Efficiency of Dynamic Vibration Dampers for Massive Structures on Non-Rock Bases

2021 ◽  
Vol 58 (1) ◽  
pp. 48-55
Author(s):  
O. P. Nesterova ◽  
A. M. Uzdin
Author(s):  
V.P. Podchezertsev ◽  
S.V. Topilskaya

The article discusses criteria for selecting the vibration protection for the spacecraft inertial orientation system. The considered vibration protection system allows providing acceptable amplitude acceleration for the gyroscopic device sensitive elements under vibration impact on the device body during the spacecraft launching and high angular stability of the position of the sensitive elements relative to the inertial coordinate system during a long period of operation (15 years) in orbit. The proposed vibration protection system consists of shock absorbers (springs) with stable high elastic characteristics under all factors of operation in the outer space and dynamic vibration dampers. The article presents a method for determining the parameters of dynamic vibration dampers taking into account the characteristics of the shock absorber, critical for the damping system of an inertial device. The proposed method for adjusting dynamic vibration dampers consists in suppressing vibrations at the natural frequency f1 of the shock absorption system and providing acceptable values of the gain coefficients of the structure resonant vibration amplitudes near the natural frequency f1. Certain characteristics of the damping system allow realizing the permissible vibration amplification coefficients at resonance, without significantly affecting the level of vibration suppression in the natural frequency zone of the vibration protection object


2016 ◽  
Vol 150 ◽  
pp. 1245-1251
Author(s):  
M.V. Lyashenko ◽  
A.V. Pobedin ◽  
P.V. Potapov

2009 ◽  
Vol 48 (3) ◽  
pp. 345-350 ◽  
Author(s):  
D. V. Balandin ◽  
I. A. Fedotov

2019 ◽  
Vol 52 (15) ◽  
pp. 531-536
Author(s):  
Takeshi Mizuno ◽  
Takahito Iida ◽  
Yuji Ishino ◽  
Masaya Takasaki ◽  
Daisuke Yamaguchi

Sign in / Sign up

Export Citation Format

Share Document