Structural Optimization Design Considering Reliability Constraints

Article Preview

Abstract:

In engineering applications the uncertainties of the structural parameters are inherent and the scatter from their nominal ideal values is in most cases unavoidable. These uncertainties play a dominant role in structural performance and the reliability-based design optimization is a useful method to assess the uncertainty influence. Compared to the basic deterministic-based optimization problem, the latter considers additional non-deterministic constraint functions and will provide the structure more safety. This paper proposed a Fourier orthogonal neural network method to the structural reliability analysis and reliability-based optimization considering uncertainties, the main aim is to minimize the weight of the structure under certain reliability constraints, and to obtain economic benefit meanwhile ensure the safety of the structure.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

723-726

Citation:

Online since:

December 2013

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2014 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] H. W. Leheta and A. E. Mansour: Reliability-based Method for Optimal Structural Design of Stiffened Panels, Marine Structures 10 (1997), pp.323-352.

DOI: 10.1016/s0951-8339(96)00026-3

Google Scholar

[2] M.A. Valdebenito and G.I. Schuëller: Design of maintenance schedules for fatigue-prone metallic components using reliability-based optimization Computer Methods in Applied Mechanics and Engineering 199 (2010), p.2305–2318.

DOI: 10.1016/j.cma.2010.03.028

Google Scholar

[3] R. Courant and D. Hilbert: Methods of Mathematical Physics. New York: Interscience Publishers, (1955).

Google Scholar

[4] I. Kaymaz and K. Marti: Reliability-based design optimization for elastoplastic mechanical structures. Computers and Structures 85 ( 2007), p.615–25.

DOI: 10.1016/j.compstruc.2006.08.076

Google Scholar