Optimasi Posisi dari Massa SDVA (1/20 Massa Sistem) untuk Mereduksi Getaran Translasi-Rotasi pada Beam
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 rl = 0,9 with 75,84 % vibration reduction.
Penulis: Susastro
Kode Jurnal: jptmesindd170241
