|Table of Contents|

Influence of subframe elastic change on vehicle performance(PDF)

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2018年04期
Page:
459-
Research Field:
Publishing date:

Info

Title:
Influence of subframe elastic change on vehicle performance
Author(s):
Gao Jin1Ai Tianfu1Li Zhixin2Nie Zhigen1
1.Faculty of Transportation Engineering,Kunming University of Science and Technology,Kunming 650500,China; 2.Department of Mechanical and Electrical Engineering,Kunming Railway Vocational andTechnical College,Kunming 650208,China
Keywords:
subframe elastic modulus modal analysis rigid-flexible coupling vehicle vehicle ride comfort handling stability
PACS:
U461.6
DOI:
10.14177/j.cnki.32-1397n.2018.42.04.011
Abstract:
In order to study the influence of the subframe elastic modulus change on vehicle performance,on the premise of ensuring the strength,the subframe modal analysis of a car is carried out and its flexible file is obtained,and the rigid-flexible coupling vehicle model is assembled. Using a patran software to give the several group subframes different elastic modulus,this paper establishes vehicle models in the ADAMS/Car software with different modulus of elasticity of the subframe. The ride comfort and handling stability are comparatively analysed under the same conditions. The results show that over-raising or reducing the elastic modulus of the subframe can increase the value of the total weighted root mean square acceleration on the floor of the driver’s seat,resulting in a decrease of the ride comfort of the vehicle and a certain negative impact on handling stability. The elastic modulus of the subframe should be maintained within a certain range to obtain the best vehicle performance.

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Last Update: 2018-08-30