桥梁结构ANSYS建模原则及常见问题.pdf

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1、桥梁结构ANSYS建模原则及常见问题王东绪，周昱，王士刚，李永乐西南交通大学桥梁工程系李永乐研学团队二O一二年九月目录1桥梁结构ANSYS模拟方法及原则.................................11.1模拟方法..........................................................11.1.1梁格法......................................................11.1.2实体元法和板壳元法..................

2、.......................11.1.3空间梁单元.................................................11.2各种构件模拟......................................................21.2.1主梁模拟原则...............................................21.2.2刚臂问题....................................................31.

3、2.3质量及质量惯性矩............................................31.2.4索结构模拟.................................................41.2.5常用单元特性...............................................41.3命令流编写注意事项................................................52建模过程中常见问题.........................

4、..................72.1集中质量阵和一致质量阵的选取问题..................................72.2钢桥面板翼缘有效宽度..............................................82.3板桁桥面系简化...................................................102.4两节点间采用耦合与刚臂连接的区别.................................132.5节点、单元编号注意事项及减小带宽..

5、...............................152.6多片主梁的简支梁桥建模要点.......................................172.7阻尼矩阵及模态分析方法问题.......................................182.8非线性问题.......................................................192.9接触问题....................................................

6、.....213数据的提取与输入............................................243.1刚度矩阵的提取...................................................243.1.1单元刚度矩阵...............................................243.1.2整体刚度矩阵..............................................243.1.3提取简例..................

7、.................................253.2振型图的输出.....................................................294基于APDL的编程及ANSYS新模块的实现.........................344.1APDL的特点......................................................344.2APDL的编程...............................................

8、.......344.2.1APDL的参数化变量及函数...................................344.2.3宏命令...............................