Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/21078
Title: An indicator for the assessment of isolation performance of transient vibration
Authors: Wang, J
Mak, CM 
Keywords: Steady-state power transmissibility
Steady-state vibration
Transient power transmissibility
Transient vibration
Vibration isolation
Issue Date: 2013
Publisher: Sage Publications Ltd
Source: JVC/journal of vibration and control, 2013, v. 19, no. 16, p. 2459-2468 How to cite?
Journal: JVC/Journal of Vibration and Control 
Abstract: It is known that the commonly used performance indicator for vibration isolation - force transmissibility - over-simplifies the vibration problem. Therefore, Mak and Su propose a power transmissibility approach that includes the effect of floor dynamics and the interactions of the mounting points between machine and floor. However, their model does not consider transient vibration excitation. The question motivating this study is the occasional problem which arises due to the sudden or frequent starting and stopping of vibratory machines. In this paper, a transient power transmissibility approach is proposed to assess the performance of isolators in a transient vibration excitation. A spring-mass-movable floor system is considered in the simulation, and the spring isolator is first selected using the steady-state power transmissibility approach of Mak and Su. A system disturbed by two transient excitations as typically experienced by building services equipment is then analyzed. The results indicate the necessity of using transient power transmissibility in the selection of isolators for a transient vibration.
URI: http://hdl.handle.net/10397/21078
ISSN: 1077-5463
DOI: 10.1177/1077546312458135
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