基于有限元的连杆运动与静力分析
陈立威1，范纪华1，范东祥1，许侃雯1，王琪1,2，方海峰1,2
（1.江苏科技大学 苏州理工学院，江苏 张家港 215600；2.江苏科技大学 机电与汽车工程学院，江苏 张家港 215600）
摘要：以某型号汽车连杆作为研究对象，根据其在不同工况下的具体工作情况，分析得出连杆的运动参数及其具体的求解公式；讨论连杆在工作时的主要静载荷——拉伸载荷与压缩载荷，推导并求解出其在工作过程中的受力方程。利用UG建立起连杆的三维模型，导入到ANSYS Workbench中进行静应力的有限元分析，依据其结果可知，拉应力与压应力中压应力对连杆的影响是最大的，也就是说在压缩工况下连杆有最大的应力集中和变形，同时这些的应力集中与变形均发生在连杆的小头部位。
关键词：连杆；静力分析；拉伸载荷；压缩载荷
中图分类号：U464.133+.2 文献标志码：A doi：10.3969/j.issn.1006-0316.2016.12.001
文章编号：1006－0316 (2016) 12－0001－06
Analysis of Connecting Rod and Static Based on the Finite Element Analysis
CHEN Liwei1，FAN Jihua1，FAN Dongxiang1，XU Kanwen1，WANG Qi1,2，FANG Haifeng1,2
( 1.Suzhou Institute of Technology, Jiangsu University of Science and Technology, Zhangjiagang 215600, China; 2.Mechatronics and Automotive Engineering school, Jiangsu University of Science and Technology, Zhangjiagang 215600, China )
Abstract：This paper takes a certain type of automotive connecting road as the research object, according to its work in concrete under different working conditions, explore the connecting rod movement parameters and their specific formulas; Discuss the main static load of the connecting road at work: the tensile and compressive load, and deduce the stress equation in the process of solving its at work .Using UG to establish a three dimensional model of connecting rod, imported into the static stress finite element analysis in ANSYS Workbench, according to the result: the tensile stress and compressive stress medium voltage stress on the influence of the connecting rod is one of the biggest, that is to say, in the compression under the condition of connecting rod has the largest stress concentration and deformation, and at the same time, the stress concentration and deformation occurred in the same part of the connecting rod. In the compression under the condition of connecting rod has the largest stress concentration and deformation, and at the same time, the stress concentration and deformation occurred in the small part of the connecting rod.
Key words：connecting rod；static analysis；tensile load；compression load
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收稿日期：2016－05－27
基金项目：江苏省高校自然科学基金面上项目（15KJB130003）；张家港江苏科技大学产业技术研究院质量提升项目——热锻连杆模具寿命提升及汽车连杆轻量化优化设计
作者简介：陈立威（1993－），男，江苏盐城人，本科生，主要研究方向为机械设计制造及其自动化。通信作者：范纪华（1985－），男，江苏张家港人，工学博士，讲师，主要研究方向为多体系统动力学和控制、撞击动力学以及力学在机械、航空、航天、兵器等重大工程领域中的应用。
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