The investigation of two critical techniques was conducted to shorten the structure optimization time of a radial inflow impeller.Firstly,in order to reduce optimization scale,the technique of design of experiment(DOE) was used to choose the critical ones from a large number of disk structure dimensions as the optimization design variables.Secondly,in order to lessen analysis time,the technique of support vector machine(SVM) was used to establish surrogate model for stress and vibration analysis of the radi...
【基金】
国家高技术研究发展计划(2006AA04Z418)
【更新日期】
2012-11-08
【分类号】
TP18;V232
【正文快照】
向心叶轮具有落压比高,做功能力强,小流量下能保持较高性能,且零件数少,制造成本低等优点,目前已广泛在中小型航空动力辅助装置[1](auxiliary power unit,APU)及紧急备用动力装置[2](emergency power unit,EPU)涡轮部件中应用.作为热端部件,向心叶轮承受较大的热载荷与离心载荷
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