基于Ansys的连杆机构运动分析.doc
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- 基于 Ansys 连杆机构 运动 分析
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1、基于ANSYS的连杆机构运动分析摘要:随着工业的发展,连杆机构应用越来越广泛,从工业包装行业到航空业,都能够见到连杆机构应用的影子。连杆机构的运动特性参数决定了连杆机构能否满足使用要求。简单的四连杆机构,我们可以根据机械原理与理论力学等理论,虽然通过选取特殊状态能够求得特定时刻的运动特性参数,包括位移、速度、加速度,但是无法求得任意时刻的运动特性参数。而且当连杆数量的增加,求解变得更加复杂。本文另辟蹊跷,利用有限元理论建立了有限元模型,施加载荷以及边界条件,求得了四连杆机构的运动特性参数,为更复杂的连杆机构设计提出了建设性的方法。采用ANSYS中的相关单元对连杆机构进行模型的搭建以及边界处理,
2、进而求的所希望的位移、速度和加速度等随时间变化的相关数据。论文首先建立简单四连杆机构的ANSYS模型进行求解,选取某一特定状态,将结果同解析法进行对比,验证基于ANSYS的方法的可行性。然后通过ANSYS计算某一复杂的连杆机构的运动特性,并对所分析的机构利用机械原理相关理论去分析,为进一步优化做准备。关键词:连杆机构;有限元;解析法;Ansys建模Analysis of linkage mechanism based on ANSYSAbstract:With the development of industry, connecting rod mechanism is used more
3、and more widely, from the industrial packaging industry to the aviation industry, will be able to see the shadow of the connecting rod mechanism application. The motion parameters of linkage mechanism determines the linkage mechanism can meet the use requirements. The four connecting rod mechanism i
4、s simple, we can according to the mechanical principle and theoretical mechanics theory, although the movement characteristic parameters to obtain a special state specific time, including the displacement, velocity, acceleration, movement parameters, but can not find any time. And when increasing th
5、e number of connecting rod, solving more complex.In this paper, another strange, the finite element model is established by using the finite element theory, the loads and boundary conditions, the motion parameters of the four bar linkage obtained, presents a constructive approach to design more comp
6、lex linkages. The relevant unit in the ANSYS model is established and the boundary treatment on the connecting rod mechanism, the relevant data and then the desired displacement, velocity and acceleration variation with time. Firstly, a simple ANSYS model of four bar linkage mechanism to solve, sele
7、ct a particular state, the results were compared with the analytical method, the feasibility of the method validation based on ANSYS. Then the motion characteristics of a complex linkage was calculated by ANSYS, and the analysis of the mechanism of using mechanical theory to analyze, for the further
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