Refinement of reduced-models for dynamic systems
A refinement procedure for the reduced models of structural dynamic systems is presented in this article. The refinement procedure is to ＂tune＂ the parameters of a reduced model, which could be obtained from any traditional model reduction scheme, into an improved reduced model. Upon the completion...
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| Veröffentlicht in: | Progress in natural science 2008, Vol.18 (8), p.993-997 |
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| creator | Li, Huajun Zhang, Min Hu, Sau-Lon James |
| description | A refinement procedure for the reduced models of structural dynamic systems is presented in this article. The refinement procedure is to ＂tune＂ the parameters of a reduced model, which could be obtained from any traditional model reduction scheme, into an improved reduced model. Upon the completion of the refinement, the improved reduced model matches the dynamic characteristics - the chosen structural frequencies and their mode shapes - of the full order model. Mathematically, the procedure to implement the model refinement technique is an application of the recently developed cross-model cross-mode （CMCM） method for model updating. A numerical example of reducing a 5-DOF （degree-of-freedom） classical mass-spring （or shear-building） model into a 3-DOF generalized mass-spring model is demonstrated in this article. |
| doi_str_mv | 10.1016/j.pnsc.2008.03.011 |
| format | Article |
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The refinement procedure is to ＂tune＂ the parameters of a reduced model, which could be obtained from any traditional model reduction scheme, into an improved reduced model. Upon the completion of the refinement, the improved reduced model matches the dynamic characteristics - the chosen structural frequencies and their mode shapes - of the full order model. Mathematically, the procedure to implement the model refinement technique is an application of the recently developed cross-model cross-mode （CMCM） method for model updating. A numerical example of reducing a 5-DOF （degree-of-freedom） classical mass-spring （or shear-building） model into a 3-DOF generalized mass-spring model is demonstrated in this article.</description><identifier>ISSN: 1002-0071</identifier><identifier>DOI: 10.1016/j.pnsc.2008.03.011</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Finite element method ; Modal analysis ; Model reduction ; Model refinement ; Structural dynamics ; 有限元方法 ; 模型分析 ; 物理学 ; 结构动力学</subject><ispartof>Progress in natural science, 2008, Vol.18 (8), p.993-997</ispartof><rights>2008 National Natural Science Foundation of China and Chinese Academy of Sciences</rights><rights>Copyright © Wanfang Data Co. Ltd. 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The refinement procedure is to ＂tune＂ the parameters of a reduced model, which could be obtained from any traditional model reduction scheme, into an improved reduced model. Upon the completion of the refinement, the improved reduced model matches the dynamic characteristics - the chosen structural frequencies and their mode shapes - of the full order model. Mathematically, the procedure to implement the model refinement technique is an application of the recently developed cross-model cross-mode （CMCM） method for model updating. A numerical example of reducing a 5-DOF （degree-of-freedom） classical mass-spring （or shear-building） model into a 3-DOF generalized mass-spring model is demonstrated in this article.</description><subject>Finite element method</subject><subject>Modal analysis</subject><subject>Model reduction</subject><subject>Model refinement</subject><subject>Structural dynamics</subject><subject>有限元方法</subject><subject>模型分析</subject><subject>物理学</subject><subject>结构动力学</subject><issn>1002-0071</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNp9kD9PwzAQxT2ARCl8AaaIjSHhbCdxIrGgin9SJSQEs-U45-K0cYqdAu2nJ1E6oxvuhve7u_cIuaKQUKD5bZNsXdAJAygS4AlQekJmFIDFAIKekfMQGhjHXMwIvKGxDlt0fdSZyGO901jHbVfjJkSm81G9d6q1Ogr70GMbLsipUZuAl8c-Jx-PD--L53j5-vSyuF_GOoWsjxkUJgcqqDYqLQvBU6ME5ogZGqp5lbGcZXlVUMNQU1EWpTGV4FWpIC1Vwfmc3Ex7f5Qzyq1k0-28Gy7Kg1__NgeJo8GhKB20bNJq34Xg0citt63ye0lBjpnIRo6ZyBGRwOUE3U3QYBS_LXoZtEU3uLcedS_rzv6PXx9vfnZu9WWHDyul18ZuUDJR8ixNGf8DreN3Pw</recordid><startdate>2008</startdate><enddate>2008</enddate><creator>Li, Huajun</creator><creator>Zhang, Min</creator><creator>Hu, Sau-Lon James</creator><general>Elsevier Ltd</general><general>Department of Ocean Engineering, Ocean University of China, Qingdao 266100, China%Department of Ocean Engineering, University of Rhode Island, Narragansett, RI 02882-1197, USA</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>~WA</scope><scope>6I.</scope><scope>AAFTH</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope></search><sort><creationdate>2008</creationdate><title>Refinement of reduced-models for dynamic systems</title><author>Li, Huajun ; Zhang, Min ; Hu, Sau-Lon James</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c405t-208f60171cfa498734fa7e6ee5ef1c3b526256b81f2ec17989ffb73b9a049a833</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Finite element method</topic><topic>Modal analysis</topic><topic>Model reduction</topic><topic>Model refinement</topic><topic>Structural dynamics</topic><topic>有限元方法</topic><topic>模型分析</topic><topic>物理学</topic><topic>结构动力学</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Li, Huajun</creatorcontrib><creatorcontrib>Zhang, Min</creatorcontrib><creatorcontrib>Hu, Sau-Lon James</creatorcontrib><collection>维普_期刊</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>维普中文期刊数据库</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>ScienceDirect Open Access Titles</collection><collection>Elsevier:ScienceDirect:Open Access</collection><collection>CrossRef</collection><collection>Wanfang Data Journals - Hong Kong</collection><collection>WANFANG Data Centre</collection><collection>Wanfang Data Journals</collection><collection>万方数据期刊 - 香港版</collection><collection>China Online Journals (COJ)</collection><collection>China Online Journals (COJ)</collection><jtitle>Progress in natural science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Li, Huajun</au><au>Zhang, Min</au><au>Hu, Sau-Lon James</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Refinement of reduced-models for dynamic systems</atitle><jtitle>Progress in natural science</jtitle><addtitle>Progress in Natural Science</addtitle><date>2008</date><risdate>2008</risdate><volume>18</volume><issue>8</issue><spage>993</spage><epage>997</epage><pages>993-997</pages><issn>1002-0071</issn><abstract>A refinement procedure for the reduced models of structural dynamic systems is presented in this article. 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| subjects | Finite element method Modal analysis Model reduction Model refinement Structural dynamics 有限元方法 模型分析 物理学 结构动力学 |
| title | Refinement of reduced-models for dynamic systems |
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