基于ANSYS的轴心受压杆屈曲分析

下载后可任意编辑基于 ANSYS 的轴心受压柱屈曲分析吕 辉哈尔滨工程大学 航天与建筑工程学院摘要：为了了解和掌握轴心受压柱特征值屈曲和非线性屈曲差异，以及考虑在屈曲分析中划分不同单元数量对分析结果的影响，选取适当的单元数量，利用有限元软件 ANSYS 对结构进行分析。初步了解特征值屈曲与非线性屈曲所得结果差异。在此基础上进行了多例轴心受压柱的仿真模拟分析，同时考虑不同长细比对屈曲分析结果的影响，掌握了长细比变化对轴心受压柱特征值屈曲和非线性屈曲的计算结果的影响规律。提出工程中应尽量实行非线性屈曲分析，并在分析中实行正确的分析方法。关键词：ANSYS 仿真模拟；轴心受压柱；单元数量；特征值屈曲；非线性屈曲The analysis of axial-compressed column buckling based on ANSYSLv HuiHarbin Engineering University, College of Aerospace and Civil EngineeringAbstracts: The finite element software ANSYS is used to understand and master the diffierences between axial-compressed column buckling and nonlinear buckling, and to consider different numbers of modules`s impact on analysis results in buckling analysis, and choose the appropriate element numebrs. The differences of the results of eigenvalue buckling and nonlinear buckling is preliminary understood. Based that, simulation analysis of a number of cases of axial-compressed column is made, meanwhile different slenderness ratio`s impact on buckling analysis is taken into account, so the impact by variable slenderness ratio on the results of axial-compressed column buckling and nonlinear buckling is unterstood. So the nonlinear buckling analysis in the project is proposed,and the right analysis method should be taken. Key words: ANSYS Simulation; axial-compressed column; the number of element; eigenvalue buckling; nonlinear buckling 1下载后可任意编辑引言：随着计算机的进展人类实现了一个又一个的突破，大大提高了产品开发、设计、分析和制造的效率和产品性能。有限元理论的进展对于建筑专业更是一个飞跃。在结...