TRANSACTIONS OF THE KRYLOV STATE RESEARCH CENTRE

Science journal

 
ISSN (print) 2542-2324 /(online) 2618-8244


Articles of The Transactions of KSRC








Investigation of dynamic characteristics of STVR-400K spiral-cable vibration isolator



Full text article ( in russian)

Year

 
2020

Issue

 
391

Volume

 
1

Pages

 
180-184

Caption

 
Investigation of dynamic characteristics of STVR-400K spiral-cable vibration isolator

Authors

 
Budnichenko M., Golubkin A., Nekrasov V.

Keywords

 
cross spectral analysis, vibration isolator, vibroacceleration, force sensor, dynamic force, tests, mechanical loss coefficient, mechanical impedance, servohydraulic vibrator, static load, frequency dependence

DOI

 
10.24937/2542-2324-2020-1-391-180-184

Summary

 
Object and purpose of research. This paper discusses STVR-400K spiral-cable vibration isolators. The purpose of this work is to study their dynamic characteristics under nominal static load.
Subject matter and methods.Vibration isolators were tested on a servohydraulic testing machine of JSC PO Sevmash, which is a part of dynamic testing facilities for vibration-isolating structures. The study followed the method of mechanical impedances measurements for vibration-isolating structures under static loads.
Main results. The main result of the work is derivation of empirical formulas for frequency-dependent dynamic stiffness and natural frequency of STVR-400K vibration isolator at nominal static load.
Conclusion. The empirical formulas suggested in this work enable the calculation of natural frequency and other dynamic characteristics for vibration-isolating fastener consisting of STVR-400K vibration isolators taking into account frequency dependence of their dynamic stiffness.

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ISSN (print) 2542-2324 / ISSN (online) 2618-8244

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