The comparisons between the numerical results and the experimental results indicate that the mean stress method is accurate when the correction coefficient is chosen properly.
Upon completing the disc shape optimization, the burst speed was estimated using three elaborated methods. Finally, the achieved minimum disc weight is 15.2 kg with all the safety factors meeting the requirements. On the contrary, the effects of the bore angle show the opposite trend. Results reveal that the bore width and web width are positively related to the safety factors at the cost of increasing the disc weight. Bore width, web width, and bore angle are identified to be the dominant factors regarding optimization. Sensitivity analysis has been conducted to study the effects of the variables on the safety factors and disc weight.
Six key parameters were defined as variables with regard to the geometric dimensions whereas the safety factors were set as constraints to make the disc feasible.
#Blisk marina software
Incorporating the design of the experimental approach and the commercial software has guaranteed that the optimization could be accomplished. This paper is aimed at performing a systematic investigation on the design of a high-speed Ti2AlNb blisk, including disc geometry optimization and burst speed prediction. The increasing demand for power, fuel efficiency, and safety of aeroengines has called for weight reduction and structural integrity examination of the critical components.
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