Optimization of aircraft structures and engines for minimum weight has become important in the recent designs. Topology optimization of airframe structures, wings, and fuselage … is now practiced since last 3-4 years to reduce weight considerably in ribbed members, rotating structures in engines is of much more recent origin. Designers have been practicing to remove some material in the blade platform area by analysis. This weight removal can be optimized to obtain maximum reduction without compromising the structural integrity. This procedure is illustrated in this paper by using two optimization codes, Altair OptiStruct for linear structures and Altair HyperStudy for nonlinear structures using Ansys platform as the main solver. Using this procedure nearly 10% weight reduction is achieved.
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