摘要
以某款A级乘用车为研究对象,设计开发出一套考虑了白车身柔性和车身浮动的悬架试验台夹具。探索性地将白车身扭转刚度线性化,引入虚拟线刚度的概念,导出1/4车身虚拟线刚度的计算公式,建立了能充分体现白车身刚度的3自由度振动模型。最后基于虚拟样机技术验证了其正确性。研究成果为悬架试验台的开发提供技术参考。
A set of suspension test bench fixtures is designed for an A-class passenger car with consideration of the flexibility and floating feature of car body.As an exploration,the torsional stiffness of body-in-white is linearized with a concept of virtual ＇linear stiffness＇ introduced.The formula of the virtual linear stiffness of 1/4 body is derived and based on this a 3 DOF vibration model is built,which fully reflects the stiffness of body-in-white.Finally the correctness of the model is verified with virtual prototyping technology.The research provides a technical reference for the development of suspension test bench.
出处
《汽车工程》
EI
CSCD
北大核心
2015年第8期964-969,共6页
Automotive Engineering
基金
国家"十二五"863重大项目(2012AA110701)
国家自然科学基金(50875173&51375313)
上海市科委基础研究重点项目(13JC1408500&11140502000)
上海汽车工业科技发展基金(1104)
上海市教委重点学科建设项目(J50503)
上海市研究生创新基金项目(JWCXSL1302)资助
关键词
悬架试验台
夹具开发
虚拟线刚度
3自由度振动模型
虚拟样机技术
suspension test bench
fixtures development
virtual linear stiffness
3 DOF vibration model
virtual prototyping technology
