Optimasi Posisi dari Massa SDVA (1/20 Massa Sistem) untuk
Mereduksi Getaran Translasi-Rotasi pada Beam
Susastro
Departement of Mechanical Engineering, Adhi Tama Surabaya Institut of Technology
Jl. Arif Rahman hakim No. 100, Surabaya, Indonesia
Received 13 April 2017; Revised 16 April 2017; Accepted 20 April 2017, Published 27 April 2017
http://dx.doi.10.21063/JTM.2017.V7.39-45
Academic Editor: Asmara Yanto ([email protected])
*Correspondence should be addressed to [email protected]
Copyright © 2017 Susastro. This is an open access article distributed under the Creative Commons Attribution License.
Abstract
In many cases, amount of SDVA mass (single dynamic vibration absorber) which is used to dampen vibrations
is equal to 1/10 of the mass of the system. Meanwhile, the amount of additional mass is sometimes felt to be too
great if the mass system is also great. To resolve this problem, we use mass absorber with a much smaller size.
In this research, we did a simulation optimization of the use massa SDVA 1/20 on the beam, to damped
translation and rotation vibration from main system. The study began by building a 2 DOF vibration prototype
system with the addition of SDVA. Prototype modeled into mathematical equations and simulated to determine
the change vibration characteristics. In this simulation we provide changes in the excitation frequency and
distance of the center of mass SDVA future main system. From this research indicated that the addition of SDVA
capable of reducing vibration direction of translation by 98.53% that occurred at a frequency ratio of 1.
Whereas for rotational motion, vibration reduction which occurred amounted to 80.41%. From the results of
This research also concluded that translation and rotation vibration reduction are best obtained when the ratio
of the arms by r l = 0,9 with 75,84 % vibration reduction.
Keywords: Single dynamic vibration absorber, DVA, vibration