Machinery Isolation Featuring Rotational Inertial Mechanisms for Naval Applications
Abstract
A major priority of the US Navy is to reduce noise and vibration transmitted from machinery onboard vessels. A common approach to achieve reduced noise and vibration is to use isolation mounts, which limit the transmission of vibration from a vibration source to a point of attachment through the use of a low stiffness connection. The effectiveness of isolation systems typically increases with decreases in the stiffness of the isolation system; however, excessively low stiffness in an isolator significantly increases the static and low frequency response of the isolated mass and would result in dangerously large isolator stroke demands. This project will serve as a proof-ofconcept for a compact and lightweight isolation system that exploits rotational inertial mechanisms to provide an improved reduction of the transmission of vibration from machinery. The inertance produced by the studied rotational inertial mechanisms provides effective mass to the isolation layer without meaningfully increasing its physical mass. The use of rotational inertial mechanisms in an isolation system will allow for the effective reduction of transmitted forces, without compromising the displacement response of the isolated machinery. This proof-of-concept study will include both numerical / analytical efforts as well as experimental testing and model validation efforts.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jan 06, 2021
- Source ID
- N000142112122
Entities
People
- Nicholas E. Wierschem
Organizations
- Office of Naval Research
- United States Navy
- University of Tennessee