感度解析を利用したタービン翼根・翼溝の最適形状設計

概要

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It has come to be an essential procedure for us to perform the optimal shape design of root/groove structure of turbine blades in order to improve its structural reliability. However, various complexities, such as multiobjective characteristics, nonlinear formulation and complex shapes have made it difficult to solve this type of problem. In this paper, an effective method of solving this type of problem is proposed by combining sensitivity analysis based on finite element method with linear programming. In the present procedure, alternative iterations of design sensitivity analysis and linear programming analysis are performed to obtain a convergent solution. The additional constraints are also used at the stress-concentration points in order to reduce all peak stresses.
社団法人日本機械学会の論文
1991-04-25