Volume 12, Issue 24 (1-2017)                   Marine Engineering 2017, 12(24): 75-88 | Back to browse issues page

‎ 20.1001.1.17357608.1395.12.24.5.2

XML Persian Abstract Print

Design and Optimization of Vertical Launcher Structure of Launch Vehicle Launching from the Ship Using Finite Element Method
Asghar Mahdian1 , Mohammad Hadi Mortazavi Manesh * 1, Behrooz Shahriari1
1- Malek -Ashtar University of Technology
Abstract:   (6633 Views)

Launching pads are among the essential elements of missiles and their main function is to prepare missiles for launch. Tower launchers dimension and configuration depend on effective loads, dimension and weight of the missile. In the majority of tower launchers, two bars connected to each other with crossbar connectors are considered to be the basic parts. Therefore, it is essential to calculate accelerations (forces) applied from ship to structure of the tower launcher. Space frame element is used for designing and a finite element code has been written in MATLAB Software to calculate stress and deformities of the structure. A Genetic algorithm which is codified in MATLAB has been used for optimization. All of the written codes have been compared to experimental data and results confirm the accuracy and exactness of the outcome. In this design weight of the tower launcher was the target equation, displacement and yield stress were constraints and geometrical specifications of the cross section were variables.

Keywords: Structure Design, Optimization, Tower Launcher, Ship, Finite Element Method
Full-Text [PDF 1304 kb]   (4032 Downloads)    
Type of Study: Research Paper | Subject: Ship Structure
Received: 2016/01/28 | Accepted: 2016/11/27
References
1. Saif . M .S., (1997), Ship Dynamics . Published by Hormozgan University (InPersian).
2. Beydaei B. and Sanaeipor H ., (2010), Check The Operating System Launchers From The Sea, 10th Conference Of Iranian Aerospace Society, Tarbiat Modares University, Tehran.(In Persian)
3. Milkov VK. and Kmisaric, AM., Equipment Ground Missiles, translated by Abdi, B., (2006), published by Aerospace Organizations Tehran (InPersian).
4. Christopher J. Brown and Alan C. Littlefield, (2010) Design ‏ of a Light Weight Mobile Launch Structure for the Ares1 Launch Vehicle, Structures Congress ASCE.
5. Joha H, Halland, (1992), Adaptation in natural and artificial system, Ann‏Arbor, MI: University of Michigan press
6. Dvid E., Goldberg, (1989), Genetic algorithms in search optimization and machine learning. Addison Wesley Longman Publishing Co., Inc. Boston, MA, USA.
7. Hajela, P. and E. Lee., (1995), Genetic algorithms in truss‏topological optimization, ‏J. Solids Structures, Vol32 (22)
8. Rajeev, S. and Krishnamoorthy, C. S. (1992), Discrete optimization of structures using genetic algorithms‏, ‏J.Struct. Engng. ASCE, Vol.118 (5), 1233
9. Camp, C. and Pezeshk, S., (1998), Optimized design two-dimensional structures using agenetic algorithm,‏ Journal‏ for‏ Structural‏ Engineering124: 551-559
10. Gero, P. and Bello, A.,(2006), Design optimization of 3D ‏ steel ‏structures: genetic algorithms ‏vs.‏ ‏ classica techniques , Journal constructional steel. 62(12):1303
11. Tagawa, H. and Ohsaki, M.,(1999), A continuous topology transition model for shape optimization of plane truss with uniform cross-sectional area, In: Proc. 3rd world congress of structural and multidisciplinary optimization.
12. Dede. T., bekirglu, S. and Ayvaz. Y.,(2011), Weigh minimization of trusses with Genetic Algorithm, Applied Soft Computing.
13. Gandomia, A.H., Alavib. A.H., Mohammadzadeh, D. and Sahabd, M.G., (2013), An empirical model for shear capacity of RC deep beams using genetic-simulated annealing, archives of civil and mechanical engineering 13.354-369
14. Hasancebi, O, Carbas, S., Dog, E., Erdal, F. and Saka, .M.P.(2010), Comparison of non-deterministic search techniques in the optimum design of real size steel frames, Computers and Structures, 88 1033-1048
15. Rag. S. S. (1994), Finite Element Methods in Endineering, translated by Majzobi. G. and Fariba. F., (1997), Published by Boalisina university, Hamedan.
16. Cook, R.D., (1995), Finite Element Modeling for Stress Analysis, translated by Mahdian. A. (2008), Published by Kanon Pazhohesh, Efahan (In Persian).
17. Bringas, J.E., (2004), Handbook Of Comparative World Steel Standards. Third Edition, ASTM International, Conshohocken
18. Kia, M., (2012), Genetic Algorithms In MATLAB, Published by Daneshgahi Kian . Tehran (In Persian).
19. Kinnear, K. E., (1994), Advances in genetic programming. Mit, 1st edition. Massachusets Institude of Technology.
20. Mahmodi Kocheksaraei, H. and Taghizade, N., (2012), The Use Of Genetic Algorithms In The Optimization Of Geometric Structures Truss. 9th Internasional Conference Civil Engineering, Isfahan University Of Technology‏‏.
21. Naei, H., (2010), Mechanics Of Materials, Published by Poran Pazhohesh,Tehran(In Persian).
22. Kripka, M., (2004), Discrete Optimization of Trusses by Genetic Algorithm, J. of the Braz. Soc. Of Mech. Sci.Eng. ABCM. Passo Fundo. RS. Brazil, April-June-4
23. Haftka, R. T., (1992), Elements Of Structural Optimization, Translated by Abolbashari, M., (2003), Published by Ferdowsi University, Mashhad. (In Persian).
24. Ferreira, A.J.M (2008), MATLAB Codes for Finite Element Analysis, Springer,Universidade do Porto Portugal
Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.