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Development of an iterative method f...

Wong, Chun Nam (Simon).

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Development of an iterative method for structural damage detection and a stochastic model for the random impact series method in modal testing.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Development of an iterative method for structural damage detection and a stochastic model for the random impact series method in modal testing./
Author:	Wong, Chun Nam (Simon).
Description:	109 p.
Notes:	Source: Dissertation Abstracts International, Volume: 65-06, Section: B, page: 3118.
Contained By:	Dissertation Abstracts International65-06B.
Subject:	Engineering, Mechanical. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3137040
ISBN:	0496842358

Development of an iterative method for structural damage detection and a stochastic model for the random impact series method in modal testing.
Wong, Chun Nam (Simon).

Development of an iterative method for structural damage detection and a stochastic model for the random impact series method in modal testing. - 109 p.

Source: Dissertation Abstracts International, Volume: 65-06, Section: B, page: 3118.

Thesis (Ph.D.)--University of Maryland, Baltimore County, 2004.

In this research, NDE methods, including ultrasonic measurement, magnetic particle inspection, penetrant test and visual inspection, were reviewed. A general-order, multiple-parameter perturbation method for eigenvalue problems was developed, which used iteratively with an optimization method such as, generalized inverse, gradient and quasi-Newton method. Numerical simulations on mass-spring system, beam structure and space frame demonstrated the robustness of the algorithm in detecting location and extent of the damage. Moreover, the effects of measurement noise and reduced measurements on performance of the algorithm were evaluated.

ISBN: 0496842358Subjects--Topical Terms:

783786
Engineering, Mechanical.

Development of an iterative method for structural damage detection and a stochastic model for the random impact series method in modal testing.
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020 $a 0496842358
035 $a (UnM)AAI3137040
035 $a AAI3137040
040 $a UnM $c UnM
100 1 $a Wong, Chun Nam (Simon). $3 1935620
245 1 0 $a Development of an iterative method for structural damage detection and a stochastic model for the random impact series method in modal testing.
300 $a 109 p.
500 $a Source: Dissertation Abstracts International, Volume: 65-06, Section: B, page: 3118.
500 $a Director: Weidong Zhu.
502 $a Thesis (Ph.D.)--University of Maryland, Baltimore County, 2004.
520 $a In this research, NDE methods, including ultrasonic measurement, magnetic particle inspection, penetrant test and visual inspection, were reviewed. A general-order, multiple-parameter perturbation method for eigenvalue problems was developed, which used iteratively with an optimization method such as, generalized inverse, gradient and quasi-Newton method. Numerical simulations on mass-spring system, beam structure and space frame demonstrated the robustness of the algorithm in detecting location and extent of the damage. Moreover, the effects of measurement noise and reduced measurements on performance of the algorithm were evaluated.
520 $a A novel stochastic model was developed to describe a random series of impacts in modal testing. The number of the force pulses in a finite time interval was modeled as a Poisson process. The force pulses in the series were assumed to have an arbitrary, deterministic shape function with random amplitudes and arrival times. This model was used to extract modal parameters of the space frame.
590 $a School code: 0434.
650 4 $a Engineering, Mechanical. $3 783786
650 4 $a Applied Mechanics. $3 1018410
690 $a 0548
690 $a 0346
710 2 0 $a University of Maryland, Baltimore County. $3 743195
773 0 $t Dissertation Abstracts International $g 65-06B.
790 1 0 $a Zhu, Weidong, $e advisor
790 $a 0434
791 $a Ph.D.
792 $a 2004
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3137040