| 考虑界面转角自由度的频域子结构法研究 |
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| 引用本文： | 吴仕超,蔡国平.考虑界面转角自由度的频域子结构法研究[J].振动工程学报,2011,24(3):323-326. |
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| 作者姓名： | 吴仕超 蔡国平 |
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| 作者单位： | 上海交通大学工程力学系,海洋工程国家重点实验室,上海200240 |
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| 基金项目： | 国家自然科学基金资助项目，教育部博士点基金资助项目，上海市教委科研重点资助项目，海洋工程国家重点实验室自主研究课题资助项目 |
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| 摘 要： | 采用Jetmundsen频域子结构法,针对空间刚架结构的综合进行了数值仿真,研究了界面自由度的完整性对于综合结果的影响,讨论了一种间接获取转角自由度相关频响函数信息的方法.仿真结果显示,频域子结构综合法能够有效地预报结构的动力学性能,而通过引入间接获取的转角自由度的频响信息能在一定程度上改善预报质量.
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| 关 键 词： | 刚架结构 频域子结构法 界面转角自由度 模态分析 |
| 收稿时间： | 2010/4/13 0:00:00 |
| 修稿时间： | 2010/9/15 0:00:00 |
FRF based substructuring technique considering rotational degrees of freedom of interface |
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| WU Shi-chao,CAI Guo-ping.FRF based substructuring technique considering rotational degrees of freedom of interface[J].Journal of Vibration Engineering,2011,24(3):323-326. |
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| Authors: | WU Shi-chao CAI Guo-ping |
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| Affiliation: | WU Shi-chao,CAI Guo-ping(Department of Engineering Mechanics,State Key Laboratory of Ocean Engineering,Shanghai Jiaotong University,Shanghai 200240,China) |
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| Abstract: | This paper presents numerical simulations of a spatial truss structure using the Jetmundsen FRF based substructuring technique.The effect of integrity of interface degrees of freedom on synthesis results is studied by means of FEA method.An indirect estimation method for FRF on rotational degrees that is based on modal analysis technique is discussed.Simulation results indicate that dynamic characteristics of the structure may be effectively obtained using the substructure synthesis method.The introduction ... |
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| Keywords: | truss structure FRF based substructuring rotational degrees of freedom of interface modal analysis |
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