Abstract

The boundary element method (BEM) has been utilized extensively in numerical simulations of engineering acoustics problems. The indirect boundary element formulation (IBEM) allows the simulatneous modeling of the acoustic spaces on both sides of a thin vibrating structure. In order to exploit the full potential of the IBEF a new formulation was developed in this work, allowing the application of separate impedance boundary conditions on each side of the vibrating structure. This situation is often encountered in practical applications (engine enclosures, computer boxes, car bodies, etc.), where noise isolation material is applied on only one side of a vibrating structure.

Volume Subject Area:
Acoustics and Noise Control Software
Topics:
Acoustics, Boundary element methods, Boundary-value problems, Computer simulation, Computers, Engines, Modeling, Noise (Sound), Space
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Copyright © 1997 by The American Society of Mechanical Engineers
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