Simultaneous Vibration and Fatigue Optimization of an Inerter-based Vibration Isolation System

Čakmak, Damjan and Božić, Željko and Wolf, Hinko and Alujević, Neven (2017) Simultaneous Vibration and Fatigue Optimization of an Inerter-based Vibration Isolation System. = Simultaneous Vibration and Fatigue Optimization of an Inerter-based Vibration Isolation System. In: ICSID2017 - International Conference on Structural Integrity and Durability 2017, 15-18.08.2017., Dubrovnik, Hrvatska.

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Abstract

This paper presents an analysis of vibration-induced fatigue in a generalized, two degree-of-freedom vibration isolation system. The system consists of a source body and a receiving body, coupled through a passive isolator. The isolator consists of a spring, a damper, and an inerter. A broad frequency band excitation of the source body is assumed. Optimized system, in which the kinetic energy of the receiving body is minimized, is contrasted to two sub-optimal systems. This is done by comparing fatigue life of a helical spring in the system for four cases. The optimization is based on minimizing vibrations, but it also increases the number of cycles to failure of the considered spring. A significant portion of this improvement is due to the inclusion of an optimally tuned inerter in the isolator.

Item Type: Conference or Workshop Item (Lecture)
Keywords (Croatian): vibration isolation ; fatigue life ; inerter ; finite element method ; optimization
Subjects: TECHNICAL SCIENCE > Mechanical Engineering
Divisions: 1300 Department of Aeronautical Engineering > 1310 Chair of Aerodynamics
200 Department of Engineering Mechanics > 230 Chair of Mechanical Systems Dynamics
600 Department of Naval Engineering and Marine Technology > 620 Chair of Marine Structures Design
Indexed in Web of Science: No
Indexed in Current Contents: No
Date Deposited: 15 Dec 2017 15:34
Last Modified: 20 Aug 2018 08:48
URI: http://repozitorij.fsb.hr/id/eprint/8187

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