Dynamic characteristics of quasi-zero stiffness vibration isolation system for coupled dynamic vibration absorber

2021 ◽  
Author(s):  
Yanqi Liu ◽  
Wen Ji ◽  
Longlong Xu ◽  
Huangsen Gu ◽  
Chunfang Song
Keyword(s):  
Dynamic Characteristics ◽  
Vibration Isolation ◽  
Vibration Absorber ◽  
Dynamic Vibration Absorber ◽  
Isolation System ◽  
Vibration Isolation System ◽  
Dynamic Vibration

Active Vibration Isolation System with an Active Dynamic Vibration Absorber

2016 ◽  
Vol 2016 (0) ◽  
pp. 422
Author(s):  
Syed Mamun R RASID ◽  
Takeshi MIZUNO ◽  
Masaya TAKASAKI ◽  
Yuji ISHINO ◽  
Masayuki HARA ◽  
...  
Keyword(s):  
Vibration Isolation ◽  
Vibration Absorber ◽  
Dynamic Vibration Absorber ◽  
Isolation System ◽  
Vibration Isolation System ◽  
Dynamic Vibration ◽  
Active Vibration ◽  
Active Vibration Isolation

Theoretical Analysis and Experimental Study of a Cantilever Beam-Type Dynamic Vibration Absorber

2013 ◽  
Vol 415 ◽  
pp. 436-441
Author(s):  
Jun Zhao ◽  
Chao Yang Ma
Keyword(s):  
Cantilever Beam ◽  
Vibration Isolation ◽  
Vibration Absorber ◽  
Dynamic Vibration Absorber ◽  
Isolation System ◽  
Absorption Frequency ◽  
Vibration Absorption ◽  
Response Characteristics ◽  
Dynamic Vibration ◽  
Beam Type

Aiming at the limitation problem of constant dynamic parameters for classical vibration absorber, a new cantilever beam-type absorber device is designed which is composed of a continuous beam and mass block, a vibration isolation system model with a beam-type absorber is established, the absorption frequency of the mass block at different positions is calculated. And based on the software of ADAMS, the frequency response characteristics of the system are obtained. Finally, the good vibration absorption of the beam absorber is verified. The results show that the feasibility and effectiveness of cantilever beam-type absorber is confirmed, and the dynamic vibration absorber with continuous adjustable parameters is achieved.

scholarly journals The active dynamic vibration damper in non-stationary operation of a vibroactive unit

2021 ◽  
pp. 13-17
Author(s):  
D. V. Sitnikov ◽  
◽  
A. A. Burian ◽  
Keyword(s):  
Vibration Isolation ◽  
Low Frequency ◽  
Resonance Region ◽  
Frequency Region ◽  
Vibration Damper ◽  
Passive System ◽  
Isolation System ◽  
Vibration Isolation System ◽  
Dynamic Vibration ◽  
Impulse Characteristics

The paper considers a vibration isolation system, in which a force is applied to the moving mass of the active dynamic vibration damper by an actuator in proportion to the measured value of the base response. The amplitude-frequency and impulse characteristics are plotted depending on the parameters of the system, assuming the actuator without distortion generates the force proportional to the base response. It is shown that the considered vibration isolation system is quite effective in the low-frequency region, including in the resonance region of the passive system, both in stationary and nonstationary modes of vibroactive forces

VIBRATION ISOLATION SYSTEM WITH ACTIVE DYNAMIC VIBRATION DAMPENER FOR NON-STATIONARY OPERATION OF THE PISTON MACHINE

2021 ◽  
Author(s):  
Yu. A. Buryan ◽  
◽  
D. V. Sitnikov ◽  
M. V. Silkov ◽  
A. A. Buryan ◽  
...  
Keyword(s):  
Vibration Isolation ◽  
Isolation System ◽  
Vibration Isolation System ◽  
Dynamic Vibration ◽  
Stationary Operation

В работе рассмотрен активный динамический гаситель колебаний с компенсацией виброактивных сил с управлением по реакции основания для увеличения эффективной виброизоляции при нестационарных режимах работы поршневой машины. В качестве пассивной системы виброизоляции предложена и рассмотрена пневмоопора с дополнительным объёмом, соединённая дросселем. В стационарном зарезонансном режиме пневмоопора позволяет уменьшить собственную частоту подвески и улучшить виброизоляцию. Основное внимание в работе уделено оценке эффективности применения активного гасителя колебаний при нестационарном режиме работы поршневой машины. Составлена математическая модель исследуемой системы и путём численного решения дифференциальных уравнений получены значения усилий на основание с использованием активного динамического гасителя колебаний. Показано на примере, что в режиме «включение - остановки» поршневой машины применение активного динамического гасителя колебаний обеспечивает высокую эффективность виброизоляции в окрестности резонансных частот.

Vibration Isolation of the Quarter Car Model of Road Vehicle System using Dynamic Vibration Absorber

2020 ◽  
Vol 12 (5) ◽  
Author(s):  
Sakshi Sharma ◽  
Rakesh Chandmal Sharma ◽  
Sunil Kumar Sharma ◽  
Neeraj Sharma ◽  
Srihari Palli ◽  
...  
Keyword(s):  
Transfer Function ◽  
Vibration Isolation ◽  
Vibration Absorber ◽  
Dynamic Vibration Absorber ◽  
Road Vehicle ◽  
Quarter Car Model ◽  
Car Model ◽  
Dynamic Vibration ◽  
Vehicle System ◽  
Quarter Car

In cases where the natural frequencies of vibrations of a vehicle system are closed to the excitation frequencies from the road surface, dynamic vibration absorber provides the vibration isolation by shifting the resonant frequencies of the system. In the present work, the performance of a dynamic vibration absorber is evaluated with two degrees of freedom quarter car model of a road vehicle system when excited with deterministic inputs. The transmissibility of vibrations from the track to the sprung mass, the transfer function of sprung mass acceleration, the transfer function of suspension deflection and the transfer function of tire deflection is determined.

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