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Analysis of structural damping
2006 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

One important parameter in the study of dynamic systems is material damping. It is defined as the ability of a material to absorb vibration by internal friction and convert the mechanical energy into heat. In spite of its importance in the study of rotating machinery, it has not been studied deeply because of the difficulty analyzing and testing its different types and mechanisms. This master thesis presents a new method to measure damping in mechanical systems. The mechanical system analyzed in this essay is a rotating shaft. The thesis consists of two different parts: a theoretical analysis and experimental work. Regarding the theoretical analysis, two different methods are explained. The first method is based on the moments, stresses and strains involved in the system and it is the basis to design the experimental set up. The second method is based on the energy and it is proposed to check the validity of the results from the experiment. On the other hand, two tasks are developed in the experimental work: • To design the set up for the experiment and assemble it. • To carry out the experiment with different material in order to check the validity of the proposed method.

Place, publisher, year, edition, pages
2006.
Keyword [en]
Technology, damping, theoretical analysis, experimental work
Keyword [sv]
Teknik
Identifiers
URN: urn:nbn:se:ltu:diva-51018ISRN: LTU-EX--06/006--SELocal ID: 83fc2e78-c7ff-4948-89b4-58ee1df6a11aOAI: oai:DiVA.org:ltu-51018DiVA: diva2:1024381
Subject / course
Student thesis, at least 30 credits
Educational program
Mechanical Engineering, master's level
Examiners
Note
Validerat; 20101217 (root)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
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  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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  • Other locale
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Output format
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