Experimental Study on Torsional Vibration of Dual Mass Flywheel

2012 ◽  
Vol 490-495 ◽  
pp. 2318-2322
Author(s):  
De Min Chen ◽  
Jin Hao Xu ◽  
Xiao Fei Shi ◽  
Yue Yin Ma
Keyword(s):  
Experimental Study ◽  
Torsional Vibration ◽  
Power Transmission ◽  
Transmission System ◽  
Test Bed ◽  
Testing Apparatus ◽  
Damping Effect ◽  
Damping Effects ◽  
Transmission Test

To verify the damping effect of dual mass flywheel, the experiment is designed in use of power-transmission test-bed and rev-torque testing apparatus, and dual mass flywheel of DCT transmission system DQ250 is used to test its damping effect in the experiment. Kinds of conditions of car, like idle condition, run condition, climb condition, are simulated in experiment. The results show that different engine revs and loads, different damping effects of dual mass flywheel. The high engine rev and the more load, the better damping effect of dual mass flywheel.

Parametric Optimisation of Torsional Vibration Dampers for Vehicle Power Transmission System Considering Damping Effect and Lightweight Design

2018 ◽  
Vol 9 (5) ◽  
Author(s):  
X. Tan ◽  
L. Hua ◽  
C. Lu ◽  
C. Yang ◽  
Y. Wang ◽  
...  
Keyword(s):  
Torsional Vibration ◽  
Degrees Of Freedom ◽  
Power Transmission ◽  
Lightweight Design ◽  
Transmission System ◽  
Two Stage ◽  
Damping Effect ◽  
Power Transmission System ◽  
Elastic Couplings ◽  
Vibration Dampers

To reduce the torsional vibration of vehicle power transmission system (VPTS), a torsional vibration model with multiple degrees of freedom (MDOF) of VPTS was established. The scheme of equipping torsional vibration dampers (TVDs) on the driveshaft was employed by the calculation of the forced vibration and the free vibration of the VPTS. The energy method was used to optimize the parameters of single-stage, two-stage parallel and two-stage series TVDs based on the principle that balances the damping effect and lightweight design. On the basis of this, the parameters of the models incorporating TVD and elastic couplings were optimized. Results showed that the proposed method can ensure the damping effects of TVD and realize the lightweight design.

Multi Objective Optimization of Parameters of Torsional Vibration Dampers Considering Damping Effect and Light Weight Design

2019 ◽  
Vol 11 (1) ◽  
Author(s):  
Can Yang ◽  
Xiaodong Tan ◽  
Lin Hua ◽  
Chihua Lu ◽  
Yongliang Wang ◽  
...  
Keyword(s):  
Torsional Vibration ◽  
Degrees Of Freedom ◽  
Power Transmission ◽  
Lightweight Design ◽  
Two Stage ◽  
Damping Effect ◽  
Vibration Model ◽  
Weight Design ◽  
Elastic Couplings ◽  
Vibration Dampers

To reduce the torsional vibration of vehicle power transmission system (VPTS), a torsional vibration model with multiple degrees of freedom (MDOF) of VPTS was established. The scheme of equipping torsional vibration dampers (TVDs) on the drive shaft was employed by the calculation of the forced vibration and the free vibration of the VPTS. The energy method was used to optimize the parameters of single-stage, two-stage parallel, and two-stage series TVDs based on the principle that balances the damping effect and lightweight design. On the basis of this, the parameters of the models incorporating TVD and elastic couplings (ECs) were optimized. Results showed that the proposed method can ensure the damping effects of TVD and realize the lightweight.

