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An approach for shape optimization of stratosphere airships based on multidisciplinary design optimization. (English) Zbl 1214.49040

Summary: Airship shape is crucial to the design of stratosphere airships. In this paper, Multidisciplinary Design Optimization (MDO) technology is introduced into the design of airship shape. We devise a composite objective function, based on this technology, which takes account of various factors which influence airship performance, including aerodynamics, structures, energy and weight to determine the optimal airship shape. A shape generation algorithm is proposed and appropriate mathematical models are constructed. Simulation results show that the optimized shape gives an improvement in the value of the composite objective function compared with a reference shape.

MSC:

49Q10 Optimization of shapes other than minimal surfaces
49N90 Applications of optimal control and differential games
49M30 Other numerical methods in calculus of variations (MSC2010)
90C59 Approximation methods and heuristics in mathematical programming
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