Abstract: A mount assembly includes a mount, a vibration mitigation element and a retention feature. The vibration mitigation element is within a portion of the mount. The retention feature is configured to cover an end of the vibration mitigation element, wherein the retention feature is tunable to provide a selected precompression of the vibration mitigation element and a selected rate for the vibration mitigation element.

Abstract: An isolator assembly (20) such as a cradle mount or a body mount assembly incorporates break-away features. An insert (70,70?) includes a thinned cross-sectional region (100) or a gap/interface (90) between insert portions (70a, 70b) that allow a bolt (24) to break-away under a predetermined load in a fore direction (80) and an aft direction (90). In addition, a retainer washer (50) may have an irregular configuration such as a tear-drop or clover-leaf configuration that cooperates with the insert (70, 70?) to allow the isolator assembly (20) to pull away in the negative z-direction under a predetermined load.