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Optimization of Joined Conical Shells Based on Free Vibration

[+] Author Affiliations
Rayehe Karimi Mahabadi, Firooz Bakhtiari-Nejad

Amirkabir University of Technology, Tehran, Iran

Paper No. IMECE2016-65612, pp. V04BT05A070; 7 pages
doi:10.1115/IMECE2016-65612
From:
  • ASME 2016 International Mechanical Engineering Congress and Exposition
  • Volume 4B: Dynamics, Vibration, and Control
  • Phoenix, Arizona, USA, November 11–17, 2016
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5055-8
  • Copyright © 2016 by ASME

abstract

This work aims at utilizing genetic algorithm (GA) to pursue the optimization of joined conical shells based on free vibration. Semi-vertex angles of cones and fibre orientation of the laminated composite are considered as design variables. First, the model is simulated in ABAQUS, the model is validated by comparing its results to other obtained from the literature. Then the first non-zero natural frequency of isotropic joined conical shell is maximized by changing the two semi-vertex angles of cones. Last the fibre orientation of laminated joined shells are optimized to achieve the maximum natural frequency.

Copyright © 2016 by ASME

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