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Titolo:
An experimental approach for structural dynamic modification of fixture invibration test control
Autore:
Kim, JY; Jeong, WB; Lee, SB; Lee, BH;
Indirizzi:
Agcy Def Dev, Environm Test Lab, Taejon 300600, South Korea Agcy Def Dev Taejon South Korea 300600 t Lab, Taejon 300600, South Korea Pusan Natl Univ, Dept Mech Engn, Kumjung Ku, Pusan 609735, South Korea Pusan Natl Univ Pusan South Korea 609735 g Ku, Pusan 609735, South Korea
Titolo Testata:
JSME INTERNATIONAL JOURNAL SERIES C-MECHANICAL SYSTEMS MACHINE ELEMENTS AND MANUFACTURING
fascicolo: 2, volume: 44, anno: 2001,
pagine: 334 - 340
SICI:
1344-7653(200106)44:2<334:AEAFSD>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Keywords:
environmental vibration test; vibration teal fixture; vibration test control; experimental structural dynamic modification; anti-resonance;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
10
Recensione:
Indirizzi per estratti:
Indirizzo: Kim, JY Agcy Def Dev, Environm Test Lab, Taejon 300600, South Korea Agcy Def Dev Taejon South Korea 300600 aejon 300600, South Korea
Citazione:
J.Y. Kim et al., "An experimental approach for structural dynamic modification of fixture invibration test control", JSME C, 44(2), 2001, pp. 334-340

Abstract

In environmental vibration test, the fixture is inserted between the shaker and the, test specimen. It is desirable that the test specimen is excitedwith uniform force through the mounting points connected to the fixture. The flexural vibration of the fixture sometimes makes it impossible to excite th a specimen uniformly. The deviations of the transmitted force cause the under-test, especially at anti resonance frequencies, in vibration test control. In this paper, the, method of experimental structural dynamic modification using transfer function synthesis method is applied to the design of vibration test fixture. The responses at any pointy on the fixture can bepredicted utilizing the experimental data. Structural dynamic modificationof fixture is performed so that the spectra at the mounting pc nts may meet the specified reference spectrum. The values of the added masses, which will be attached on the fixture, are used as design variables for removing the under-tests in environmental vibration test. From the experimental results of vibration test control applied to the modified fixture and unmodifiedfixture, this method is shown to be an effective one.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/04/20 alle ore 07:20:10