Modeling and analysis of friction clutch at a driveline for suppressing car starting judder

Car judder is a kind of back-forth vibration during vehicle starting which caused by the torsional oscillation of the driveline. This paper presents a systematic study on the dynamic response characteristics of the clutch driven disc for suppression of the judder during vehicle starting. Self-excite...

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Bibliographic Details
Published in:Journal of sound and vibration 2018-06, Vol.424, p.335-351
Main Authors: Li, Liping, Lu, Zhaijun, Liu, Xue-Lai, Sun, Tao, Jing, Xingjian, Shangguan, Wen-Bin
Format: Article
Language:English
Subjects:
Automobiles
Car driveline
Clutches
Dynamic models
Dynamic response
Experiments
Friction
Friction clutch
Judder
Multibody systems
Physical properties
Vibration
Vibration analysis
Vibration suppression
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Summary:Car judder is a kind of back-forth vibration during vehicle starting which caused by the torsional oscillation of the driveline. This paper presents a systematic study on the dynamic response characteristics of the clutch driven disc for suppression of the judder during vehicle starting. Self-excited vibration behavior of the clutch driven disc is analyzed based on the developed 4DOF non-linear multi-body dynamic model of the clutch driving process considering stick-slip characteristics and using Karnopp friction models. Physical parameters of a clutch determining the generations of the judder behaviors are discussed and the revised designs of the driven disc of a clutch for suppression of the judder are consequently investigated and validated with experiments for two real cars. •A model for investigating vehicle judder issue related to the clutch driven disc vibration behavior is presented.•The influence of stiffness, damping and moment of inertia of clutch on vehicle judder is investigated.•Experiment is carried out to validate the developed models and the methods for reducing vehicle judder.
ISSN:0022-460X
1095-8568
DOI:10.1016/j.jsv.2018.03.011