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Optimization of Pneumatic Handheld Drills
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.).
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.).
2016 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [sv]

Denna rapport sammanfattar en studie kring optimering av två serier av handhållna pneumatiska borrar med pistolhandtag. Målet med studien är att höja effektnivån på verktygen med bibehållen ergonomi så som ljudnivå samt andra attribut som yttre dimensioner på verktygen. CFD simulering används för flödesanalys samt för identifiering av tryckfall i verktygen och ny design. I samband med simuleringen genomförs tester av effektnivå, ljudnivå samt tryckfall för utvärdering av verktygens prestanda. Prototyper framtas och testas i effekt- och ljudnivåprov. Slutsatsen från detta examensarbete är att det finns potential för verktygen gällande höjd effektnivå samt att det bör följas upp med fler tester av större population som ett nästa steg efter detta projekt.

Abstract [en]

This thesis is a study about optimization of two series of handheld pneumatic pistol drills. The goal is to investigate the possibility of increasing power levels while maintaining ergonomic characteristics regarding sound level and other attributes such as tool size. In the study CFD simulation software FloEFD is used for flow analysis and identifying pressure distribution over the tools. The simulations are combined with testing where power, sound and pressure drop tests are performed for validation and evaluation of the tools’ performance. Prototypes are designed and evaluated through power and sound level tests. The outcome of this thesis shows potential for improvements of the tools concerning power level and it is suggested that more tests are performed on a bigger population as future development of this project.

Place, publisher, year, edition, pages
2016. , 79 p.
Series
, MMK 2016:87 MKN 166
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-190148OAI: oai:DiVA.org:kth-190148DiVA: diva2:951791
Supervisors
Examiners
Available from: 2016-08-10 Created: 2016-08-10 Last updated: 2016-08-10Bibliographically approved

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Machine Design (Dept.)
Mechanical Engineering

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