Observations of variability and repeatability in jointed structures

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dc.citation.firstpage282
dc.citation.journalTitleMechanical Systems and Signal Processing
dc.citation.lastpage307
dc.citation.volumeNumber129
dc.contributor.authorBrake, M.R.W.
dc.contributor.authorSchwingshackl, C.W.
dc.contributor.authorReuß, P.
dc.date.accessioned2019-08-12T14:49:59Z
dc.date.available2019-08-12T14:49:59Z
dc.date.issued2019
dc.description.abstractThe experimental study of joint mechanics has been limited in its effectiveness due to the high uncertainty associated with assemblies of sub-components. In particular, two categories of uncertainty are variability (the uncertainty in measurements of different, nominally identical parts) and repeatability (the uncertainty in measurements of the same set of parts). As a result, the uncertainty measured is often greater than the nonlinear characteristics being studied (such as amplitude dependent frequency and damping), which makes meaningful experimentation challenging. This paper analyzes the contributors to uncertainty in the form of variability and repeatability in order to make recommendations for methods to reduce the uncertainty and to redesign a joint to improve its dynamics. Experiments are summarized that investigate the role of experimental setup, interface roughness, settling versus wear, interface geometry (both meso-scale and macro-scale), and the structure surrounding the joint. From the results of these studies, recommendations for the measurement of nonlinearities in jointed structures are made.
dc.identifier.citationBrake, M.R.W., Schwingshackl, C.W. and Reuß, P.. "Observations of variability and repeatability in jointed structures." <i>Mechanical Systems and Signal Processing,</i> 129, (2019) Elsevier: 282-307. https://doi.org/10.1016/j.ymssp.2019.04.020.
dc.identifier.doihttps://doi.org/10.1016/j.ymssp.2019.04.020
dc.identifier.urihttps://hdl.handle.net/1911/106207
dc.language.isoeng
dc.publisherElsevier
dc.rightsThis is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Elsevier.
dc.subject.keywordJoint mechanics
dc.subject.keywordNonlinear dynamics
dc.subject.keywordExperimental variability
dc.subject.keywordExperimental repeatability
dc.subject.keywordContact mechanics
dc.subject.keywordTribomechadynamics
dc.titleObservations of variability and repeatability in jointed structures
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpost-print
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