摘要
实际工程结构中经常存在细长杆受压的形式,需要对其进行屈曲分析。为准确计算屈曲临界载荷,利用有限元软件ANSYS对实际工程结构进行线性和非线性屈曲分析。计算结果表明:有限元软件可对工程结构进行线性和非线性屈曲分析;实际结构由于材料弹塑性能,发生屈曲失稳时,有可能发生塑性变形,降低了屈曲临界载荷,非线性计算结果为线性计算结果的95%左右。对结构进行非线性屈曲分析得出更偏于安全的计算结果。
The buckling critical load of thin-long rod is calculated for keeping stable. Buckling analysis of traction rod on locomotive based on ANSYS in this thesis. The result shows： the method of FEM can be used to calculate the critical load of buckling, with linear and non-linear means. Plastic deformation may happen when the structure endures a large load, the buckling critical load decrease and results of non-liner analysis are about 95% than linear results. So, the buckling analysis of the structure with non-liner means will help to improve simulation precision.
出处
《机械》
2008年第7期36-37,共2页
Machinery
