UNIVERSAL METHOD TO MEASURE DYNAMIC PERFORMANCE OF VIBRATION ISOLATORS UNDER STATIC LOAD

A two-mass method is proposed to determine the four-pole parameters of a uni-directional asymmetrical vibration isolator. It may be regarded as a universal testing procedure applicable to uni-directional or bi-directional, and asymmetrical or symmetrical vibration isolators under static load. Generally, vibration isolators incorporating some form of active control are examples of uni-directional asymmetrical vibration isolators. Experimental data are presented that validate the two-mass method.