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Effect of Bolted Joint Preload on St...

Xu, Weiwei.

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Effect of Bolted Joint Preload on Structural Damping.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Effect of Bolted Joint Preload on Structural Damping./
Author:	Xu, Weiwei.
Description:	159 p.
Notes:	Source: Masters Abstracts International, Volume: 52-01.
Contained By:	Masters Abstracts International52-01(E).
Subject:	Mechanical engineering. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1542292
ISBN:	9781303267703

Effect of Bolted Joint Preload on Structural Damping.
Xu, Weiwei.

Effect of Bolted Joint Preload on Structural Damping. - 159 p.

Source: Masters Abstracts International, Volume: 52-01.

Thesis (M.S.M.E.)--University of South Florida, 2013.

This item is not available from ProQuest Dissertations & Theses.

Bolted joints are integral parts of mechanical systems, and bolt preload loss is one of the major failure modes for bolted joint structures. Understanding the damping and frequency response to a varying preload in a single-bolted lap-joint structure can be very helpful in predicting and analyzing more complicated structures connected by these joints.

ISBN: 9781303267703Subjects--Topical Terms:

649730
Mechanical engineering.

Effect of Bolted Joint Preload on Structural Damping.
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020 $a 9781303267703
035 $a (MiAaPQ)AAI1542292
035 $a AAI1542292
040 $a MiAaPQ $c MiAaPQ
100 1 $a Xu, Weiwei. $3 3173261
245 1 0 $a Effect of Bolted Joint Preload on Structural Damping.
300 $a 159 p.
500 $a Source: Masters Abstracts International, Volume: 52-01.
500 $a Adviser: Daniel P. Hess.
502 $a Thesis (M.S.M.E.)--University of South Florida, 2013.
506 $a This item is not available from ProQuest Dissertations & Theses.
506 $a This item must not be sold to any third party vendors.
506 $a This item must not be added to any third party search indexes.
520 $a Bolted joints are integral parts of mechanical systems, and bolt preload loss is one of the major failure modes for bolted joint structures. Understanding the damping and frequency response to a varying preload in a single-bolted lap-joint structure can be very helpful in predicting and analyzing more complicated structures connected by these joints.
520 $a In this thesis, the relationship between the bolt preload and the natural frequency, and the relationship between the bolt preload and the structural damping, have both been investigated through impact hammer testing on a single-bolted lap-joint structure. The test data revealed that the bolt preload has nonlinear effects on the structural damping and on the natural frequency of the structure. The damping ratios of the test structure were determined to increase with decreasing preload. An increase in structural damping is beneficial in most engineering circumstances, for it will reduce the vibrational response and noise subjected to external excitations. It was also observed that the modal frequency increased with increasing preload, but remained approximately constant for preload larger than 30% in the bolt yield strength. One application for studying the preload effect is the detection for loose bolts in structures. The possibility of using impact testing for estimating preload loss has been confirmed, and the modal damping was determined to be a more sensitive indicator than the natural frequency in a single-bolted lap-joint structure.
590 $a School code: 0206.
650 4 $a Mechanical engineering. $3 649730
690 $a 0548
710 2 $a University of South Florida. $b Mechanical Engineering. $3 1680697
773 0 $t Masters Abstracts International $g 52-01(E).
790 $a 0206
791 $a M.S.M.E.
792 $a 2013
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1542292