文献详情
Structural optimization with an automatic mode identification method for tracking global vibration mode
文献类型期刊
作者Chen, Shenyan[1];Hu, Yijie[2];An, Haichao[3]
机构
通讯作者Hu, YJ (reprint author), Beihang Univ, Sch Astronaut, Beijing, Peoples R China.
来源信息年:2017  卷:49  期:12  页码范围:2036-2054  
期刊信息ENGINEERING OPTIMIZATION影响因子和分区  ISSN:0305-215X
关键词Mode switching; structural optimization; dynamic constraints; global mode; mode identification
增刊正刊
摘要This article presents a mode identification method for structural optimization with global mode constraints to overcome the mode switching problem. In engineering design, the natural frequencies of global vibrations for a complex structure, the orders of which would not be constant in optimization loops, are usually very difficult to constrain. In this case, an incorrect constraint may lead to an unreliable design. A mode identification technique based on modal effective mass fraction is implemented to track the global modes such that the constraints will be updated subsequently and the optimizer can run correctly. A study case with comparison to traditional modal assurance criterion approaches demonstrates the advantages of this technique. An optimization framework has been developed with the new proposed mathematical model. Two numerical optimization examples, of a space truss and a simplified satellite structure, are presented to demonstrate the feasibility and applicability of this process.
收录情况SCIE(WOS:000415684800002)  
所属部门宇航学院
DOI10.1080/0305215X.2017.1290086
百度学术Structural optimization with an automatic mode identification method for tracking global vibration mode
语言外文
人气指数1100
浏览次数1100
基金National Natural Science Foundation of China [11102009, 11302010]
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