MR Inserts for Shock Wave Reduction in Warship Structures

초록

Underwater explosion that has high energy brings about the shock waves and the pulsating gas bubbles. In general, structural vibration from the shock waves is more serious than that of pulsating gas bubbles. The shock waves may damage the important fragile structures and equipment in the ship. This paper demonstrates the possibility of shock wave reduction in Magneto-Rheological (MR) inserts. To experimentally verify the MR insert, Mr insert in an aluminum plate is made and two piezoelectric disks are used as wave transmitter and receiver. By measuring the transmission ratio between the transmitter and receiver, the shock wave attenuation possibility of MR insert in tested. Details of the experiments are addressed.