scholarly journals Analysis and suppression of torsional vibration in electromechanical coupling transmission system of high-speed train

2020 ◽  
Vol 2020 (14) ◽  
pp. 980-984
Author(s):  
Zhao Jing-Bo ◽  
Yang Chao-Yue ◽  
Pu Chao-Yi
Keyword(s):  
Torsional Vibration ◽  
High Speed ◽  
Electromechanical Coupling ◽  
Transmission System ◽  
High Speed Train

scholarly journals Nonlinear Torsional Vibration Analysis and Control of Semidirect Electromechanical Coupling Transmission System in Shearer

2019 ◽  
Vol 2019 ◽  
pp. 1-12
Author(s):  
Song Jiang ◽  
Wei Li ◽  
Lianchao Sheng ◽  
Jiajun Chen ◽  
Min Li
Keyword(s):  
Hopf Bifurcation ◽  
Torsional Vibration ◽  
Electromechanical Coupling ◽  
High Reliability ◽  
Permanent Magnet Synchronous Motor ◽  
Nonlinear Damping ◽  
Transmission System ◽  
Concentrated Mass ◽  
Mass Model ◽  
Hurwitz Stability

The nonlinear torsional vibration and instability oscillation caused by nonlinear damping in the shearer electromechanical coupling cutting transmission system in shearer driven by the permanent magnet synchronous motor (PMSM) is investigated in this paper. The electromechanical coupling transmission system in the shearer is equivalent to a concentrated mass model for the purpose of establishing the system dynamic model by the Lagrange–Maxwell equation. Then, the Routh–Hurwitz criterion is used to determine the torsional vibration critical point and stability region for the Hopf bifurcation for the cutting transmission system. According to the Routh–Hurwitz stability criterion, the Hopf bifurcation type and the effect of the supercritical Hopf bifurcation in the torsional vibration of the cutting transmission system are analyzed. Furthermore, based on the washout filter, the Hopf bifurcation controller is designed for suppressing the transmission system’s large vibration amplitude and unstable oscillation. In addition, the influences of the linear gain and nonlinear gain on the bifurcation point and the limit cycle amplitude are discussed. Finally, the numerical simulation results indicate the effectiveness of the designed controller. The research achievements can provide a theoretical basis for design or optimize the cutting transmission system of high-reliability shearer driven by PMSM.

Torsional vibration analysis of the gear transmission system of high-speed trains with wheel defects

2019 ◽  
Vol 234 (2) ◽  
pp. 123-133 ◽  
Author(s):  
Zhiwei Wang ◽  
Yao Cheng ◽  
Guiming Mei ◽  
Weihua Zhang ◽  
Guanhua Huang ◽  
...  
Keyword(s):  
Torsional Vibration ◽  
High Speed ◽  
Transmission System ◽  
Gear Transmission ◽  
Dynamics Model ◽  
Gear Mesh ◽  
Gear Transmission System ◽  
High Speed Trains ◽  
Polygonal Wear ◽  
Wheel Flat

The gear transmission system of a high-speed train is the key component, which delivers the traction torque from the motor to the wheelset. It couples with the vehicle system via the suspension system, gear meshing and the wheel–rail interface. The dynamic performance of the transmission system directly affects the operational reliability or even the running safety of high-speed trains. In this study, the effects of wheel polygonalisation and wheel flat on the dynamic responses of the transmission system are investigated through simulations of a novel vehicle dynamics model. This model integrates the flexible gearbox housing, the time-varying mesh stiffness and the nonlinear gear tooth backlash, and the track irregularities to obtain more realistic responses of the traction transmission systems in a vehicle vibration environment, from motors to wheelsets, under the effects of the wheel flat and polygonal wear. The field experimental tests are implemented for a vehicle running along a main high-speed railway line in China. Subsequently, the developed dynamics model is validated with good agreement between the experimental and the theoretical results. The calculated results revealed that wheel flat and wheel polygonal wear caused a high-frequency fluctuation of both the longitudinal creep force and the gear mesh force, causing a violent and complex torsional vibration of the gear transmission system. Moreover, the flexible deformation of the gearbox housing, especially its resonance due to the wheel polygonal wear, contributed to the torsional vibration of the gear transmission system.

scholarly journals Coupled dynamic behaviour of a transmission system with gear eccentricities for a high-speed train

2020 ◽  
pp. 1-22
Author(s):  
Zhiwei Wang ◽  
Zhonghui Yin ◽  
Ruicheng Wang ◽  
Yao Cheng ◽  
Paul Allen ◽  
...  
Keyword(s):  
High Speed ◽  
Dynamic Behaviour ◽  
Transmission System ◽  
High Speed Train

The Analysis and Calculation of the Spiral Bevel Gears Transmission System of High-Speed Train

2014 ◽  
Vol 490-491 ◽  
pp. 1126-1133
Author(s):  
Chen Tao ◽  
Zhe Ming Chen ◽  
Ze Hao Huang ◽  
Chen Long
Keyword(s):  
High Speed ◽  
Transmission System ◽  
Bevel Gear ◽  
Operating Conditions ◽  
Spiral Bevel Gear ◽  
High Speed Train ◽  
Bevel Gears ◽  
Gear Transmission System ◽  
High Speed Trains ◽  
Spiral Bevel

The overview and analysis of the structure of spiral bevel gear transmission system was presented . The characteristics of transmission and torque of the system were analysis and calculated . Based on high-speed trains operating conditions. The issue that tooth contact of the positive invertion of spiral bevel gear was analysis. The consistency of the positive invertion was desirable. The error curve of the transmission was downward consistently and the curves which were adjacent intersect. The less of the vibration of bridge contacts won`t be happened.

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