Meritve zvočne izolirnosti pločevinastih stranic za kondenzacijski sušilnik perila, z dodanimi plastmi granuliranega materiala in vode

zaključna naloga Razvojno raziskovalnega programa I. stopnje Strojništvo

Iztok Gradišnik (Author), Jurij Prezelj (Mentor)

Abstract

Živimo v času hitrega napredka tehnologije, kar je privedlo do tega, da obstaja vse več naprav, ki nam lajšajo vsakodnevno življenje. Dober primer so gospodinjski aparati brez katerih si ne znamo več predstavljati življenja. Ker pa so nekateri gospodinjski aparati zelo hrupni, podjetja težijo k zmanjšanju zvočne moči aparata, s čimer želijo narediti izdelek privlačnejši potrošnikom. V diplomski nalogi smo si pogledali, kako lahko izboljšamo zvočno izolirnost pločevinaste stranice kondenzacijskega sušilnega stroja. Izdelali smo leseno ohišje v obliki škatle, s stenami visoke zvočne izolirnosti. Vanjo smo vstavili zvočnik in ga zaprli z merjenim vzorcem pločevinaste stranice. Vpetje le-te na škatlo je bilo togo. S tem smo simulirali pritrditev stranice na kondenzacijski sušilni stroj. Zanimalo nas je, kako se spreminja zvočna izolirnost pločevinaste stranice, če ji povečujemo površinsko gostoto tako, da nanjo dodamo plast granuliranega materiala oziroma plast vode. Ugotovili smo, da 39 mm plast dodane vode izboljša zvočno izolirnost obstoječe stranice za 2 dB.

Keywords

diplomske naloge;zvok;raven zvočnega tlaka;zvočna izolirnost;zvočna absorptivnost;voda kot zvočni izolator;kondenzacijski sušilni stroj;

Data

Language:	Slovenian
Year of publishing:	2020
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FS - Faculty of Mechanical Engineering
Publisher:	[I. Gradišnik]
UDC:	534.83:648.336(043.2)
COBISS:	28824579
Views:	652
Downloads:	93
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Sound insulation measurement of steel plates for tumble dryer with added granular material and water layer
Secondary abstract:	We live in time with great technology progress and the result of that is big selection of devices that make our lives easier. Good example are home appliances, without which many of us cannot imagine life anymore. Since many of the devices make a lot of noise during operating, the companies have started to look into sound power reduction to make devices more appealing to customers. In an assignment we have tried to improve sound insulation of steel plates for tumble dryer. We have made a wooden housing with high sound insulation in which we have inserted sound speaker and sealed the box with steel plate from tumble dryer. We have fastened the steel plate on wooden box with screws to simulate the same conditions as in tumble dryer. Materials used for improving sound insulation were sand and water. We have found out that 39 mm thick layer of water improves sound insulation of steel plate for 2 dB.
Secondary keywords:	thesis;sound;sound pressure level;sound insulation;sound absorption;water as material for sound insulation;tumble dryer;
Type (COBISS):	Final paper
Study programme:	0
Thesis comment:	Univ. v Ljubljani, Fak. za strojništvo
Pages:	XIV, 39 f.
ID:	12027714