基于模态分析的前副车架轻量化  

Lightweight of front subframe based on modal analysis

作　　者：陈东[1,2] 邓欣[1,2] 邓磊[1,2] 

机构地区：[1]江铃汽车股份有限公司产品开发技术中心,南昌330052 [2]江西省汽车噪声与振动重点实验室,南昌330052

出　　处：《长沙理工大学学报（自然科学版）》2017年第1期78-83,共6页Journal of Changsha University of Science and Technology:Natural Science

摘　　要：基于工程实际,在保证模态频率满足要求的前提下,为达到副车架轻量化的目的,建立了前副车架有限元模型,并对前副车架模态频率进行了仿真分析和试验测试。仿真分析的结果与试验所得结果相当,验证了有限元模型的正确性。以模态频率为约束条件,以副车架质量最小为目标,对副车架料厚进行了优化,并最终成功将副车架减重了13.4%。In order to reduce weight of the front subframe, based on engineering practice and ensuring the modal frequency of front subframe can meet engineering requirement,the front subframe finite element analysis model has been established. Modal frequency of the front subframe is simulated and tested, and the modal result simulated by FEA software is similar to that obtained by tests, which also verify the FEA model is credible. In order to reduce weight of the front subframe,the thickness of front subframe is optimized with the modal frequency as constrain condition and the minimum weight of front frame as target, the weight of front subframe is successfully reduced by 13.4% . This study about lightweight of front subframe has certain reference value in engineering practice.

关 键 词：前副车架 有限元分析 模态频率 轻量化 

分 类 号：U462[机械工程—车辆工程] TH122[交通运输工程—载运工具运用工程]