Modal analysis of a mechanical heart valve by vibro-acoustography

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

A new method is introduced for imaging modal shapes of a mechanical heart valve, based on the radiation force of ultrasound. Vibro-acoustography is used to excite resonant modes in a heart valve prosthesis. A theory is developed that predicts that the resulting acoustic emission pressure is proportional to the value of the mode shape at the focal point of the ultrasound beam. Experimental studies were carried out on a mechanical heart valve. The first two modal shapes were imaged by the method and the results agree well with FEM simulation using Abaqus®. The method can be applied to non-destructive testing and evaluation of vibration modes of small objects.

Original languageEnglish (US)
Title of host publicationProceedings of the IEEE Ultrasonics Symposium
EditorsD.E. Yuhas, S.C. Schneider
Pages1392-1395
Number of pages4
Volume2
StatePublished - 2003
Event2003 IEEE Ultrasonics Symposium - Proceedings - Honolulu, HI, United States
Duration: Oct 5 2003Oct 8 2003

Other

Other2003 IEEE Ultrasonics Symposium - Proceedings
CountryUnited States
CityHonolulu, HI
Period10/5/0310/8/03

Fingerprint

Modal analysis
Ultrasonics
Heart valve prostheses
Acoustic emissions
Nondestructive examination
Imaging techniques
Finite element method
Radiation

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Zhang, X., Fatemi, M., Kinnick, R. R., & Greenleaf, J. F. (2003). Modal analysis of a mechanical heart valve by vibro-acoustography. In D. E. Yuhas, & S. C. Schneider (Eds.), Proceedings of the IEEE Ultrasonics Symposium (Vol. 2, pp. 1392-1395)

Modal analysis of a mechanical heart valve by vibro-acoustography. / Zhang, Xiaoming; Fatemi, Mostafa; Kinnick, Randall R.; Greenleaf, James F.

Proceedings of the IEEE Ultrasonics Symposium. ed. / D.E. Yuhas; S.C. Schneider. Vol. 2 2003. p. 1392-1395.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Zhang, X, Fatemi, M, Kinnick, RR & Greenleaf, JF 2003, Modal analysis of a mechanical heart valve by vibro-acoustography. in DE Yuhas & SC Schneider (eds), Proceedings of the IEEE Ultrasonics Symposium. vol. 2, pp. 1392-1395, 2003 IEEE Ultrasonics Symposium - Proceedings, Honolulu, HI, United States, 10/5/03.
Zhang X, Fatemi M, Kinnick RR, Greenleaf JF. Modal analysis of a mechanical heart valve by vibro-acoustography. In Yuhas DE, Schneider SC, editors, Proceedings of the IEEE Ultrasonics Symposium. Vol. 2. 2003. p. 1392-1395
Zhang, Xiaoming ; Fatemi, Mostafa ; Kinnick, Randall R. ; Greenleaf, James F. / Modal analysis of a mechanical heart valve by vibro-acoustography. Proceedings of the IEEE Ultrasonics Symposium. editor / D.E. Yuhas ; S.C. Schneider. Vol. 2 2003. pp. 1392-1395
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