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A Solution for Modal Reduction Criterion Based on the System Response(PDF)

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2000年06期
Page:
532-535
Research Field:
Publishing date:

Info

Title:
A Solution for Modal Reduction Criterion Based on the System Response
Author(s):
GuanHonggen ChenChangshun GaoShuzi
School of Mechanics,NUST,Nanjing 210094
Keywords:
dynamics flex ible mult ibody system modal synthesis method
PACS:
O316
DOI:
-
Abstract:
In this paper, modal reduct ion criterion is derived based on the system response taking as the model of Euler-Bernoulli beam, editing modal according to the value of modal cost s. The conclusion can be used in a large f lexible complex structure system. It is a more preferable to simpler frequency criterion, since it takes into account of f requency, v ibration mode, damping, sensor and actuator information. Reduced order model can approx imate well the basic characterist ics of the original system. An example of edit ing modal for simply-supported beam is illust rated in the end of the paper.

References:

1 Hu A, Skelton R E. Modal cost analysis for simple co ntinua. In: Atluri S N, Amos A K. Larg e Space Structures: Dynamics and Control. Berlin: Springer-Verlag Berlin Heidelberg 1988. 71~ 93
2 黄文虎, 邵成性. 多柔体系统动力学. 北京: 科学出版社, 1996. 74~ 97
3 管红根. 多体系统的动力学模化和降阶方法的研究: [ 硕士学位论文] . 哈尔滨: 哈尔滨工业大学, 1991

Memo

Memo:
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Last Update: 2013-03-25