文章摘要
Influence of Load and Aging Factors on Vibration Transmission Rate of Floor Damping System System
Received:October 23, 2017  Revised:October 23, 2017
DOI：10.12136/j.issn.1000-890X.2019.03.0213
Key Words: EMU；floor damping system；aging degree；load；vibration transmission rate
Author NameAffiliationE-mail
ZENG Xiankui Qingdao University of Science and Technology zxk1967@163.com 
GAO Yuanhao* Qingdao University of Science and Technology 287288370@qq.com 
FENG Hanlin Qingdao University of Science and Technology  
BAO Liping Qingdao University of Science and Technology  
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Abstract:
      The influence of load and aging factors on the vibration transmission rate of floor damping system was studied by applying different loads on the EMU floor damping system and replacing the rubber damper with different aging degrees. The results showed that the influence of load on the vibration transmission rate of the floor damping system was mainly concentrated on the frequency range of 10～25 Hz. In this range，the smaller the load，the higher the transmission rate was. When the damping performance loss rate of the rubber damper was greater，the vibration transmission rate was greater，and the relationship between them was non-linear. The mathematical model of the damping performance loss rate of the rubber damper after aging and the vibration transmission rate was established，and it could be used in optimizing the design of the floor damping system.
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