Torsional Vibration Suppression of Electric Vehicle Power Transmission System Based on Parameter Optimization and Fuzzy Control

2020 ◽  
Vol 14 ◽  
Author(s):  
Chen Guoqiang ◽  
Yang Zhifei
Keyword(s):  
Parameter Optimization ◽  
Torsional Vibration ◽  
Pid Control ◽  
Power Transmission ◽  
Angular Acceleration ◽  
Transmission System ◽  
Fuzzy Pid ◽  
Motor Shaft ◽  
Fuzzy Pid Control ◽  
Power Transmission System

Background: The torsional vibration of the power transmission system has heavy effect on the ride comfort and safety of the vehicle, which has attracted plenty of research. Therefore, aiming at the torsional vibration problem of the electric vehicle power transmission system, enough study on how to suppress the torsional vibration is clearly of great benefit. Objective: The goal of the work is to explore the new method to suppress the torsional vibration. The main contribution is that the parameter of the power transmission system is optimized and the adaptive fuzzy PID controller is proposed to be utilized and optimized to suppress the torsional vibration. Methods: An optimization objective function including the angular acceleration of the motor shaft, the decelerator and differential assembly and the half shaft is established as the output of the genetic algorithm fitness value. The error combination of square root of the angular acceleration of the motor shaft, the decelerator and differential assembly and the half shaft is adopted as the input of the fuzzy inference controller and the PID controller, which can significantly simplify the fuzzy rule and the structure of the controllers. Results: The proposed method significantly reduces the torque amplitude of the motor shaft, the decelerator and differential assembly, the transmission half shaft, and the overall vibration amplitude. The maximum reduced vibration amplitude change is up to 41.22% and 87.04% respectively after parameter optimization and fuzzy PID control in the example. Conclusion: The comprehensive utilization of parameter optimization and adaptive fuzzy PID control can successfully suppress the torsional vibration phenomenon of the power transmission system, and the torsional amplitude of the angular velocity and angular acceleration decreases significantly. Therefore, the vehicle noise can be reduced and the stability can be improved. The study lays a foundation for solving the torsional vibration problem and the mechanical optimal design of the vehicle transmission system.

Experimental study on an S-band near-field microwave magnetron power transmission system on hundred-watt level

2015 ◽  
Vol 102 (11) ◽  
pp. 1818-1830 ◽  
Author(s):  
Biao Zhang ◽  
Wan Jiang ◽  
Yang Yang ◽  
Chengyang Yu ◽  
Kama Huang ◽  
...  
Keyword(s):  
Experimental Study ◽  
Power Transmission ◽  
Near Field ◽  
Transmission System ◽  
Power Transmission System

Analytical procedures for torsional vibration analysis of ship power transmission system

2019 ◽  
Vol 178 ◽  
pp. 227-244 ◽  
Author(s):  
Ivo Senjanović ◽  
Neven Hadžić ◽  
Lech Murawski ◽  
Nikola Vladimir ◽  
Neven Alujević ◽  
...  
Keyword(s):  
Torsional Vibration ◽  
Vibration Analysis ◽  
Power Transmission ◽  
Transmission System ◽  
Power Transmission System ◽  
Analytical Procedures

Design and Simulation Study of a New Type of Dual Mass Flywheel

2012 ◽  
Vol 184-185 ◽  
pp. 130-133 ◽  
Author(s):  
De Min Chen ◽  
Xiao Fei Shi ◽  
Guo Qiang Liu
Keyword(s):  
Simulation Study ◽  
Torsional Vibration ◽  
Transmission System ◽  
Design Parameters ◽  
Heavy Vehicle ◽  
Simulation Research ◽  
Main Design ◽  
Damping Effect ◽  
New Type ◽  
Dynamics Models

In order to research the influence of the main parameters of Dual Mass Flywheel to the torsional vibration of the transmission system, one heavy vehicle was taken as the target vehicle and its dynamics models of transmission system in the idle conditions and the driving conditions were established by ADAMS.Then the main design parameters of Dual Mass Flywheel were gained through simulation and optimization.Finally,a new Dual Mass Flywheel,whose vibrating springs are distributed on both sides of the damping disc,was designed and its damping effect was studied through simulation research.

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