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Bilinear systems based on instantaneous energy of the maximum bit called

reCollege, LanzhouRailwayUniveristyLanzhou, 730070) AbstractBasedontheassumptionthattheinstantaneousinputenergyisequalforelasticandbilinearSDOFsystems, there-lationshipbetweenthemaximumdisplacementofabilinearsystemandthatofaelasticsystemisobtained. Thesimplifiedup-perandlowerboundsofthemaximumdisplacementofthebilinearsystemaresuggested. Theresultsoftime-historyanalysisshowthatthemaximumdisplacementsofthebilinearsystemsofdifferentperiodsmostlyfallbetweentheproposedupperandlowerbounds. Theresultscanbereferencedbyseismicdesignofstructures. Keywords: linearsystem; seismicresponse; instantaneousenergy; bilinear Wang Changfeng male first author, graduate student. Born in 1977. Tel: (0931) 3340226; E-mail: Wangchang-f @ sohu. com ¨ ◆ ... I ◆ ... I ◆ ... ◆ ... I ◆ ... I ◆ ... I ◆ ... I ◆ ... I ◆ llII ◆ llII ◆ ... I ◆ ◆ ... I ◆ IIII ◆ IIII ◆ ... 14 ... l ◆ IIII ◆ ... ◆ ◆ ... I ◆ IIll ◆ ... II ◆ IIIl ◆ IIII ◆ ¨ ¨ ◆ IIll ~ ... ◆ IIIl ◆ Iill ◆ ◆ ... ◆ ... I ◆ IIIl ◆ ... ◆ ... I ◆ ... I ◆ lIIl ◆ lI ¨ ◆ ... I ◆ ¨ ¨ ◆ ... ◆ ... I ◆ ... I ◆ ... ◆ ... I ◆ ... 1. 21st International Conference IMAC report on the structural dynamics of the 21st International Conference on the IMAC (formerly known as Since the world's 629 more than twenty countries attended the session. IMACXXI conference on the structural dynamics problem into 30 topics, 42 groups of seven at the venue will be conducted in an academic report and discussion. Meeting in three and a half share in total of 274 papers. In addition to the traditional ,[link widoczny dla zalogowanych], as well as in aviation,[link widoczny dla zalogowanych], aerospace,[link widoczny dla zalogowanych], automotive, rotating machinery and civil engineering structures of topics. This session's theme is In line with this theme,[link widoczny dla zalogowanych], invited the U.S. National Institute of Standards and Technology, Ph.D.,[link widoczny dla zalogowanych], deputy director of KarenBrown made a presentation entitled In addition, the test set up with the innovative technology-related sensors, structural health monitoring of civil engineering structures and other special groups will be. IMAC meeting in accordance with tradition, the meeting was also held during the grand-scale dynamic testing and analysis of hardware, software and consulting services to the exhibition. Internationally renowned 47 companies in 66 booths showcased the latest products. IMAC next meeting (IMACXXII) 26 January 2004 will be 29 in the U.S. city of Detroit held on the theme Welcome to our colleagues to participate actively. Interested participants called for June 4 to submit abstracts, and was completed before May 4 lO text. IMAC details please refer to the organizer (American Society of Experimental Mechanics) Website: [link widoczny dla zalogowanych] SelTI. org. (Photo Order Mi.) ;,,;;

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