3D Truss by MATLAB[MATLAB 3D 桁架静力分析]

接着上一篇博文的2D Truss静力分析,今天实现3D Truss的静力分析。这次求解一个72个单元的钢架在一水平节点力作用下的响应。

模型信息:

材料弹性模量 E:200000

构件截面面积A:4535

水平节点力:100000

4个支座为铰接,约束3个平动自由度位移。

模型如下图所示:

SAP2000_Trusss3D

在SAP2000中建立模型如下:

SAP2000_3DTruss

SAP2000计算结果:

SAP2000_3DTruss_DeformedShape

MATLAB计算结果:

MATLAB_Truss3D

结果对比:

Displacement Comparison
Node MATLAB-U1 MATLAB-U2 MATLAB-U3 SAP2000-U1 SAP2000-U1 SAP2000-U3
1 0 0 0 0 0 0
2 0.3921 0.0676 0.4639 0.392554 0.067651 0.463563
3 0.3162 -0.1443 0.4637 0.316749 -0.14432 0.463364
4 0.3921 -0.0676 -0.4639 0.392621 -0.06761 -0.463565
5 0 0 0 0 0 0
6 0.3162 0.1443 -0.4637 0.316766 0.14428 -0.463362
7 0 0 0 0 0 0
8 0 0 0 0 0 0
9 1.439 0.0069 0.7639 1.439155 0.006736 0.763356
10 1.2893 -0.1583 0.7622 1.289593 -0.15809 0.761586
11 1.4385 -0.0071 -0.7639 1.438722 -0.00696 -0.763343
12 1.2893 0.1585 -0.7622 1.289548 0.15832 -0.761594
13 3.222 -0.0698 0.7864 3.221394 -0.0694 0.785383
14 2.9821 -0.1681 0.7783 2.98157 -0.1682 0.777365
15 3.226 0.0707 -0.7866 3.225329 0.070395 -0.785557
16 2.9819 0.1663 -0.7782 2.98142 0.166487 -0.77725
17 5.9021 -0.2049 0.4189 5.895909 -0.20494 0.419653
18 5.3345 -0.2142 0.4167 5.329225 -0.21393 0.41709
19 5.8079 0.2142 -0.4164 5.801741 0.213925 -0.417049
20 5.3458 0.2432 -0.4177 5.340429 0.242521 -0.418163

 

从以上节点的位移对比结果可见,两者的计算结果是一致的。
PS.后续再找时间进行文档整理。

16 thoughts on “3D Truss by MATLAB[MATLAB 3D 桁架静力分析]

  1. jin Reply

    太棒了!你能把这个源代码发给我吗?我最近在写一个类似的,想学习一下

  2. Lorv Reply

    How’s things?, sometimes I get a 400 website error when I arrive at this page. I thought you may wish to know, cheers

  3. Shin Reply

    不好意思 可以跟您要這個圖的source code嗎

  4. Xiong Xiao Reply

    Hi bro, finally enter your website, such a great job you had already done, hope you can guide me in programming in the future and let’s develop some useful elasto-plastic numerical modeling program later. :wink:

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    崔博士您好,我想学习这些资料,请问如何下载?谢谢!

    • CJD Post authorReply

      还在整理文档,正在弄其他单元。后面会共享这些资料。
      可以参考一般的有限元书籍学习。

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