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Zhang Junyong, Tang Jiaxiang. CHAOTIC RESPONSE OF FREESTANDING INDOOR EQUIPMENT UNDER EARTHQUAKE[J]. Engineering Mechanics, 1997, 14(4): 76-82.
Citation: Zhang Junyong, Tang Jiaxiang. CHAOTIC RESPONSE OF FREESTANDING INDOOR EQUIPMENT UNDER EARTHQUAKE[J]. Engineering Mechanics, 1997, 14(4): 76-82.
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CHAOTIC RESPONSE OF FREESTANDING INDOOR EQUIPMENT UNDER EARTHQUAKE

  • The Department of Civil Engineering, Huazhong University of Science & Technology, Wuhan 430074

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  • Received Date: September 30, 1996
  • Revised Date: December 31, 1899
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  • The free-standing equipment could be damaged because of their sliding, rocking and toppling during a seismic event. In this paper, the free-standing equipment is modeled as a rigid body, and the base on which the equipment is placed is regarded to be rigid. The response of the rigid body on a harmonically motivated base is studied, and it is discovered that in the overturning movement there exist three types of response, the periodic, quasi-periodic and chaotic. The reason the response of this system is sensitive to initial condition is uncovered.
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