics: Conference Series 2113, no. 1 (2021): 012021. http://dx.doi.org/10.1088/1742-6596/2113/1/012021.

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Abstract In many cases, ships will encounter special conditions, such as bad sea conditions, and the effect of various disturbance factors, such as wind and waves, will cause low-frequency longitudinal and transverse rocking motion of ships. This would affect the rotor-bearing system of the power plant, which is directly attached to the hull of the ship, and would roll along with the hull in the same longitudinal and transverse motion. This will have a significant impact on the stability of the rotor bearing system of the ship power plant and the safety of the ship. In this paper, a rotor-bear

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Wang, Yan Fang, Lu Ning Liu, and Bo Yang. "Virtual Prototype Modeling and Dynamical Simulation of Swing Movable Teeth Reducer." Advanced Materials Research 466-467 (February 2012): 1300–1304. http://dx.doi.org/10.4028/www.scientific.net/amr.466-467.1300.

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Swing movable teeth reducer is a new type of small teeth difference planetary gear reducer, which is used to transmit the rotary motion and power between two shafts with same axis. It is important to carry on the systematic design and performance simulation of the reducer and seek the optimization design of the products by the virtual prototyping. Based on the study of the principles and characteristics of the swing movable teeth transmission, this study established the virtual prototype and achieved the dynamical simulation of the reducer by CAD/CAE software. The rotate speed and force analys

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Al-Shamaain, Zaid S., Hussein D. Al-Majali, and Bilal H. Al-Majali. "Out-of-Step Detection based on Phasor Measurement Unit." WSEAS TRANSACTIONS ON POWER SYSTEMS 18 (December 31, 2023): 354–63. http://dx.doi.org/10.37394/232016.2023.18.36.

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The electrical power systems operate as a huge, interconnected network that extends across a large area. In the power system, there is an equilibrium between generated power and a load. Any disturbance in the system, such as a fault or a change in load, will lead to imbalance and electromechanical oscillations. As a result, the power flow between two areas varies. This is known as a power swing." Large system disturbances could lead to large rotor angle deviations between groups of generators, resulting in a loss of synchronism between generators or between interconnected systems. This is know

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Posmetyev, Valeryi I., Vadim O. Nikonov, Andrey Yu Manukovskii, Viktor V. Posmetyev, and Igor V. Kazakov. "Modeling of the Rotary Mechanism of the Hydraulic Manipulator of a Timber Truck." Lesnoy Zhurnal (Forestry Journal), no. 5 (October 18, 2024): 143–58. http://dx.doi.org/10.37482/0536-1036-2024-5-143-158.

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The importance of loading and unloading operations in the technological process of wood hauling by timber trucks, as well as the need to improve the design of hydraulic manipulators, are considered. The most rational ways to increase the efficiency of their functioning are given. The disadvantages of traditional designs of hydraulic manipulator rotary mechanisms based on rack-and-pinion gears are presented. An improved design of the crank rotary mechanism of the hydraulic manipulator column from six hydraulic cylinders is proposed. The research methodology is based on the use of mathematical m

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QIN, WEIYANG, and GUANG MENG. "NONLINEAR DYNAMIC RESPONSE AND CHAOS OF A CRACKED ROTOR WITH TWO DISKS." International Journal of Bifurcation and Chaos 13, no. 11 (2003): 3425–36. http://dx.doi.org/10.1142/s021812740300865x.

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In this paper, the nonlinear response and chaos of a cracked rotor with two disks are studied. Considering the breadth of crack in one rotor revolution, the motion equations of the system are derived and then solved. The results show that the rotor response is sensitive to the crack depth, rotating speed, damping ratio and imbalance. When a crack occurs, the frequency of swing vibration is a multiple of rotating speed (NΩ,N=2,3,…). There are three main routes for response to chaos, that is from quasi-periodic to chaos, from quasi-periodic to quasi-periodic bifurcation and then to chaos and the

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Ma, Jian-long, Pei-lin Li, Jian-wen Wang, Liu Yang, and Yan-qi Zhang. "Vibration Characteristics of Roundabout Swing of HAWT Wind Wheel." Shock and Vibration 2016 (2016): 1–10. http://dx.doi.org/10.1155/2016/1037239.

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Modal testing was used to show that the roundabout swing was a natural vibration mode of the wind wheel of a horizontal-axis wind turbine (HAWT). During the vibration, the blade root was simultaneously subjected to bending and rotary shear stresses. A method for indirect testing and determination of the dynamic frequencies of the typical vibrations of the wind wheel was developed, based on the frequency-holding characteristic of each subsignal during the transmission of the multiple mixed-vibration signals. The developed method enabled simple and accurate acquisition of the dynamic frequencies

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Ma, H. K., N. T. Liu, M. H. Hsu, Y. W. Liu, and C. Y. Lin. "Theoretical Study of A Three-Swing Blades Rotary Engine." IOP Conference Series: Materials Science and Engineering 449 (November 29, 2018): 012004. http://dx.doi.org/10.1088/1757-899x/449/1/012004.

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Zhang, Chunwei, and Hao Wang. "Robustness of the Active Rotary Inertia Driver System for Structural Swing Vibration Control Subjected to Multi-Type Hazard Excitations." Applied Sciences 9, no. 20 (2019): 4391. http://dx.doi.org/10.3390/app9204391.

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In traditional structural disaster prevention design, the effects of various disasters on structures are usually considered separately, and the effects of multi-type hazards are rarely considered. The traditional Tuned Mass Damper (TMD) and Active Mass Damper/Driver (AMD) are ineffective for the control of swing vibration. The Tuned Rotary Inertia Damper (TRID) system has the problems of being ineffective under multi-type hazard excitation and exhibiting a limited robustness. The Active Rotary Inertia Driver (ARID) system is proposed to solve these problems and the robustness of such an active

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Pham, Duc-Binh, Quy-Thinh Dao, and Thi-Van-Anh Nguyen. "Optimized Hierarchical Sliding Mode Control for the Swing-up and Stabilization of a Rotary Inverted Pendulum." Automation 5, no. 3 (2024): 282–96. http://dx.doi.org/10.3390/automation5030017.

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This paper presents a study on controlling a rotary inverted pendulum (RIP) system using a hierarchical sliding mode control (HSMC) approach. The objective is to swing up and stabilize the pendulum at a desired position. The proposed HSMC controller addresses the underactuation challenge through a hierarchical structure of sliding surfaces. The particle swarm optimization (PSO) algorithm is used to optimize the controller parameters. Simulations were performed to evaluate the performance of the HSMC controller at different initial pendulum angles, demonstrating its effectiveness in achieving s

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