Dynamic Performance of Heavy-haul Electric Locomotive Considering Effect of Gear Transmission System

2018 ◽  
Vol 54 (6) ◽  
pp. 48
Author(s):  
Zichao WANG
Keyword(s):  
Dynamic Performance ◽  
Transmission System ◽  
Gear Transmission ◽  
Electric Locomotive ◽  
Gear Transmission System ◽  
Heavy Haul

Dynamic Simulation Analysis of Asymmetric Involute Gear Drive System

2012 ◽  
Vol 215-216 ◽  
pp. 974-977 ◽  
Author(s):  
Li Ming Lian ◽  
Gui Min Liu
Keyword(s):  
Dynamic Simulation ◽  
Dynamic Characteristics ◽  
Simulation Analysis ◽  
Dynamic Performance ◽  
Transmission System ◽  
Drive System ◽  
Gear Transmission ◽  
Gear Drive ◽  
Involute Gear ◽  
Gear Transmission System

The dynamic performance of asymmetric involute gear transmission system is analyzed by the MSC.ADAMS software during the paper. By comparative analyzed with the traditional dynamic characteristics of symmetrical involute straight gear transmission, it can be summarized that the asymmetric involute gear transmission system has better vibration characteristics in the course of transmission.

Power Turret the Dynamics Simulation Analysis of Power Turret

2012 ◽  
Vol 198-199 ◽  
pp. 133-136
Author(s):  
Shu Xia Sun ◽  
Xiang Jun Zhu ◽  
Ming Ming Wang
Keyword(s):  
Machine Tool ◽  
Dynamic Performance ◽  
Transmission System ◽  
Vibration Response ◽  
Contact Dynamics ◽  
Gear Transmission ◽  
Dynamics Simulation ◽  
Nc Machine Tool ◽  
Gear Transmission System ◽  
Nc Machine

The dynamic performance of the CNC turret affect the cutting capability and cutting efficiency of the NC machine tool directly, embody the core level of the design and manufacture of the NC machine tool. However, the dynamic performance of the CNC turret mostly decided by the dynamic performance of the power transmission system of the power turret. This passage use Pro/E to set the accurate model of the gears and the CAD model of the gear transmission system and based on this to constitute the ADAMS model of virtual prototype. On the many-body contact dynamics theory basis, dynamic describes the process of the mesh of the gears, work out the dynamic meshing force under the given input rotating speed and loading, and the vibration response of the gear system. The simulation result disclosure the meshing shock excitation and periodical fluctuation phenomena arose by stiffness excitation of the gear transmission. Analyses and pick-up the radial vibration response of the output gear of the gear transmission system as the feasibility analysis data.

Study on Dynamic Characteristics of Wind Turbine Planetary Gear System Coupled with Bearing at Varying Wind Speed

2011 ◽  
Vol 86 ◽  
pp. 653-657
Author(s):  
Zhi Gang Zhou ◽  
Da Tong Qin ◽  
Jun Yang ◽  
Hui Tao Chen
Keyword(s):  
Wind Speed ◽  
Wind Turbine ◽  
Dynamic Performance ◽  
Planetary Gear ◽  
Wind Load ◽  
Transmission System ◽  
Gear Transmission ◽  
Support Vector ◽  
Parameter Method ◽  
Gear Transmission System

The sparse least squares support vector machines (SL-SVM) is used to simulate wind speed of real wind field, and time-varying wind load caused by stochastic wind speed is then obtained. A coupling gear-bearing dynamical model of planetary gear transmission system of wind turbine is built using lumped-parameter method, in which the varying wind load, time-vary mesh stiffness of gear pair and time-vary stiffness of rolling element bearing are taken into account. Numerical method is used to simulate the dynamic performance of planetary gear transmission of multibrid technology wind turbine (MTWT) with 1.5MW rated power, the vibration displacement responses of gears and dynamic meshing forces of gear pairs as well as nonlinear bearing forces in the transmission system are obtained, and the influence rules of external varying wind load on the vibration characteristics of transmission system of wind turbine are studied. The research results lay a foundation for dynamic performance optimization and reliability design of gear transmission system of wind turbine.

Dynamic Performance of Gear Transmission System and Modification Optimization of Electric Vehicle Gearbox

2020 ◽  
Vol 103 (sp1) ◽  
pp. 366
Author(s):  
Qingyong Zhang ◽  
Yaru Wang ◽  
Weiping Lin ◽  
Xingjian Wu ◽  
Yongjun Luo
Keyword(s):  
Electric Vehicle ◽  
Dynamic Performance ◽  
Transmission System ◽  
Gear Transmission ◽  
Gear Transmission System

scholarly journals Dynamic characteristics analysis of planetary gear system with internal and external excitation under turbulent wind load

2021 ◽  
Vol 104 (3) ◽  
pp. 003685042110356
Author(s):  
Hexu Yang ◽  
Xiaopeng Li ◽  
Jinchi Xu ◽  
Zemin Yang ◽  
Renzhen Chen
Keyword(s):  
Wind Speed ◽  
Wind Turbine ◽  
Nonlinear Dynamic ◽  
Planetary Gear ◽  
Wind Load ◽  
Transmission System ◽  
Gear Transmission ◽  
Stiffness Ratio ◽  
Gear Transmission System ◽  
Planetary Gear System

According to the working characteristics of a 1.5 MW wind turbine planetary gear system under complex and random wind load, a two-parameter Weibull distribution model is used to describe the distribution of random wind speed, and the time-varying load caused by random wind speed is obtained. The nonlinear dynamic model of planetary gear transmission system is established by using the lumped parameter method, and the relative relations among various components are derived by using Lagrange method. Then, the relative relationship between the components is solved by Runge Kutta method. Considering the influence of random load and stiffness ratio on the planetary gear transmission system, the nonlinear dynamic response of cyclic load and random wind load on the transmission system is analyzed. The analysis results show that the variation of the stiffness ratio makes the planetary gear have abundant nonlinear dynamics behavior and the planetary gear can get rid of chaos and enter into stable periodic motion by changing the stiffness ratio properly on the premise of ensuring transmission efficiency. For the variable pitch wind turbine, the random change of external load increases the instability of the system.

Analysis on Vibration Response of Gear Transmission System

2011 ◽  
Vol 65 ◽  
pp. 177-181
Author(s):  
Jia Hong Zheng ◽  
Min Li
Keyword(s):  
Transmission System ◽  
Vibration Response ◽  
Gear Transmission ◽  
Wind Generators ◽  
Gear Transmission System ◽  
Internal Incentive ◽  
External Incentive

The inherent characteristics of the wind generators growth gearbox were solved, then the reasons which caused the gear transmission system generating dynamic incentive was analyzed, and also internal incentive and external incentive were given to 2MW wind generators gear transmission system quantitatively. On the basis of these, 2MW wind generators growth gearbox system’s vibration response caused under internal incentive and external incentive was solved and analyzed.

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