Vibration Isolation of Precision Objects

The need for vibration isolation of precision and vibrationsensitive objects is increasing continuously. Vibration isolation systems must comply with contradictory specifications, such as requiring reduced stiffness of isolators for better isolation, but higher stiffness for better performance of the object. Recently, expensive active isolation systems have been used to resolve these contradictions. This article shows that a proposed model for vibration isolation of precision objects together with the use of ‘smart’ constant natural frequency (CNF) isolators substantially widens the application range of inexpensive and reliable passive isolators.