| 王峥峥,高波.结构-地基系统静-动力联合分析模型[J].计算力学学报,2012,29(2):165~170 |
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| 结构-地基系统静-动力联合分析模型 |
| Unified model for static and dynamic analysis of structure-ground system |
| 投稿时间：2010-06-02 修订日期：2011-02-08 |
| DOI：10.7511/jslx20122003 |
| 中文关键词: 结构-地基系统 静-动力分析模型 无限元统一边界 有限元 人工边界 |
| 英文关键词:Structure-ground system model for static and dynamic analysis unified infinite element boundary finite element artificial boundary |
| 基金项目:国家自然科学基金(51108056)资助项目. |
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| 中文摘要: |
| 以有限区域模拟无限区域的动力计算必须考虑边界上波的传播效应,应不使波在边界上发生反射再返回到计算域中,并且应考虑初始静力场对其动力反应的影响。因此,基于无限元的静、动力特性提出静-动力统一无限元,通过算例验证无限元静-动力统一人工边界在静-动力联合分析模型中的精度和稳定性。结果表明:无限元静-动力统一人工边界在静力、动力及静-动力联合分析模型中具有很高的精度和良好的稳定性,突破了传统动力人工边界不能兼顾静力效应的局限。 |
| 英文摘要: |
| Effects of waves transmitting in artificial boundary and gravity field should be considered in dynamic analysis. So unified static and dynamic infinite element boundary is herein proposed based on static and dynamic characteristic of infinite element and verified precision and stability in the model for combined static and dynamic analysis. The results show that the model with infinite element boundary has high precision and well stability. |
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