Andoko, Riduwan Prasetya, Feliks Sutrisno
In engineering systems, vibration is one of the many problems that appear. Vibration causes losses such as reduced performance, loss of energy, damage, and reduced comfort. Many methods have been developed to reduce vibration in engineering systems, one of which is the use of dynamic vibration absorbers (DVA). In this study, the vibration characteristics of the 2 DOF system added with DVA were analyzed experimentally and numerically. Experimental analysis was carried out by making several modeling of the vibration system which was then compared with numerical calculations. The mass of the DVA added to the system with 100 gram mass. Mass located at top of spring and then bottom of spring. As a result, the amount of mass in DVA affects the vibration characteristics (speed, frequency, amplitude, mass normalization, and frequency normalization). For this study, amplitude and frequency will be the main output from experimental and numerical approach. The difference between experimental and numerical results for all models is not more than 15%. So that the vibration model with the addition of the tested DVA can reach an agreement between the numerical and theoretical results. The 100 gram mass of DVA added at the top spring gives more 50% absorbtion and when mass added at the bottom of spring gives less than 25%. From this study, experimental and numerical approach give an agreement because the deviation is not more than 15% and the located mass at the of the spring gives better absorbtion. © 2024 American Institute of Physics Inc.. All rights reserved.
Mechanical Engineering Department, Engineering Faculty, State University of Malang, Semarang St. No. 5, East Java, Malang, 65145, Indonesia
