Dynamic Modeling and Simulation of the Basic Shaft Bearingless Motors

2013 ◽  
Vol 275-277 ◽  
pp. 2451-2454
Author(s):  
Qiu Yue Chen ◽  
Li Zeng
Keyword(s):  
Dynamic Modeling ◽  
Control Strategy ◽  
Performance Indicators ◽  
Coupling Model ◽  
Tracking Accuracy ◽  
Dynamic Coupling ◽  
Bearingless Motor ◽  
Static Performance ◽  
Simulation Results ◽  
Dynamic Coupling Model

A dynamic coupling model of the bearingless motor is established. This test does some simulations of motor displacement, no load speed and tracking accuracy under certain performance indicators. Analysis and simulation results show that the system has a control strategy of high precision as well as good dynamic and static performance.

scholarly journals Sensitivity analysis on a dynamic coupling model for V2V communication distance control

2021 ◽  
Vol 184 ◽  
pp. 372-379
Author(s):  
Darko Frtunik ◽  
Amolika Sinha ◽  
Hanna Grzybowska ◽  
Navreet Virdi ◽  
S. Travis Waller ◽  
...  
Keyword(s):  
Sensitivity Analysis ◽  
Coupling Model ◽  
Dynamic Coupling ◽  
V2v Communication ◽  
Distance Control ◽  
Communication Distance ◽  
Dynamic Coupling Model

Dynamic-coupling model: Interpretation of temperature-, dopant-concentration-, and coverage-dependent Schottky-barrier formation

1990 ◽  
Vol 41 (5) ◽  
pp. 2800-2812 ◽  
Author(s):  
C. M. Aldao ◽  
I. M. Vitomirov ◽  
G. D. Waddill ◽  
Steven G. Anderson ◽  
J. H. Weaver
Keyword(s):  
Schottky Barrier ◽  
Dopant Concentration ◽  
Coupling Model ◽  
Dynamic Coupling ◽  
Model Interpretation ◽  
Barrier Formation ◽  
Dynamic Coupling Model

scholarly journals Research on the Vibration Characteristics of a Track’s Structure Considering the Viscoelastic Properties of Recycled Composite Sleepers

2020 ◽  
Vol 11 (1) ◽  
pp. 150
Author(s):  
Zhenhang Zhao ◽  
Ying Gao ◽  
Chenghui Li
Keyword(s):  
Viscoelastic Properties ◽  
Power Flow ◽  
Flow Distribution ◽  
Coupling Model ◽  
Vibration Characteristics ◽  
Dynamic Coupling ◽  
Ballasted Track ◽  
Vibration Process ◽  
Reduction Effect ◽  
Dynamic Coupling Model

In order to investigate the vibration characteristics of a composite sleeper-ballasted track and provide a basis for further popularization, a vehicle–track dynamic coupling model is established and the viscoelastic properties of the composite sleeper are considered. The power flow method is employed to reveal the power flow distribution characteristics of the composite sleeper. The results show that the viscoelastic properties of the composite sleeper have little influence on the rail power and have a greater influence on the power flow of the sleeper and ballast bed in some frequency ranges. The viscoelastic properties of the composite sleeper can effectively improve the calculation accuracy of the track structure’s power flow. Compared with the type-III pre-stressed concrete sleepers widely used in China, composite sleepers consume more energy in the vibration process due to their own physical characteristics, which reduces the power flow transmitted downward and relieves vibration on the ballast bed, especially in the ranges of 80–125 Hz and 250–400 Hz. The temperature change mainly affects the power flow of the composite sleeper in the frequency range above 50 Hz. As the temperature increases, the modulus of the composite sleeper decreases and the vibration reduction effect of the ballast bed is improved.

Optimal Control of Error Performance of Planar 3-DOF Parallel Mechanism

2011 ◽  
Vol 338 ◽  
pp. 343-349
Author(s):  
Kai Jiang Lu ◽  
Jun Ping Shi ◽  
Feng Tao Zhang
Keyword(s):  
Optimal Control ◽  
Control Strategy ◽  
Parallel Mechanism ◽  
System Response ◽  
Global Motion ◽  
Tracking Accuracy ◽  
Error Performance ◽  
Optimal Control Strategy ◽  
Control Of Error ◽  
Simulation Results

Abstract. The optimal control strategy is introduced to improve the motion accuracy of planar 3-DOF parallel mechanism. The optimal control of error performance of mechanism is achieved by structuring and quantizing the quadratic form index of the error performance, and taking into account both the system response and energy control in state space, so we study the problem which can be boil down to solve two-point boundary value problem of differential equation. The simulation results show that the actual motion of mechanism keep the better tracking accuracy with the global motion while dynamics parameters is changing, and the controller is ease to accomplishment in the industrial due to the simply structure and the stable change of control energy.

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