CAJ | 학술논문

在某涡扇发动机结构优化中,为满足总体结构和机械系统的要求,采用了兼具支板功能的紧凑式低压涡轮导向器设计方案.在完成常规涡轮设计的基础上,通过子午流道设计和大叶片设计及数值仿真,对导向器内的流动进行了细致而有效的控制,并对其进行了三轮优化设计和流场分析.结果表明,该优化设计方案在满足结构设计要求的同时保持了良好的气动性能,具有明显的先进性,并在发动机整机试验中取得了良好效果,可推广到其它发动机研制和改型设计中.
재모와선발동궤결구우화중,위만족총체결구화궤계계통적요구,채용료겸구지판공능적긴주식저압와륜도향기설계방안.재완성상규와륜설계적기출상,통과자오류도설계화대협편설계급수치방진,대도향기내적류동진행료세치이유효적공제,병대기진행료삼륜우화설계화류장분석.결과표명,해우화설계방안재만족결구설계요구적동시보지료량호적기동성능,구유명현적선진성,병재발동궤정궤시험중취득료량호효과,가추엄도기타발동궤연제화개형설계중.
According to the turbofan engine structure optimization design, a compact low pressure turbine nozzle with the function of the strut was adopted to meet the requirements of general structure and mechani?cal system. On the basis of conventional turbine design, the flow inside of nozzle was effectively controlled by means of meridian flowpath, large vane design and numerical simulation; and three rounds of optimiza?tion design and flowfield analysis were accomplished. The results show that this scheme meets the structur?al requirements with favorable performance, and represents famous result in the engine test that could be generalized in the development and derivative design of other models.