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标题:
关于ansys14.5的空间桁架
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作者:
懒趴趴的熊
时间:
2014-3-5 20:03
标题:
关于ansys14.5的空间桁架
初学ansys，各种不懂。想做一个空间桁架受力分析，然后代码写了，导入ansys后加载，实常数，单元类型，材料属性都定义了，就是不求解，也查不到错，求大神们指教T^T
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问题是这样的：
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线L1，L9受Y负方向的均布载荷1000N/m，关键点7,15,19全约束，受重力场的影响下看它的变形和应力。
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这个是我写的APDL代码
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!桁架分析
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FINISH$/CLEAR$/PREP7
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!方铝截面
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ET,1,BEAM4
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R,1,0.902E-4,0.534E-8,0.534E-8,0.02,0.02
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MP,EX,1,6.9E10
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MP,PRXY,1,0.33
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MP,DENS,1,2900
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SECTPYE,1,BEAM,HREC
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SECDATA,0.02,0.02,0.0012,0.0012,0.0012,0.0012
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!桁架线体模型
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K,1$K,2,0.140$K,3,0.360$K,4,0.680$K,5,0.930$K,6,1
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K,7,0.680,-0.150$K,8,0.680,-0.120
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L,1,2$L,2,6$L,4,7$L,2,7$L,5,7
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K,9,0,0,-0.360$K,10,0.360,0,-0.360$K,11,1,0,-0.360
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K,12,0.140,,-0.360$K,13,0.680,0,-0.360$K,14,0.930,0,-0.360
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K,15,0.680,-0.150,-0.360$K,16,0.680,-0.120,-0.360
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L,1,9$L,3,10$L,6,11$L,9,12$L,12,11$L,13,15
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L,3,10$L,12,15$L,14,15
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L,8,16
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K,17,0.356,-0.060$K,18,0.356,-0.060,-0.360
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L,17,18
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K,19,1,0,-0.180
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!分网
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LESIZE,ALL,,,10
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LMESH,ALL
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FINISH
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究竟是ansys14的BEAM单元的问题还是我自己的问题，反正我就是不能用梁单元在ansys里求解。用solid95单元的话，这个结构分网困难，难以计算，简化就不求解，求给位大神指点，小弟感激不尽T^T
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在线急等
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