Comparison of Rubber Bushing Models for loads analysis Huazhong University of Science and Tech

Format:

Book

Conference/Event

Author/Creator:

Yue, Kai, author.

Contributor:

Xu, Peijun

Zhang, Yunqing

Conference Name:

SAE WCX Digital Summit (2021-04-13 : Live Online, Pennsylvania, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2021

Summary:

Rubber bushing is the key component to suppress the high frequency vibration in suspension system, accurate constitutive model of rubber bushing should capture the amplitude and frequency dependency. However, the traditional rubber bushing models in Adams generally apply Kelvin-Voigt model which only considers inaccurate frequency-dependence and ignores amplitude-dependence. Therefore, it is necessary to establish a more accurate rubber model to increase the reliability of vehicle system simulation. In this paper, three constitutive models of rubber bushing are applied in vehicle system simulation, including: (1) Model 1: Kelvin-Voigt model; (2) Model 2: Kelvin-Voigt model combined with Berg's friction and nonlinear stiffness; (3) Model 3: Fractional derivative Kelvin-Voigt model combined with Berg's friction and nonlinear stiffness. To evaluate the model parameter and suitable frequency range, the quasi-static and dynamic test have been performed. Comparing with the testing result, the fractional derivative model has the minimum error in these three models. Then three models are used to replace the rubber properties file of vehicle model in Adams by Fortran subroutines. According to the vehicle dynamic simulation, the influence of different rubber bushing models on vehicle performance is compared and analyzed

Notes:

Vendor supplied data

Publisher Number:

2021-01-0317

Access Restriction:

Restricted for use by site license