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| Space-time domain multiscale simulation method for dynamic analysis of large-scale orthotropic structure and its applications |
| Received:April 09, 2014 Revised:September 20, 2014 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201506003 |
| KeyWord:orthotropic structure dynamic analysis equivalent modelling space-time domain multi-scale analysis |
| Author | Institution |
| 张伟伟 |
上海交通大学 机械系统与振动国家重点实验室 机械与动力工程学院, 上海 |
| 金先龙 |
上海交通大学 机械系统与振动国家重点实验室 机械与动力工程学院, 上海 |
| 翁依柳 |
上海交通大学 机械系统与振动国家重点实验室 机械与动力工程学院, 上海 |
| 王建炜 |
上海交通大学 机械系统与振动国家重点实验室 机械与动力工程学院, 上海 |
| 杨颜志 |
上海交通大学 机械系统与振动国家重点实验室 机械与动力工程学院, 上海 |
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| Abstract: |
| In order to solve the overall and local dynamic responses of large-scale orthotropic structure more accurately and efficiently,a combined equivalent & multi-scale simulation method based on the finite element modal analysis and parameter optimization is proposed,by which the equivalent model can fully consider the details' influences on the dynamic property of the overall structure.The system equation can be solved by the subcycling approach based on the explicit central difference algorithm,reducing the solution time penalty brought by the local fine modeling.The effectiveness and practicality of the method were verified by the simulations of large scale shield tunnel seismic response and ship-bridge collision process.The responses get from the simulation can be used for the improvement of the relevant struc-tural designs. |