| 提高ANSYS中BEAM188梁单元计算精度的方法 |
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| 引用本文： | 刘玉卿,陈孝建,杨树耕,汪睿,刘小燕.提高ANSYS中BEAM188梁单元计算精度的方法[J].石油矿场机械,2012,41(4):39-43. |
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| 作者姓名： | 刘玉卿 陈孝建 杨树耕 汪睿 刘小燕 |
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| 作者单位： | 天津大学,天津,300072 |
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| 摘 要： | BEAM188单元沿梁长度方向的弯矩为阶梯状分布,与理论分析结果存在较大误差,对计算精度有很大影响。为提高计算精度,提出了采用二次型的BEAM188单元的方案,并通过计算检验了二次型梁单元的收敛速度和计算精度。结果表明,该方案能够在保证计算效率的前提下显著地提高计算精度。
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| 关 键 词： | 海洋平台 BEAM188 二次型 高斯积分点 |
Study and Improving Accuracy of ANSYS BEAM188 Element in Structure Calculation |
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| LIU Yu-qing
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CHEN Xiao-jian
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YANG Shu-geng
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WANG Rui
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LIU Xiao-yan.Study and Improving Accuracy of ANSYS BEAM188 Element in Structure Calculation[J].Oil Field Equipment,2012,41(4):39-43. |
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| Authors: | LIU Yu-qing CHEN Xiao-jian YANG Shu-geng WANG Rui LIU Xiao-yan |
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| Affiliation: | (Tianjin University,Tianjin 300072,China) |
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| Abstract: | There is a big error in the bending moment distribution along the beam between the theoretical value and BEAM188 element calculation results.In order to improve accuracy,a quadratic BEAM188 element is a better choice.The result shows that this method can improve the calculation accuracy in the premise of ensuring computational efficiency. |
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| Keywords: | marine platform BEAM188 quadratic Gauss integral point |
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