Structure-Borne Sound Transfer Functions of a Compound Flexible Pipe Connection with a 90 Degree Bend

摘要

The sound transfer functions of a compound flexible pipe connection with a 90 deg bend were determined using an excitation mass and a seating mass of 20 Kg, and water or air filled bellows. The connection is used for the resiliently mounted diesel engines aboard a minehunter. The results are given as function of the excitation frequency of up to 1 KHz. The analysis of the measured pressure inside the bellows indicates fluid-borne sound transfer predominance.