A new procedure for aerodynamic missile designs using topological optimization approach of continuum structures |
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| Institution: | 1. Department of Automation & Computer-Aided Engineering, The Chinese University of Hong Kong, Shatin, NT, Hong Kong;2. Center for Computer-Aided Design, The University of Iowa, 111 Engineering Research Facility, Iowa City, IA 52242, USA;3. School of Mechanical Science & Engineering, Huazhong University of Science & Technology, Wuhan, Hubei, 430074, China;1. School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China;2. School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China;1. Department of Mechanical and Aerospace Engineering, Hong Kong University of Science and Technology, Hong Kong;2. Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Hong Kong;3. Department of Mechanical Engineering, National University of Singapore, Singapore;1. Department of Computational Mechanics, Faculty of Mechanical Engineering, University of Campinas, Rua Mendeleyev 200, 13083-860, Campinas, Brazil;2. Autodesk Australia Pty Ltd, 259 Colchester Rd, Kilsyth South VIC 3137, Australia;3. Centre for Innovative Structures and Materials, School of Civil, Environmental and Chemical Engineering, RMIT University, GPO Box 2476, Melbourne 3001, Australia;1. Faculty of Transport and Traffic Engineering, University of Belgrade, Vojvode Stepe 305, 11000 Belgrade, Serbia;2. Faculty of Mechanical Engineering, University of Belgrade, Kraljice Marije 16, 11000 Belgrade, Serbia;3. Military Technical Institute, Ratka Resanovi?a 1, 11000 Belgrade, Serbia;1. State IJR Center of Aerospace Design and Additive Manufacturing, Northwestern Polytechnical University, Xi''an 710072, China;2. MIIT Lab of Metal Additive Manufacturing and Innovative Design, Northwestern Polytechnical University, Xi''an 710072, China;3. Science and Technology on Space Physics Laboratory, China Academy of Launch Vehicle Technology, Beijing 100076, China |
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| Abstract: | This paper presents a multi-objective programming scheme for the conceptual design of aerodynamic missile's structure using topological optimization approaches, in which both the compliance and eigenfrequency are regarded as static and dynamic optimization objectives, respectively. During the conceptual design of the aerodynamic missile with multiple loadings, both the multilevel sequential programming approach and the compromising programming method are coupled together to settle the associated difficulties when the whole structure of the missile body is considered as a pre-defined design domain. The compromise programming method is first applied to describe the statically loaded multi-stiffness topology optimization, and the dynamic formulation is used to establish the subsequent optimization problem mainly concerned with free vibration. The main advantage of the proposed scheme is the flexibility of dealing with optimal topology designs for the whole structures of aerodynamic missiles with complicated loading cases. Solid isotropic material with penalization (SIMP) is used as the interpolation scheme to indicate the dependence of material modulus upon regularized element densities. The sequential convex programming approach is applied to solve the optimization problem. An engineering application is used to demonstrate the characteristics of the presented methodologies based on the commercial software package of Hyperworks.OptiStruct at Altair®. |
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