The objective of the optimal design process for aeroengine turbine disks is to acquire configurations with minimum weight, satisfying the strength demand. In this paper, an optimal design process for aeroengine turbine disks based on energy-management technology was presented and the effect of different energy-management strategies on stress level and disk configuration was investigated. In this process, thermal conditions were taken as variables rather than passively accepted as conditions in a conventional optimal design process. That is, under the constant cooling condition, the heating energy was redistributed by energy-management strategies, and part of the heating energy was transferred to actively heat the inner rim of the disk. Then, the temperature and stress distribution correspondingly varied, and consequently determined the optimal configuration. Using the proposed optimal design process and the general optimization method of inscribed hyperspheres, a simplified aeroengine turbine disk was optimized by theoretical analysis. The results showed that, compared with conventional thermal conditions, the optimal disk based on energy management achieved lightened weight and a lower stress level simultaneously, and this effect was strengthened with the increase of the ratio of the heating energy transfer . Thus, a better configuration of the disk was obtained.
Optimal Design Process for Aeroengine Turbine Disks Based on Energy Management
Journal of Thermophysics and Heat Transfer ; 29 , 4 ; 684-694
2014-12-15
11 pages
Article (Journal)
Electronic Resource
English
Small Aeroengine Turbine Design Concept and Problems
British Library Conference Proceedings | 2011
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