Affiliations: Systems Eng. Research Div., Korea Institute of
Machinery and Materials, Daejeon, 305-343, Korea | Super Century, Co., Yuseong, Daejeon, 305-150,
Korea | Future Tech, Co., Busan, 614-100, Korea | Smart Structures and Systems Lab., Inha University,
Incheon, 402-751, Korea | Naval Architecture & Ocean Eng., Chungnam
National University, Yuseong, Daejeon, 305-764, Korea | Agency for Defense Development, Jinhae,
Kyeongsangnamdo, 645-016, Korea | Dual Use Technology Center, Agency for Defense
Development, Yuseong, Daejeon, 305-150, Korea
Abstract: In naval ships, some methods or devices are acquired both to cut off
the transmission of vibration from shipboard machineries and to protect them
from external shock loading. One of the approaches is to install the passive
mountings between machinery and a flexible supporting structure. More advanced
performance has become necessary recently so far as at high frequencies in
order to retain the stealth function of certain types of naval vessels. For the purpose of this research, a novel hybrid mount for shipboard machinery
installed on naval ships was developed. The mount is combined with a rubber
mount and piezostack actuators. The rubber mount is one of the most popular and
effective passive mounts to have been applied to various vibration systems to
date. The piezostack actuator is featured by a fast response time, small
displacement and low power consumption. Through a series of experimental tests
conducted in accordance with MIL-M-17185A(SHIPS), MIL-M-17508F(SH), and
MIL-S-901D which are US military specifications related to the performance
requirements of the mount, it has been confirmed that the hybrid mount shows
more effective performance for use in naval ships.
Keywords: Hybrid mount, rubber element, piezostack actuator, military specification
