[优化][ABAQUS][Midas2Abaqus] Topology Optimization of a clamped-clamped beam by Abaqus [两端固支梁拓扑优化分析算例]

做个简单的优化小例子,后续有时间继续再做深入研究吧。这些都是拓扑优化届最初级最初级的小例子。很多书本都可以看到。 先从最简单的拓扑优化开始。后续陆续分享一些实际工程的优化案例,贴近工程的一些优化思路及软件开发应用案例。 【1】Midas Gen Model 【2】Midas2Abaqus Model 【3】Abaqus Model 【4】Optimization Results 优化目标:刚度最大化。 约束条件:体积优化 50%。 (1) Step 5 (2) Step 10 (3) Step 25 (4) Strain Energy 到25步后,结构基本稳定。可以看出优化后的结构的轮廓。 后续再继续深入研究。 注释 ( Comments ) …

Abaqus 出现“The area of XXX elements is zero, small, or negative”错误提示

Abaqus “提示单元面积为零,很小或者为负数” 错误,如下所示: The area of 2500 elements is zero, small, or negative. Check coordinates or node numbering, or modify the mesh seed. The elements have been identified in element …

[Midas Gen][ABAQUS][Midas2Abaqus] Verification Example Static-31: Elliptic membrane under uniformly distributed load [ Midas Gen 验证实例 Static-31: 椭圆薄膜受均布荷载]

【1】Problem Description ( Midas Gen’s Verification Examples Static-31:  Elliptic membrane under uniformly distributed load) An elliptical membrane of thickness, t and geometrical properties is subjected to a uniformly distributed outward pressure. …

[Midas Gen][ABAQUS][Midas2Abaqus] Verification Example GNL-6: Snap-back Nonlinear problem [ Midas Gen 验证实例GNL-6: Snap-back 非线性问题]

【1】Problem Description (GNL-6: Snap-back Nonlinear problem from Midas Gen’s Verification Examples) Draw the load-displacement graph. 【2】MODEL Properties Dimension Length 2500 m Element Truss element Material Modulus of elasticity E = …

[Midas Gen][ABAQUS][Midas2Abaqus] Verification Example GNL-5: Snap-through Analysis of simply 2D truss [ Midas Gen 验证实例GNL-5: 2D桁架的阶跃分析]

【1】Problem Description (GNL-5: Snap-through Analysis of simply 2D truss from Midas Gen’s Verification Examples) A truss element is subjected to a vertical load at the node 2. Draw the load-displacement …

[Midas Gen][ABAQUS][Midas2Abaqus] Verification Example Eigen-15: Eigenvalue analysis of simply supported thin annular plate [ Midas Gen 验证实例Eigen-15: 简支薄圆板的特征值分析]

【1】Problem Description A simply supported thin annular plate is analyzed to determine the first 10 natural frequencies. Determine the natural frequencies and mode shapes. ( This model is original come …

[yjk][结构设计] YJK模型拼接后需要检查的问题

(1)工程拼装时,必须检查节点否太多细微误差,若存在,必须调整,否则整个模型会很卡很卡。由于多个人建模在拼装,节点多多少有误差。(进可能修改) (2)截面、荷载过多,必要时候需要清理。 (3)在特殊构件要检查材料表 是否有修改。 (4)铰接的指定有时候会出问题,YJK可以算,可能转到其他软件就无法计算了。 (5)部分楼层的施工顺序问题,也会打乱。若存在特殊楼层,需要注意修改。 注释 ( Comments )   ( 如果您发现有错误,欢迎批评指正。邮箱:jidong_cui@163.com . 如果您喜欢这篇博文,请在上面给我 点个赞 吧!         ( If you found any mistakes in the post, please let me know. Email : jidong_cui@163.com. If you like this posts, please …

[Midas Gen][ABAQUS][Midas2Abaqus] Tut-3: Web-opening Detail Analysis [ Midas Gen tut-3: 腹板开洞梁截面详细分析]

  ( 马上更新…)     注释 ( Comments )   ( 如果您发现有错误,欢迎批评指正。邮箱:jidong_cui@163.com . 如果您喜欢这篇博文,请在上面给我 点个赞 吧!         ( If you found any mistakes in the post, please let me know. Email : jidong_cui@163.com. If you like this posts, please give …

[Midas Gen][ABAQUS][Midas2Abaqus] Tut-4: Hammerhead Pier [ Midas Gen tut-4: 锤头桥墩]

【1】Problem Description (from ) 【2】Midas Gen Model [ Tut-4: Two column hammerhead Pier from Midas Gen’s Tutorials ] Load Case – Vertical Load: Load Case – Seismic Load: 【3】Midas 2 …

[Midas Gen][ABAQUS][Midas2Abaqus] Tut-2: Plant Structure[ Midas Gen tut-2: 厂房结构]

(马上更新…)         注释 ( Comments )   ( 如果您发现有错误,欢迎批评指正。邮箱:jidong_cui@163.com . 如果您喜欢这篇博文,请在上面给我 点个赞 吧!         ( If you found any mistakes in the post, please let me know. Email : jidong_cui@163.com. If you like this posts, please give …

[Midas Gen][ABAQUS][Midas2Abaqus] Tut-1: 3-D Simple 2–Bay Frame [ Midas Gen tut-1: 单层两跨三维框架]

【1】Problem Description ( This model is original come from Midas Gen’s Tutorials – Tut-1. ) 【2】Midas Gen Model [ Tut-1: 3-D Simple 2–Bay Frame from Midas Gen’s Tutorials ] Load …

