Optimization of Dual-Mass Flywheel Parameters Based on a Multicondition Simulation Test

A dual-mass flywheel is an important part of an automobile transmission system whose function is to ensure the smooth transmission of engine power to a gearbox. Vehicle vibration and noise are major indicators of vehicle comfort, while dual-mass flywheel technology can preferably solve the comfort p...

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Bibliographic Details
Published in:Shock and vibration 2022, Vol.2022, p.1-15
Main Authors: Xie, Maoqing, Wang, Shangrui, Yan, Zhengfeng, Wang, Leigang, Tan, Guanhua
Format: Article
Language:English
Subjects:
Angular acceleration
Coils
Comfort
Design
Flywheels
Friction
Gearboxes
Optimization
Powertrain
Simulation
Simulation methods
Stiffness
Torsional vibration
Velocity
Vibration
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Summary:A dual-mass flywheel is an important part of an automobile transmission system whose function is to ensure the smooth transmission of engine power to a gearbox. Vehicle vibration and noise are major indicators of vehicle comfort, while dual-mass flywheel technology can preferably solve the comfort problem. Based on the created torsional vibration model, this paper describes the testing of the torsional characteristics under various conditions with an LMS AMESim simulation. The results show that the noise in the cab is fundamentally below 60 dB. The computational formula for the angular stiffness of an arc coil spring is derived, and then the spring angular stiffness is optimized with arithmetic averaging, which reveals an adjusted angular stiffness of 12.8 Nm/°. Additionally, the requirement for the angular acceleration of the WOT input shaft (i.e., being less than 500 rad/s2) is satisfied for various gears. The test results show that the double-mass flywheel can attain a vibration isolation efficiency of around 85%, which more effectively reduces the transmission vibration and noise and improves the vehicle comfort.
ISSN:1070-9622
1875-9203
DOI:10.1155/2022/2954825