عنوان مقاله [English]
نویسندگان [English]چکیده [English]
Multidisciplinary design optimization is one of the new methods of design with ability solving complicated problems with large design space including aerospace problems. The purpose of this article is the conceptual design of a two-stage crew launch vehicle with side boosters. Thus, in first phase, in order to achieve a suitable design point, the statistical design technique is used, and then statistical design process is validated by using two degree of freedom simulation and doing energetic-mass calculations. In second phase, multidisciplinary design optimization approach is applied for initial conceptual design optimization. The preferred structure for multidisciplinary design optimization is all-at-once and simulated annealing is used as the optimizer algorithm. Having performed the optimization process, a mass decrease of about 7 tons from missile gross weight was attained with respect to normal simulation results, and as already known, the decrease in gross mass undeniably leads to a consequent decrease in the cost of producing and launching missiles.
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