摘要
由于实际荷载较高,农用挂车气动制动系统的性能直接关系到车辆的行车安全性,对其进行优化设计具有重要的意义。弹簧是农用挂车刹车系统四路保护阀使用的核心器件之一,对其具体特性的研究对整套制动系统性能的研究有着极为重要的作用。为了研究弹簧的动力学性能,提出了一种基于ANSYS的农用挂车气压制动系统设计与仿真优化方案,并建立了有限元分析的数学模型;采用Pro/E软件设计了弹簧的实际三维体并对其网格进行了划分;最后,根据挂车气压制动刹车系统的实际作业状态施加了弹簧约束和力学载荷,对弹簧的气动性能进行了有限元分析。仿真分析结果表明:采用ANSYS分析不仅可以得到应力和变形云图,还可以将预紧弹簧工作过程生动直观地表达出来,为农业挂车气压制动系统的研究提供了可靠的数据。
As the actual load is higher,the performance of the agricultural trailer pneumatic braking system is directly related to the vehicle traffic safety,and it is of great significance to optimize the design of the vehicle. Spring is one of the core devices used in the 4 way protection valve of agricultural trailer brake system. The research on its specific characteristics is of great help to the study of the performance of the whole braking system. In order to study the dynamic performance of the spring,it presents a design of agricultural trailer air brake system and simulation optimization scheme based on ANSYS,and establishes a mathematical model of finite element analysis,designs the three-dimensional body spring. And the grid was divided by using Pro/E software. According to the trailer air brake system,the actual operating state puts spring constraint and mechanical load,the spring aerodynamic performance of a finite element analysis. By analyzing the simulation results shows that the ANSYS analysis can not only obtain the stress and deformation nephogram,but also express the preloaded spring working process vivid and intuitive,which provides reliable data for the research of agricultural trailer air brake system.
出处
《农机化研究》
北大核心
2018年第6期252-256,共5页
Journal of Agricultural Mechanization Research
基金
吉林省科技发展计划项目青年科研基金项目(20160520070 JH)
