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2013 (Vol. 6, Issue: 05)
Article Information:

Vibration Analysis of Air Condition Unit on Subway

Yan Liu, Bing Yang, Wen Liu and Xiao Wang
Corresponding Author:  Yan Liu 

Key words:  Air condition unit, spectrum analysis, subway, vibration, , ,
Vol. 6 , (05): 914-918
Submitted Accepted Published
October 30, 2012 December 28, 2012 June 25, 2013
Abstract:

Subway system has many merits including large passenger carrying ability, high speed, strong controllability and reliability of driving. Nevertheless, subways also have brought many disadvantages for human. In many subway systems, noisy environments are clearly observed and passengers are exposed to higher noise levels than permissible limit. This study presents a study of noise and vibration of subway air condition system, so as to grasp the vibration distribution laws of the air condition system. By the tested of noise and vibration, the researcher find the sound distribution rule of air condition is very important Based on the consequence of the testing, the acceleration of air condition has little to do with the subway speed and more to do with the vibration of fan; When the train driving on the viaduct bridge, the acceleration of air condition is biggish in 125 Hz and In 50-1000 Hz the vibration of air condition is obviously. When the train running underground line, as a result of the resonance of body, air conditionís vibration is biggish in 630 Hz and the vibration is obviously in 125-1250 Hz. With the increase of the speed, the influence of the groundís second radiation on body vibration is enhanced. The superfine gross wool which is used to air condition can achieve good results for noise reduction. This research has higher reference for the vibration and noise reduction of the subway air condition system.
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  Cite this Reference:
Yan Liu, Bing Yang, Wen Liu and Xiao Wang, 2013. Vibration Analysis of Air Condition Unit on Subway.  Research Journal of Applied Sciences, Engineering and Technology, 6(05): 914-918.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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