Performance Analysis of a Novel Single Flywheel Resettable-Inertia Damper

EasyChair Preprint 11330

Abstract

The clutching inertia model is an ideal BangBang control model that is difficult to achieve in practice through passive control. In this paper, a single flywheel resettable-inertia damper (SRID) is proposed based on the clutching inertia device. This device is implemented with a rack-and-pinion system, commutation and shift system, and eddy current damping system with flywheel, which can create a vibration reduction effect in parallel with clutching inertia and damping. First, a simplified mechanical analysis model of this device is established. Then, a comparative analysis of the control effects of SRID and viscous damper is conducted in a single-degree-of-freedom (SDOF) structures under harmonic and seismic excitations. The results show that the SRID can achieve the same control effect as viscous damper with only a small damping coefficient, reflecting the role of clutching inertia. At the same time, according to the hysteresis curve, it also exhibits significant negative stiffness characteristics. The control device proposed in this paper can achieve a passive form of the BangBang control model to some extent, demonstrating promising application prospects.

Keyphrases: Passive control, clutching inertia, commutation and shift system, eddy current damping

@booklet{EasyChair:11330,
  author    = {Delei Yu and Qigang Liang and Luyu Li},
  title     = {Performance Analysis of a Novel Single Flywheel  Resettable-Inertia Damper},
  howpublished = {EasyChair Preprint 11330},
  year      = {EasyChair, 2023}}