叶片单一与耦合误差对轴流压气机性能的影响  

Effects of blade single and coupling errors on axial flow compressor performance

作　　者：楚武利[1] 何旭东 杨吉博 刘凯烨 CHU Wuli;HE Xudong;YANG Jibo;LIU Kaiye(School of Power and Energy,Northwestern Polytechnical University,Xi’an 710072,China;Xi’an Aerospace Propulsion Institute,China Aerospace Science and Technology Corporation,Xi’an 710100,China)

机构地区：[1]西北工业大学动力与能源学院,西安710072 [2]中国航天科技集团有限公司西安航天动力研究所,西安710100

出　　处：《航空动力学报》2024年第11期119-132,共14页Journal of Aerospace Power

基　　金：国家科技重大专项(J2019-Ⅰ-0011);国家自然科学基金(51576162)。

摘　　要：由于加工工艺等因素的限制,在实际的加工过程中,理论叶型与实际叶型之间总会存在微小误差。针对跨声速压气机转子Rotor 37,采用数值模拟和NIPC(非嵌入式多项式混沌方法)相结合的方法,研究轴向位置度误差与安装角误差对压气机气动性能的不确定性影响。结论表明:对于轴向位置度和安装角服从零均值标准正态分布的加工误差,两者单一变化或耦合变化时,转子气动性能对各误差敏感性基本一致,只有个别参数有区别。轴流压气机气动性能与各个误差的相关性有强弱之分,加工时应当关注强相关性的性能参数。叶片耦合误差对压气机的影响为叶片轴向位置度误差和安装角误差的影响的叠加。Due to the limitation of processing technology and other factors,there is always a small error between the theoretical blade profile and the actual blade profile in the actual processing.For transonic compressor Rotor 37,the influences of axial position and stagger angle errors on the uncertainty of compressor aerodynamic performance were studied by numerical simulation and NIPC(non-intrusive polynomial chaos method).The conclusion indicated that,for machining errors with zero mean standard normal distribution of axial position and stagger angle,the sensitivity of rotor aerodynamic performance was approximately the same when they changed singly or in coupling,only individual parameters were different.The correlation between the aerodynamic performance of axial flow compressor and each error was strong or weak,and attention shall be paid to the performance parameters with strong correlation during processing.The influence of blade coupling error on compressor lied in the superposition of the influences of blade axial position error and stagger angle error.

关 键 词：跨声速轴流压气机 加工误差 不确定性 安装角误差 耦合误差 

分 类 号：V231.3[航空宇航科学与技术—航空宇航推进理论与工程]