Topological Design for Minimum Sound Emission from Structures under Forced Vibration

  • Niels Olhoff
  • Jianbin Du
Part of the CISM International Centre for Mechanical Sciences book series (CISM, volume 549)


This paper is devoted to topology optimization problems formulated with the design objective of minimizing the sound power radiated from the structural surface(s) into a surrounding acoustic medium. Bi-material elastic continuum structures without material damping are considered. The structural vibrations are excited by time-harmonic external mechanical loading with prescribed excitation frequency, amplitude, and spatial distribution. Several numerical results are presented and discussed for bi-material plate-like structures with different sets of boundary and loading conditions.


Optimum Topology Excitation Frequency Forced Vibration Dynamic Compliance Sound Power 
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Copyright information

© CISM, Udine 2014

Authors and Affiliations

  • Niels Olhoff
    • 1
  • Jianbin Du
    • 2
  1. 1.Department of Mechanical and Manufacturing EngineeringAalborg UniversityAalborg EastDenmark
  2. 2.School of AerospaceTsinghua UniversityBeijingChina

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