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Structural optimization of a composite launch tube of man portable air defense system

Efecan Yar (Department of Mechanical Engineering, TOBB University of Economics and Technology, Ankara, Turkey and Department of Tactical Missile Systems, Roketsan Missiles Industries Inc, Ankara, Turkey)
Erdem Acar (Department of Mechanical Engineering, TOBB University of Economics and Technology, Ankara, Turkey)

Aircraft Engineering and Aerospace Technology

ISSN: 0002-2667

Article publication date: 10 June 2021

Issue publication date: 5 August 2021

78

Abstract

Purpose

The purpose of this paper is to find the optimum configuration of the composite launch tube currently being developed in Roketsan. The winding thicknesses and winding angles of the launch tube are selected as design variables, and three different composite material alternatives are evaluated: glass/epoxy, carbon/epoxy and aramid/epoxy.

Design/methodology/approach

In this study, structural optimization of a composite launch tube of man portable air defense system is conducted. To achieve a cost-effective design, a cost scoring table that includes structural weight, material cost, availability and manufacturability is first introduced. Then, optimization for minimum weight is conducted, where the winding thicknesses and winding angle are taken as design variables, and the safety factor value obtained by using the Tsai–Wu damage criterion is used as constraint. A surrogate-based optimization approach is used where various options for surrogate models are evaluated. Glass/epoxy, carbon/epoxy and aramid/epoxy are considered as alternative materials for the launch tube. Finally, the selection of the most cost-effective design is performed to achieve optimum cost.

Findings

Carbon fiber-reinforced epoxy matrix material provides the optimum cost-effective design for the launch tube.

Practical implications

The findings of the paper can be used to design more cost-efficient composite launch tube currently being developed in Roketsan.

Originality/value

The existing studies are based on a design approach to achieve minimum weight of the launch tubes, whereas this study introduces a design approach to achieve optimum cost.

Keywords

Acknowledgements

Funding provided by Roketsan Missiles Industries Inc. is greatly acknowledged.

Citation

Yar, E. and Acar, E. (2021), "Structural optimization of a composite launch tube of man portable air defense system", Aircraft Engineering and Aerospace Technology, Vol. 93 No. 5, pp. 809-820. https://doi.org/10.1108/AEAT-01-2021-0002

Publisher

:

Emerald Publishing Limited

Copyright © 2021, Emerald Publishing Limited

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