An analysis of sound and vibratory transmission and reflection losses in a fluid filled planar piping system which consists of straight pipe segments, flexible hose, elbows and/or U-joints is discussed in this paper. Calculation of the transmission losses for a hose-pipe system has been widely discussed in the literature. The reflection characteristics of a hose-pipe system, however, have not received proper attention. In this paper, we calculate the reflection and transmission coefficients of a piping system simultaneously. The numerical example shows that very large pressure and bending wave transmission losses occurred in a hosepipe system are actually caused by reflection rather by attenuation or dissipation by the system.
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