Theoretically and Parametrically Investigation on Operation of Variable Diameter Impact Damper in Free Vibrations of a 1-DOF System

Authors

1 PhD Student, Mechanical Engineering Department, Ferdowsi University of Mashhad, Mashhad, Iran.

2 Professor, Mechanical Engineering Department, Ferdowsi University of Mashhad, Mashhad, Iran.

Abstract

Linear particle chain impact damper (LPCID) is a kind of impact dampers that the impact masses are placed in a chain along the straight line. This damper is one of a kind of multi-mass impact damper whose performance is superior to single-mass impact dampers. Researches on the performance of the linear-particle chain impact damper have been numerically and laboratorial conducted so far. In addition, no research has ever been done on the type of mass layout at this demurrage. In this paper, an analytical analysis of the performance of the rigid LPCID in free vibrations of a 1-DOF system is carried out parametrically. In this regard, the effect of parameters such as mass number, mass ratio, distance gap, restitution coefficient and type of mass layout on the damper function have been investigated. In order to investigate the effect of mass layout, two types Impact Damper, three-mass and five-mass, are considered. The layouts are uniform, eight, linear, and diamond. After review, it has been determined that the efficiency of diamond layout is better than other layouts.

Keywords

Main Subjects


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