Validation of a switchable stiffness system for shock isolation

A concept of a switchable stiffness device intended to provide improved shock isolation is presented. The concept is developed as a control strategy in two stages, namely the reduction of stiffness during a shock and the later suppression of residual vibrations switching between a minimum and a maximum stiffness values. Experimental validation is presented where a switchable stiffness device based on magnetic forces is developed. It is found that implementation of switchable stiffness can provide further advantages in shock isolation.