| Modal Shape Analysis Methods of Machine Structure |
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| 引用本文： | YANG Wei~,QIU Qing-yin~,HU Jian-jun~. Modal Shape Analysis Methods of Machine Structure[J]. 保鲜与加工, 2004, 0(6): 1-4 |
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| 作者姓名： | YANG Wei~ QIU Qing-yin~ HU Jian-jun~ |
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| 摘 要： | The iterative Lanczos-reduce method for sensitivity analysis, the Guyan condensed method and the iterative synchronous vector methods in finite element modal are studied in order to solve the dynamic characteristic of complicated machine system. The primary reasons influenced on calculation precision are pointed out. The principia of master freedom for Guyan condensed method are put forward. The calculation precision of three methods is compared with the same standard finite element model. The iterative Lanczos-reduce method for sensitivity analysis is proved to be optimum analysis and the eigenvalue of arm in work device of hydraulic excavator in finite element model is solved with iterative Lanczos-reduce method for sensitivity analysis. The theory basis is provided for reasonable choose to solve the dynamic of complicated machine structure.
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| 关 键 词： | finite element model model shape hydraulic excavator work device |
| 修稿时间： | 2004-03-10 |
Modal Shape Analysis Methods of Machine Structure |
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| YANG Wei,QIU Qing-yin,HU Jian-jun. Modal Shape Analysis Methods of Machine Structure[J]. Storage & Process, 2004, 0(6): 1-4 |
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| Authors: | YANG Wei QIU Qing-yin HU Jian-jun |
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| Affiliation: | YANG Wei~,QIU Qing-yin~,HU Jian-jun~ |
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| Abstract: | The iterative Lanczos-reduce method for sensitivity analysis, the Guyan condensed method and the iterative synchronous vector methods in finite element modal are studied in order to solve the dynamic characteristic of complicated machine system. The primary reasons influenced on calculation precision are pointed out. The principia of master freedom for Guyan condensed method are put forward. The calculation precision of three methods is compared with the same standard finite element model. The iterative Lanczos-reduce method for sensitivity analysis is proved to be optimum analysis and the eigenvalue of arm in work device of hydraulic excavator in finite element model is solved with iterative Lanczos-reduce method for sensitivity analysis. The theory basis is provided for reasonable choose to solve the dynamic of complicated machine structure. |
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| Keywords: | finite element model model shape hydraulic excavator work device |
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