DURABILITY PREDICTION FOR AUTOMOBILE ALUMINUM FRONT SUBFRAME USING NONLINEAR MODELS IN VIRTUAL TEST SIMULATIONS

被引：14

作者：

Nam, J. S. ^{[1
]}

Shin, H. W. ^{[2
]}

Choi, G. J. ^{[3
]}

机构：

[1] Kunsan Natl Univ, Dept Mech Engn, Gunsan Si 573701, Jeonbuk, South Korea

[2] Kunsan Automot Technol Innovat Ctr, Gunsan Si 573701, Jeonbuk, South Korea

[3] Kunsan Natl Univ, Sch Mech & Automot Engn, Gunsan Si 573701, Jeonbuk, South Korea

来源：

INTERNATIONAL JOURNAL OF AUTOMOTIVE TECHNOLOGY | 2014年 / 15卷 / 04期

关键词：

Durability life prediction; Virtual test simulation; Flexible multibody dynamics; Nonlinear suspension components model; Front aluminum subframe;

D O I：

10.1007/s12239-014-0062-2

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This research work presents fatigue life evaluation techniques for an automotive vehicle aluminum front subframe using virtual test simulation technology with nonlinear suspension components model. The technology was used for improving the accuracy of the polynomial model used in conventional analysis. The proposed nonlinear suspension components models were developed using direct approach. The effects of the nonlinear elements on the prediction of the fatigue life were also analyzed. Actual aluminum front subframe was tested using half-car road test simulator to verify the accuracy of the models. It was found that the proposed nonlinear models yield more accurate results than conventional polynomial models. The proposed virtual test simulation technology with nonlinear suspension components model can be used to predict fatigue life for vehicle chassis structures more accurately.

引用

页码：593 / 601

页数：9