Optimal parameters of dynamic vibration absorber for linear damped rotary systems subjected to harmonic excitation

Vietnam Journal of Mechanics

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Field Value
 
Title Optimal parameters of dynamic vibration absorber for linear damped rotary systems subjected to harmonic excitation
 
Creator Phuc, Vu Duc
Canh, Tong Van
Lieu, Pham Van
 
Subject dynamic vibration absorber; torsional excitation; optimazed parameters; rotary systems
 
Description Dynamic vibration absorber (DVA) is a simple and effective device for vibration absorption used in many practical applications. Determination of suitable parameters for DVA is of significant importance to achieve high vibration reduction effectiveness. This paper presents a method to find the optimal parameters of a DVA attached to a linear damped rotary system excited by harmonic torque. To this end, a closed-form formula for the optimum tuning parameter is derived using the fixed-point theory based on an assumption that the damped rotary systems are lightly or moderately damped. The optimal damping ratio of DVA is found by solving a set of non-linear equations established by the Chebyshev's min-max criterion. The performance of the proposed optimal DVA is compared with that obtained by existing optimal solution in literature. It is shown that the proposed optimal parameters allow to obtain superior vibration suppression compared to existing optimal formula. Extended simulations are carried out to examine the performance of the optimally designed DVA and the sensitivity of the optimum parameters. The simulation results show that the improvement of the vibration performance on damped rotary system can be as much as 90% by using DVA.
 
Publisher Publishing House for Science and Technology
 
Contributor Hung Yen University of Technology and Education, Vietnam
 
Date 2020-12-27
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion

 
Format application/pdf
 
Identifier http://vjs.ac.vn/index.php/vjmech/article/view/14897
10.15625/0866-7136/14897
 
Source Vietnam Journal of Mechanics; Vol 42, No 4 (2020); 385-400
Vietnam Journal of Mechanics; Vol 42, No 4 (2020); 385-400
0866-7136
0866-7136
 
Language eng
 
Relation http://vjs.ac.vn/index.php/vjmech/article/view/14897/pdf
http://vjs.ac.vn/index.php/vjmech/article/downloadSuppFile/14897/3400
http://vjs.ac.vn/index.php/vjmech/article/downloadSuppFile/14897/3437
 
Rights Copyright (c) 2020 Vietnam Academy of Science and Technology
 

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