Modeling of acoustic reflection and radiation fields generated from elastic boundary using MHSV model reduction

Woosuk Chang

doi:10.1117/12.599100

19 May 2005 Modeling of acoustic reflection and radiation fields generated from elastic boundary using MHSV model reduction

Woosuk Chang

Author Affiliations +

Proceedings Volume 5757, Smart Structures and Materials 2005: Modeling, Signal Processing, and Control; (2005) https://doi.org/10.1117/12.599100
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2005, San Diego, California, United States

Abstract

Numerical modeling of a three-dimensional acoustic field coupled with a piezoelectric-elastic structure demands significant computation load even on modern high speed computers. In particular, when the wavelength is much smaller than the field scale, the size of the coupled model and its computation time can be excessively large. In this paper, MHSV (Modal Hankel Singular Value) based model reduction technique is employed to minimize the size of the coupled model. This model reduction technique enables us to compare both the radiated and reflected waves from a piezoelectric-elastic source in three dimensional space. Thus, it considers the possibility to fully suppress reflected waves by radiating controlled wave in three dimensional space.

Citation Download Citation

Woosuk Chang "Modeling of acoustic reflection and radiation fields generated from elastic boundary using MHSV model reduction", Proc. SPIE 5757, Smart Structures and Materials 2005: Modeling, Signal Processing, and Control, (19 May 2005); https://doi.org/10.1117/12.599100

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