Open AccessDesign and analysis of an active‐controlled hydraulic low‐frequency vibration isolator
Author(s) -
Guo Ning,
Wang Fan,
Wang Linxiang
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.8955
Subject(s) - vibration isolation , isolator , vibration , natural frequency , compensation (psychology) , active vibration control , stiffness , structural engineering , low frequency , acoustics , control theory (sociology) , computer science , vibration control , engineering , physics , electronic engineering , telecommunications , psychology , control (management) , artificial intelligence , psychoanalysis
This study proposes an active‐controlled hydraulic low‐frequency vibration isolator. The vibration isolator can achieve large equivalent mass and quasi‐zero dynamic stiffness by combining the fluid inerter with the hydraulic active compensation. Thus, good vibration isolation performance at ultra‐low frequency can be realised. The model for the dynamics of the device is set up. The principle of low‐frequency vibration isolation is explicated. The natural frequency and its influencing factors are analysed. Finally, preliminary experimental research works are carried out. The results indicate that low‐frequency vibration can be effectively isolated by the device proposed in this study.