Reducing Transmitted Vibration Using Delayed Hysteretic Suspension

Abstract EN

Previous numerical and experimental works show that time delay technique is efficient to reduce transmissibility of vibration in a single pneumatic chamber by controlling the pressure in the chamber.

The present work develops an analytical study to demonstrate the effectiveness of such a technique in reducing transmitted vibrations.

A quarter-car model is considered and delayed hysteretic suspension is introduced in the system.

Analytical predictions based on perturbation analysis show that a delayed hysteretic suspension enhances vibration isolation comparing to the case where the nonlinear damping is delay-independent.