| 基于 Nastran 的粘性和粘弹性人工边界的模拟与验证 |
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| 引用本文： | 张焜煌,钱彦岭,徐慧峰,王建伟.基于 Nastran 的粘性和粘弹性人工边界的模拟与验证[J].兵工自动化,2009,28(3):29-31. |
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| 作者姓名： | 张焜煌 钱彦岭 徐慧峰 王建伟 |
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| 作者单位： | 国防科学技术大学,机电研究所,长沙,湖南,410072;国防科学技术大学,机电研究所,长沙,湖南,410072;国防科学技术大学,机电研究所,长沙,湖南,410072;国防科学技术大学,机电研究所,长沙,湖南,410072 |
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| 摘 要： | 采用通用有限元程序Nastran中的弹簧阻尼单元模拟粘性和粘弹性人工边界。在Nastran中粘性人工边界是采用阻尼单元damper单元实现，粘弹性人工边界采用CBUSHID单元实现。实例证明该两种人工边界具有较高的精度，并且粘弹性人工边界要好于粘性人工边界，能很好的处理岩土与结构动力相互作用的问题。
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| 关 键 词： | 粘性 粘弹性 人工边界 岩土与结构动力相互作用 |
Simulation and Verification of Viscous and Viscous-Spring Artificial Boundary Based on Nastran |
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| ZHANG Kun-huang,QIAN Yan-ling,XU Hui-feng,WANG Jian-wei.Simulation and Verification of Viscous and Viscous-Spring Artificial Boundary Based on Nastran[J].Ordnance Industry Automation,2009,28(3):29-31. |
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| Authors: | ZHANG Kun-huang QIAN Yan-ling XU Hui-feng WANG Jian-wei |
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| Affiliation: | Institute of Electromechanical;National University of Defense Technology;Changsha 410072;China |
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| Abstract: | Viscous and viscous-spring artificial boundaries are simulated by using the spring-damper element in Nastran,the general finite element program.Viscous artificial boundary is implemented by the damper element of Nastran,and the viscous-spring artificial boundary is implemented by the CBUSH1D element of Nastran.It is shown by practical example that the two artificial boundaries have high precision,and the viscous-spring artificial boundary is better than viscous artificial boundary;they can well deal with pr... |
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| Keywords: | Viscous Viscoelasticity Artificial boundary Soil structure dynamic interaction |
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