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针对涡轮多学科优化设计,将多层优化策略中的重要原则学科自治扩展到组件自治;并结合目前的多学科优化策略BLISS(bi-level integrated system synthesis)2000和CO(collaborative optimization)以及ATC(analytical target cascading),设计出新的多学科优化框架.利用BLISS2000建立了涡轮盘叶的两层双子系统优化框架和两层三子系统的优化框架;结合BLISS2000和CO各自的优点构建了三层三子系统优化框架;从定性的分析角度排除了ATC在涡轮多学科多层优化设计上的应用.通过对比分析,三子系统的多层优化策略的优势主要体现在优化效率方面;层与层之间存在复杂的交互迭代过程导致三层系统往往比双层系统表现出差的精度和效率.
In view of multidisciplinary optimization design of turbine, the discipline autonomy of multi-layer optimization strategy is extended to component autonomy. Combined with the current multi-disciplinary optimization strategy BLISS (bi-level integrated system synthesis) 2000 and CO (collaborative optimization) and ATC analytical target cascading), a new multidisciplinary optimization framework is designed.The BLISS2000 two-tier twin subsystem optimization framework and the two-tier three subsystem optimization framework are established.By combining the advantages of BLISS2000 and CO, Subsystem optimization framework; from the perspective of qualitative analysis, ATC has been excluded from the application of multi-layered and multi-layered turbomachinery optimization design.Through comparative analysis, the advantages of multi-layer optimization strategy of three sub-systems are mainly reflected in the aspect of optimizing efficiency; There is a complex interaction iterative process that results in three-tier systems often exhibiting poor accuracy and efficiency over two-tier systems.