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Application of Positive and Negative Vibration Isolation to Raised Floor
|Authors: ||I-Hsuan Chen|
|Contributors: ||NTOU:Department of Systems Engineering and Naval Architecture|
raised floor;vibration isolation;positive isolation;negative isolation
|Issue Date: ||2013-10-07T02:47:00Z
The structural vibration and noise generated by the impact force on the floor of high-rise buildings may effect the quality and tranquility of resident lives. This paper mainly discusses the performance assessment of vibration isolation of the raised floor, and the analysis of the isolation of the impact vibration based on the theories of positive and negative vibration isolation. First of all, the vibration responses and mobilities of the raised floor structure are measured by means of the experiment of hammer test. Then these data are simulated by utilizing the software package ANSYS, and compared with the measurement ones for the purpose of validation of the correctness of the analysis model. Also, the isolation effectiveness of the raised floor related to the dimension of the floor and the strut stiffness are discussed. It can be concluded that the phenomenon of the bigger the floor size the smaller the floor supporting stiffness can reduce the isolation effect of the raised floor at the situation of the same strut stiffness. At this circumstance, it should be to select more softer strut to raised the isolation effect of the raised floor.
|Appears in Collections:||[系統工程暨造船學系] 博碩士論文|
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