Techno Press
Techno Press

Smart Structures and Systems   Volume 18, Number 4, October 2016, pages 733-754
DOI: http://dx.doi.org/10.12989/sss.2016.18.4.733
 
Optimal analysis and design of large-scale domes with frequency constraints
A. Kaveh and A. Zolghadr

 
Abstract     [Full Text]
    Structural optimization involves a large number of structural analyses. When optimizing large structures, these analyses require a considerable amount of computational time and effort. However, there are specific types of structure for which the results of the analysis can be achieved in a much simpler and quicker way thanks to their special repetitive patterns. In this paper, frequency constraint optimization of cyclically repeated space trusses is considered. An efficient technique is used to decompose the large initial eigenproblem into several smaller ones and thus to decrease the required computational time significantly. Some examples are presented in order to illustrate the efficiency of the presented method.
 
Key Words
    optimal analysis; optimal design; frequency constraint; truss; cyclic symmetry
 
Address
A. Kaveh and A. Zolghadr:Centre of Excellence for Fundamental Studies in Structural Engineering, Iran University of Science and Technology, Narmak, Tehran, P.O. Box 16846-13114, Iran
 

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