基于有限元法的传动丝杠模态及线性屈曲分析  

Analysis of Linear Buckling and pre-Stress Vibration Modal for Transmission Screw Based on FEM

作　　者：李丹[1] 曾翠华[1] 

机构地区：[1]中国工程物理研究院培训中心,四川绵阳621900

出　　处：《机械》2017年第2期14-16,60,共4页Machinery

基　　金：基金项目:四川省教育厅(2015SJ01)

摘　　要：针对某型号中的关键传动丝杠机构,通过建立有限元模型先进行结构静力分析,然后以静力学计算结果为预应力计算了传动丝杠机构固有频率和振型。为了校核传动机构的稳定性,进行线性屈曲分析求出压杆失稳安全因子,由此,为精密传动丝杠机构的精确设计以及校核传动稳定性的深入研究提供了有益的分析数据和方法。In this paper, the finite element model of screw transmission structure is established and analyzed byusing engineering analysis software ANSYS. Firstly, the structural static equation is calculated and then basedon the static results, the natural frequencies and model shapes of pre-stress screw are also solved. In order tocheck the mechanical stability, it calculated the linear buckling analysis for this transmission system andobtained the bending pole safety factor. From these sources, it provides some useful datum and methods for theexact screw drive body design and verification of linear stability analysis.

关 键 词：有限元方法 模态分析 线性屈曲分析 传动丝杠 

分 类 号：O241.82[理学—计算数学]