| 机床整机建模的自由界面模态综合改进方法之二 |
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| 引用本文： | 高济众,戴福民,詹姆斯·穆尔.机床整机建模的自由界面模态综合改进方法之二[J].合肥工业大学学报(自然科学版),1991(3). |
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| 作者姓名： | 高济众 戴福民 詹姆斯·穆尔 |
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| 作者单位： | 合肥工业大学
(高济众，戴福民)，美国弗吉尼亚州立大学综合工艺学院(詹姆斯·穆尔) |
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| 摘 要： | 本文通过将每个子结构的位移自由度集合,分成非界面自由度,直接耦合界面自由度和间接耦合界面自由度三个子自由度集合,并采用双协调法和二次模态变换,凝聚掉直接耦合界面上的全部自由度。从而使含结合面的整体结构最后所保留的自由度仅为低阶保留模态集和非界面耦合界面自由度,大大减小了凝聚规模,提高了分析效率。本方法尤其适用于分析大型复杂结构。
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| 关 键 词： | 模态综合 非界面 直接耦合 间接耦合 |
THE SECOND IMPROVED FREE-INTERFACE SUBSTRUCTURING METHODS APPLICABLE TO THE DYNAMIC ANALYSIS OF MACHINE TOOLS |
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| Gao Jizhong Dai Fuming James M. Moore.THE SECOND IMPROVED FREE-INTERFACE SUBSTRUCTURING METHODS APPLICABLE TO THE DYNAMIC ANALYSIS OF MACHINE TOOLS[J].Journal of Hefei University of Technology(Natural Science),1991(3). |
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| Authors: | Gao Jizhong Dai Fuming James M Moore |
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| Institution: | Gao Jizhong Dai Fuming James M. Moore( Hefei University of Technology) (Virginia Polytechnic Instituteand State University of USA ) |
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| Abstract: | In this paper, the entire set of freedoms and the displacement Vector of each substructure are divided into three subsets, namely, non-interface, direcfly Coupled interface and indirecfly coupled interface. With the biconsistent compatibility at the interfaces and the double modal transformation, the subset of freedoms on directly coupled interfaces can all be removed, the final retained generalized coordinates on indirectly coupled interfaces. A model of much Smaller scale results and the computational efficiency is raised greatly especially for large complex structures. |
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| Keywords: | Modal synthysis non-interface directly coupled indirectly coupled |
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