Aktívna norma | Vydaná: 17.08.2017

ISO 20155:2017

Ships and marine technology — Test method of flow induced in-pipe noise source characteristics for a ship-used pump
(Navires et technologie maritime — Méthode pour déterminer les caractéristiques des sources de bruit induites par l´écoulement dans les tuyaux d´une pompe de navire)

Dostupné jazyky: Anglicky

Dostupné prevedenie: Elektronické PDF, Tlačené

od 4 207.30 CZK zobraziť na eshopu

Podrobné informácie

Označenie: ISO 20155:2017

Dátum vydania: 17.08.2017

Stránok: 24

Krajina: Medzinárodná technická norma

Kde kúpiť?

Môžete zakúpiť na eshop.normservis.sk

Anotácia

Description / Abstract: ISO 20155:2017 specifies a test method for determining flow induced in-pipe noise source characteristics of a ship-used pump as a two-port sound source in laboratory conditions by measuring acoustic pressures in the pipe reaches of inlet and outlet. The test method is applicable to all types of centrifugal pumps with a diameter over 50 mm operating under steady conditions. The suitable frequency range of the test method is about 10 Hz to 1 000 Hz, and the upper frequency is dependent on the inner diameter of the pipe, in which the plane acoustic wave propagates.

Populárna vydavatelia

celý katalóg