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所在平台: Udemy |
课程主页: https://www.udemy.com/course/ansys-linear-and-nonlinear-buckling-applications/
课程评论：没有评论
Coursera 课程：Ansys - 线性与非线性屈曲应用 本课程专注于 Ansys 软件在处理线性屈曲和非线性屈曲问题中的应用。课程以 2021 R1 版本为基础，重点讲解了线性屈曲、非线性屈曲、后屈曲分析以及弧长法。 课程内容分为四个主要部分： 1. **线性屈曲 (Linear Buckling)**: * 介绍屈曲现象及其重要性。 * 讲解特征值屈曲（Eigenvalue Buckling）的概念，推导临界载荷的公式和计算方法。 * 分析线性屈曲的优缺点，以及为何需要进行非线性屈曲分析。 * 探讨如何利用线性屈曲的快速计算优势进行基于屈曲的设计。 2. **基于非线性的线性屈曲分析 (Nonlinear-based Linear Buckling Analysis)**: * 介绍如何通过非线性预处理来提高线性屈曲分析的准确性。 * 学习如何执行非线性静态分析，并基于其结果进行特征值屈曲分析。 * 重新学习临界载荷的公式和计算，因为这些会随着非线性分析而改变。 3. **非线性屈曲分析 (Nonlinear Buckling Analysis)**: * 深入介绍非线性屈曲分析，指出其需要更多的经验和计算时间，相对复杂。 * 学习非线性屈曲分析的设置以及如何执行。 * 讨论常见的收敛性问题及其解决方法。 * 学习如何从非线性屈曲分析结果中确定临界载荷。 4. **后屈曲分析 (Post-buckling Analysis)**: * 研究屈曲发生后的结构行为，这是非线性屈曲分析难以捕捉的部分。 * 学习如何利用稳定化设置（Stabilization Settings）来捕捉屈曲发生后的行为，解决非线性屈曲分析中的发散问题。 * 介绍并学习如何使用弧长法（Arc-Length Method），该方法相比于牛顿-拉夫森法（Newton-Raphson method）更为有效。 * 学习在 Ansys Mechanical 中应用弧长法的具体指令。
-- Check My Website (importfea) --We are going to examine the topics of linear and nonlinear buckling. Since I have already prepared an introductory course for Ansys, we are going to focus only on the topic of buckling. In the course, we are going to see linear buckling, nonlinear buckling, post-buckling, and arc-length method. Version 2021R1 was used in the tutorial. We can gather the tutorial under 4 topics as linear buckling, nonlinear based eigenvalue buckling, nonlinear buckling, and post-buckling. The tutorial only includes the 4 main topics. In the first topic, we are going to focus on the questions of what is buckling and why is it important. Then, we are going to examine the topic of eigenvalue buckling. We are going to be learning the formulations and calculations for the critical load. We are also going to check the advantages and disadvantages of linear buckling and be learning why we need nonlinear buckling analysis. We are going to examine how to design based on buckling taking advantage of fast computing time in linear buckling. In the second topic, we are going to increase the accuracy with nonlinear-based linear buckling analysis. We are going to perform a nonlinear static analysis and, eigenvalue buckling analysis based on the results of nonlinear static analysis. Since the formulation and calculations for critical load are going to be changed, we are going to learn the formulations again. In the third topic, we are going to introduce nonlinear buckling analysis. Since nonlinear buckling analysis requires more experience and more computing time, it is going to be harder if we compared the linear buckling analysis. Firstly, we are going to learn nonlinear settings and then learn how to perform nonlinear buckling analysis. We are going to discuss the convergence problems. We are going to learn how to find critical load from the results of nonlinear buckling analysis. In the last topic, we are going to examine the behavior after buckling that we can't capture on nonlinear buckling analysis. At the commencement of the buckling, nonlinear buckling analysis start to divergence and can't solve the model. After the commencement of the buckling, we are going to learn how to capture the buckling behavior by using stabilization settings. In addition, we are going to learn how to use the Arc-Length method which is much more effective than the Newton-Raphson method, and learn how to use the command in Mechanical. Best Regards,
