摘要
以某无轨胶轮车车架为研究对象,首先建立整车动力学仿真模型,运用多体动力学软件分析了几种工况下车架所承受的动载荷特性,然后根据仿真得出的最恶劣工况施加载荷和边界条件,建立车架有限元模型,采用有限元方法分析车架应力,最后根据应力结果改进车架结构设计。结果表明,改进后的车架结构可同时满足强度和轻量化要求。结合动力学仿真的有限元分析其结果更接近实际,可为无轨胶轮车车架结构设计提供理论依据。
The frame of a trackless rubber-tyred vehicle is investigated. Firstly, the dynamic simulating model of the whole vehicle is built, and the dynamic load character on the frame is analyzed under several working conditions by multi-body dynamic software. Then, the finite element model of the frame is built based on the simulating boundary condition and load data under the most formidable work situation, and the stress of the frame is analyzed by finite element method. Finally, the structure design of the frame is improved according to the stress analysis result. The results show that the improved frame structure is simultaneously consonant with the requirements of the strength and light weight. The finite element analysis result with the dynamic simulating association is more close to the actual, and could provide the theoretical basis for designing the frame structure of the trackless rubber-tyred vehicle frame.
出处
《有色金属工程》
CAS
CSCD
北大核心
2015年第5期67-70,共4页
Nonferrous Metals Engineering
基金
中煤科工集团太原研究院科学技术项目(M2014-06)
关键词
车架
动力学仿真
动载荷特性
应力
改进设计
frame
dynamic simulating
dynamic load character
stress
structure improvement
