Abstract
This paper deals with vibro-acoustic optimization of laminated composite plates without damping. The vibration is excited by time-harmonic external mechanical loading with prescribed frequency and amplitude, and the design objective is to minimize the total sound power radiated from the surface of the laminated plate to the surrounding acoustic medium. Instead of solving the Helmholtz equation for evaluation of the sound power, advantage is taken of the fact that the surface of the laminated plate is flat, which implies that Rayleigh’s integral approximation can be used to evaluate the sound power radiated from the surface of the plate. The novel Discrete Material Optimization (DMO) formulation has been applied to achieve the design optimization of fiber angles, stacking sequence and selection of material for laminated composite plates. Several numerical examples are presented in order to illustrate this approach.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2014 CISM, Udine
About this chapter
Cite this chapter
Olhoff, N., Niu, B. (2014). Discrete Material Optimization of Vibrating Laminated Composite Plates for Minimum Sound Emission. In: Rozvany, G.I.N., Lewiński, T. (eds) Topology Optimization in Structural and Continuum Mechanics. CISM International Centre for Mechanical Sciences, vol 549. Springer, Vienna. https://doi.org/10.1007/978-3-7091-1643-2_15
Download citation
DOI: https://doi.org/10.1007/978-3-7091-1643-2_15
Publisher Name: Springer, Vienna
Print ISBN: 978-3-7091-1642-5
Online ISBN: 978-3-7091-1643-2
eBook Packages: EngineeringEngineering (R0)