Publication Date

1998

Document Type

Dissertation/Thesis

First Advisor

Kim, Meung J.

Degree Name

M.S. (Master of Science)

Legacy Department

Department of Mechanical Engineering

LCSH

Plates (Engineering)--Vibration; Laminated materials--Vibration; Composite materials--Vibration

Abstract

In this thesis, the vibrational properties of composite plates with a cut are examined experimentally using a laser vibrometer and numerically using a finite element method. The samples are in the form of rectangular plates which are excited by random excitations of a shaker and are pounded upon by a laser jet which collects the displacements and feeds them to a data physics module which gives out the required displacement curves. The values obtained are verified theoretically using a finite element FORTRAN program. Orderly cuts of different dimensions along both directions of the fibers are made, the effect of such cuts on the vibration frequencies of the plate are studied, and the same have been verified using the program.

Comments

Includes bibliographical references (pages [51]-52)

Extent

x, 55 pages

Language

eng

Publisher

Northern Illinois University

Rights Statement

In Copyright

Rights Statement 2

NIU theses are protected by copyright. They may be viewed from Huskie Commons for any purpose, but reproduction or distribution in any format is prohibited without the written permission of the authors.

Media Type

Text

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