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Förbättring av passivdämpande hörselskydd
University of Skövde, School of Engineering Science.
University of Skövde, School of Engineering Science.
2017 (Swedish)Independent thesis Basic level (degree of Bachelor), 20 credits / 30 HE creditsStudent thesisAlternative title
Improvement of Passive Earmuffs (English)
Abstract [sv]

Magnus Öhnström och Victor Göhlin studenter på Designingenjörsprogrammet vid Högskolan i Skövde har i samverkan med Hellberg Saftey AB studerat förbättringsåtgärder för passivdämpande hörselskydd. Med mål att skapa en grundkåpa som kan anpassas för olika dämpningsgrader. För att uppnå detta har det gjorts en förstudie med en omfattande konkurrentanalys. Uppdraget har inneburit att testa och utvärdera kåpkonstruktion med kåpskal, volymring, tätningsring och absorbent. Från detta dras slutsatser med hjälp av en Akustisk Test Fixtur (ATF) i Hellbergs ljudlabb. Olika förbättringar kombineras till koncept som slutligen skickats till Tyskland för verifikation. Utifrån de erhållna resultaten sker en viss vidareutveckling av volymringen.  

Abstract [en]

Magnus Öhnström and Victor Göhlin are two design engineer students from the University of Skövde. To obtain their bachelor in engineering they have completed a study for Hellberg Safety to improve the sound dampening effect in their passive earmuffs. The goal is a standard shell that can be optimized for different grades of sound dampening. In order to obtain knowledge a pilot study was performed. This included an analysis of one of the major competitor’s products. In order to reach the goal, the shell, absorber and cushion had to be examined. Modifications made were evaluated with an Acoustic Test Fixture (ATF) located in Hellbergs sound lab. Different modifications were combined, evaluated and sent to Germany for further evaluation. From the given results parts of the shell were further developed.

Place, publisher, year, edition, pages
2017. , 76 p.
Keyword [en]
earmuff, earmuffs, ear-muff, ear-muffs, ear, hearing, protection, passive, sound, noise
Keyword [sv]
hörselskydd, hörsel, skydd, öra, öron, ljud, buller, hörselskada, passiv, passiva, personlig skyddsutrustning
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:his:diva-14381OAI: oai:DiVA.org:his-14381DiVA: diva2:1155660
External cooperation
Hellberg Safety AB
Subject / course
Product Design Engineering
Educational program
Product Design Engineer
Supervisors
Examiners
Available from: 2017-11-08 Created: 2017-11-08 Last updated: 2017-11-08Bibliographically approved

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fulltext(5076 kB)1 downloads
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CiteExportLink to record
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Citation style
  • apa
  • ieee
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  • Other style
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  • de-DE
  • en-GB
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  • Other locale
More languages
Output format
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