VIBRATION ISOLATION SYSTEM PROBABILITY ANALYSIS

Vestnik MGSU. 2012;(5):87-92

 

Journal Homepage

Journal Title: Vestnik MGSU

ISSN: 1997-0935 (Print); 2304-6600 (Online)

Publisher: Moscow State University of Civil Engineering (MGSU)

Society/Institution: Moscow State University of Civil Engineering (MGSU)

LCC Subject Category: Fine Arts: Architecture | Social Sciences: Industries. Land use. Labor: Special industries and trades: Construction industry

Country of publisher: Russian Federation

Language of fulltext: Russian, English

Full-text formats available: PDF

 

AUTHORS


Smirnov Vladimir Alexandrovich (Moscow State University of Civil Engineering (MSUCE))

EDITORIAL INFORMATION

Blind peer review

Editorial Board

Instructions for authors

Time From Submission to Publication: 8 weeks

 

Abstract | Full Text

The article deals with the probability analysis for a vibration isolation system of high-precision equipment, which is extremely sensitive to low-frequency oscillations even of submicron amplitude. The external sources of low-frequency vibrations may include the natural city background or internal low-frequency sources inside buildings (pedestrian activity, HVAC). Taking Gauss distribution into account, the author estimates the probability of the relative displacement of the isolated mass being still lower than the vibration criteria. This problem is being solved in the three dimensional space, evolved by the system parameters, including damping and natural frequency. According to this probability distribution, the chance of exceeding the vibration criteria for a vibration isolation system is evaluated. Optimal system parameters - damping and natural frequency - are being developed, thus the possibility of exceeding vibration criteria VC-E and VC-D is assumed to be less than 0.04.