2056 KB30 KB199920252014Almeida, Fabrício César Lobato deBrennan, Michael JohnDray, SimonJoseph, Phillip FrederickPaschoalini, Amarildo TaboneWhitfield, Stuartštevilka:5letnik:60str. 298-306, SI 60ISSN:0039-2480COBISSID:13450523URN:URN:NBN:SI:doc-TRP2YU6BenZveza strojnih inženirjev in tehnikov Slovenije et al.Strojniški vestnikidentifikacija puščanjaplastične cevivodna industrijazmanjševanje valovanjaMeasurement of wave attenuation in buried plastic water distribution pipes|Leaks in pipes are a common issue encountered in the water industry. Acoustic methods are generally successful in finding and locating leaks in metallic pipes, however, they are less effective when applied to plastic pipes. This is because leak-noise signals are heavily attenuated due to high damping in the pipe-wall and sound radiation into the soil. As result, high frequency leak noise does not travel long distances. To determine how far leak noise may travel in a pipe at any frequency, the attenuation of the wave responsible for leak noise propagation should be known. In this paper a new method to estimate this is described. The method is then applied to some measurements made on a bespoke pipe-test rig in the UK, and the results are compared with theoretical predictionsTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaUniverza v Ljubljani, Fakulteta za strojništvo