Inlämning av Examensarbete / Submission of Thesis

Kingsley Onyeka Ezeoma; Kai Yang ISRN: BTH-AMT-EX--2009/D-07--SE, pp. 88. ING/School of Engineering, 2009.

The work

Författare / Author: Kingsley Onyeka Ezeoma, Kai Yang
deaccurate@yahoo.com, epiphany_edwen@hotmail.com
Titel / Title: ACOUSTIC MEASUREMENTS OF THE SLOW DYNAMICS OF THIN SHEETS.
Abstrakt Abstract:

Based on the relationship between resonance and tension on thin sheets, an experimental approach was adopted to test the slow dynamic behaviour of Paper, Low Density Polyethylene (LDPE), the laminate of both and same laminate with Aluminium inclusive. We used a non contact acoustic excitation and non contact laser sensing. We chose to use a non contact acoustic excitation for its efficiency. A mixed dynamic extension was applied to the specimens including periods of dynamic extension and a long time of constant extension (conditioning).

The modal parameters were extracted via a laser vibrometer using the LabVIEW software. The results enabled us to show the slow dynamic characteristics of the thin sheets.

Ämnesord / Subject: Maskinteknik - Mechanical Engineering\Structural Mechanics

Nyckelord / Keywords: Slow Dynamics, Relaxation, Recovery, Acoustic, Measurement, Laser-sensing, non-contact, LabVIEW.

Publication info

Dokument id / Document id:
Program:/ Programme Masters Programme in Mechanical Engineering 120 ECTS
Registreringsdatum / Date of registration: 04/10/2010
Uppsatstyp / Type of thesis: Masterarbete/Master's Thesis (120 credits)

Context

Handledare / Supervisor: Claes Hedberg, Professor Mech. Eng., BTH
claes.hedberg@bth.se
Organisation / Organisation: Blekinge Institute of Technology
Institution / School: ING/School of Engineering

+46 455 38 50 00
Anmärkningar / Comments:

Ezeoma Kingsley O.
Gyllenstjarnas Vag 18 Lgh 15,
37140,
Karlskrona.
0046736597114,
deaccurate@yahoo.com, goodking707@yahoo.com,

Kai Yang,
epiphany_edwen@hotmail.com,
0046736158980

Files & Access

Bifogad uppsats fil(er) / Files attached: ezeomakothesis.pdf (741 kB, öppnas i nytt fönster)