摘要
为了快速获得平台悬架静强度与疲劳载荷,本文依据某A级平台5款量产车型试验场道路载荷数据,以前麦弗逊悬架为研究对象,先对轮心载荷幅值进行统计分析,根据应力-强度干涉模型,得到该平台前悬架的强度载荷边界,及其与车辆满载轮荷的G载荷系数。再通过研究5款车型车轮轮心疲劳伪损伤与轮荷的关联关系,得到该平台悬架的疲劳载荷。此方法可快速获得同平台悬架静强度与疲劳载荷,省去实车道路谱采集并提升了工作效率。
In order to quickly acquire the static strength and fatigue load data of a platform suspension,the front Macpherson suspensions of five type volume production vehicles of A-level car platform were selected as the research objects.Firstly,the wheel load amplitude of proving ground test of each type vehicle was statistically analyzed.Secondly,based on the stress-strength interference model,the strength load boundary of the suspension and its wheel load coefficient G were obtained.Thirdly,the fatigue load of the platform suspension was obtained based on the relation between wheel axle Pseudo damage and wheel load.This method can quickly obtain the static strength and fatigue load of the suspension of the same platform,eliminate the real vehicle road spectrum collection and improve the efficiency.
作者
邓小强
胡浩炬
余家皓
郭绍良
DENG Xiaoqiang;HU Haoju;YU Jiahao;GUO Shaoliang(GAC Automotive Research&Development Center,Guangzhou 511434,China)
出处
《机械科学与技术》
CSCD
北大核心
2021年第4期556-561,共6页
Mechanical Science and Technology for Aerospace Engineering
关键词
试验场道路载荷
底盘悬架
静强度载荷
疲劳载荷
proving ground test load
chassis suspension
static strength load
fatigue load
