| 实用多点输入虚拟激励法在通用有限元软件中的实现 |
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| 引用本文： | 江洋,石永久,王元清.实用多点输入虚拟激励法在通用有限元软件中的实现[J].地震工程与工程振动,2010,30(1). |
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| 作者姓名： | 江洋 石永久 王元清 |
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| 作者单位： | 土木工程安全与耐久教育部重点实验室,清华大学,土木工程系,北京,100084 |
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| 基金项目： | 高等学校博士学科点专项基金资助课题(20090002110045);;长江学者和创新团队发展计划资助项目(IRT00736) |
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| 摘 要： | 虚拟激励法是高效便捷的随机振动分析方法,可用于地震多点输入随机响应分析,但现有通用有限元软件无法直接实现多点输入虚拟激励法。首先将虚拟激励法改进为更实用的形式,使其便于编程实现,然后借助有限元软件ANSYS的二次开发功能实现了多点输入虚拟激励法在ANSYS中的应用,扩展了ANSYS在地震多点输入计算领域的功能,也为地震多点输入研究提供了更为简便有效的计算平台。对一简单模型多点输入的理论解析解和ANSYS计算结果进行比较,验证了该实现方法的准确性和可行性。
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| 关 键 词： | 虚拟激励法 多点输入 ANSYS 二次开发 |
Implementation of the practical pseudo excitation method for multi-support seismic response analysis in general FEM software |
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| JIANG Yang,SHI Yongjiu,WANG Yuanqing.Implementation of the practical pseudo excitation method for multi-support seismic response analysis in general FEM software[J].Earthquake Engineering and Engineering Vibration,2010,30(1). |
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| Authors: | JIANG Yang SHI Yongjiu WANG Yuanqing |
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| Institution: | Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry;Department of Civil Enginearing;Tsinghua University;Beijing 100084;China |
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| Abstract: | The pseudo excitation method for multi-support seismic response analysis,which is a kind of high efficient random vibration analysis method,hasn't been used in existing general FEM software.The pseudo excitation method is expressed in a practical form,which is suitable for programming realization.Then the pseudo excitation method is implemented in ANSYS by using the APDL(ANSYS Parametric Design Language).Thus,multi-support seismic response analysis capability of ANSYS is increased,and a simple and effective... |
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| Keywords: | pseudo excitation method multi-support excitation ANSYS secondary development |
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