[Midas Gen][ABAQUS][Midas2Abaqus] Static-11: 2-D Plane Truss [Static 11: 2-D 平面桁架 Verification Examples]

【1】Problem Description Determine the vertical displacements of a plane truss structure subjected to concentrated loads.[ Static-11 from the Verification Example of Midas Gen] 【2】Midas Gen Model [ Static-11 from the …

[ABAQUS][FEM][Midas] Buckling Analysis of Steel Box Beam [钢箱梁的特征值屈曲分析]

Buckling Analysis of Steel Box Beam [钢箱梁的特征值屈曲分析] 【1】Midas Gen Model 【2】Midas2Abaqus 【3】Abaqus Model 【4】Midas Gen Results (1) Buckling Mode 1 (2) Buckling Mode 2 (3) Buckling Mode 3 (4) Buckling …

[ABAQUS][Midas][FEM] Modal Analysis of Steel Box Beam [钢箱梁的模态分析]

Modal Analysis of Steel Box Beam [钢箱梁的模态分析] 【1】Midas Gen model 【2】Midas2Abaqus Model 【3】Abaqus Model 【4】Midas Gen Results (1) Mode 1 (2) Mode 2 (3) Mode 3 【5】Abaqus Results (1) Mode …

[论文][Paper] RC梁的变形性能指标限值研究与试验验证

(文章是博士论文中的梁单元部分研究内容的整理。。。) 【题目】 RC梁的变形性能指标限值研究与试验验证 Experimental study on deformation limits of RC beams 【作者】 崔济东 1 ,韩小雷 1,2 ,季 静 1 ,龚涣钧 1 CUI Jidong 1 ,HAN Xiaolei 1,2 ,JI Jing 1 …

[论文][Paper] 钢筋混凝土剪力墙变形性能指标试验研究

( 论文整理,其中高剪跨比的12个剪力墙为博士论文中的试验研究,文中提到的变形性能指标确定方法也包含在博士论文中。) 【题目】 钢筋混凝土剪力墙变形性能指标试验研究 【作者】 韩小雷1,2;陈彬彬 2;崔济东 2;潘州池 2;季静 1 2; 孙典龙2; 【单位】 1.华南理工大 学亚热带建筑科学国家重点实验室; 2.华南理工大学 土木与交通学院; 1.State Key Laboratory of Subtropical Building Science,South China University of Technology; 2.School of Civil …

[论文][Paper] T形RC剪力墙抗震变形指标限值试验

论文整理。 【题目】 T 形 RC 剪力墙抗震变形指标限值试验 【作者】 陈彬彬 1 ,季 静 1,2 ,谢舜光 1 ,韩小雷 1,2 ,陆怀坤 1 ,崔济东 1;CHEN Binbin1 ,JI Jing1,2 ,XIE Shunguang1 ,HAN Xiaolei 1,2 ,LU Huaikun1 …

[电脑技术] WIN10 “此环境变量太大”

WIN10 新建环境变量提示,“此环境变量太大”,无法新建环境变量。 百度发现,是因为Windows系统Path变量的字符串有长度限制。 为此,新建新的变量Path1,并将将Path中部分路径复制出来,放到 Path1。然后在原来的Path中添加路径 %Path1%,然后解决了路径字符串太长的问题。          

[FEM][Abaqus][Midas][分析] Midas2Abaqus模型转换工具

    (别急,马上就更新。。。。。)   注释 ( Comments )   ( 如果您发现有错误,欢迎批评指正。邮箱:jidong_cui@163.com . 如果您喜欢这篇博文,请在上面给我 点个赞 吧!         ( If you found any mistakes in the post, please let me know. Email : jidong_cui@163.com. If you like this posts, please give me …

[Midas Gen][结构分析] Midas Gen中基底反力的统计

(别急,马上就更新。。。。。)   注释 ( Comments )   ( 如果您发现有错误,欢迎批评指正。邮箱:jidong_cui@163.com . 如果您喜欢这篇博文,请在上面给我 点个赞 吧!         ( If you found any mistakes in the post, please let me know. Email : jidong_cui@163.com. If you like this posts, please give me a “thumbs up“ rating …

[Tool][软件][结构设计] 预埋件计算程序

  (别急,马上就更新。。。。。)   注释 ( Comments )   ( 如果您发现有错误,欢迎批评指正。邮箱:jidong_cui@163.com . 如果您喜欢这篇博文,请在上面给我 点个赞 吧!         ( If you found any mistakes in the post, please let me know. Email : jidong_cui@163.com. If you like this posts, please give me a “thumbs …

[Tool][软件][结构设计] 梁的构造腰筋计算工具

程序图标 ( Program Icon ) 程序介绍 ( Program Introduction) 根据混凝土规范 GB 50010-2010 计算钢筋混凝土梁的构造腰筋。  程序界面 ( Program Interface ) 注释 ( Comments )   ( 如果您发现有错误,欢迎批评指正。邮箱:jidong_cui@163.com . 如果您喜欢这篇博文,请在上面给我 点个赞 吧!         ( If you found any mistakes in the post, please let …

[科普][钢结构] 为何钢材的抗剪强度为抗拉强度的0.58倍??

  (别急,马上就更新。。。。。)   注释 ( Comments )   ( 如果您发现有错误,欢迎批评指正。邮箱:jidong_cui@163.com . 如果您喜欢这篇博文,请在上面给我 点个赞 吧!         ( If you found any mistakes in the post, please let me know. Email : jidong_cui@163.com. If you like this posts, please give me a “thumbs …