修正平均应力法预测轮盘破裂转速的试验研究  

Experiment study on predicting burst speed of disk by modified average stress method

作　　者：陈妍妍 秦仕勇 孙海鹤 魏大盛[2] 杜文军 庞燕龙 CHEN Yanyan;QIN Shiyong;SUN Haihe;WEI Dasheng;DU Wenjun;PANG Yanlong(Sichuan Gas Turbine Establishment,Aero Engine Corporation of China,Chengdu 610500,China;School of Energy and Power Engineering,Beihang University,Beijing 100191,China)

机构地区：[1]中国航空发动机集团有限公司四川燃气涡轮研究院,成都610500 [2]北京航空航天大学能源与动力工程学院,北京100191

出　　处：《航空动力学报》2022年第5期954-963,共10页Journal of Aerospace Power

摘　　要：基于修正平均应力法,分析了TC17钛合金压气机轮盘型面尺寸参数对径向和周向破裂转速的影响,并对破裂模式的转变进行预判。进而设计了针对径向破裂模式的轮盘试验件,并开展了TC17钛合金压气机轮盘的破裂试验。轮盘破裂试验结果与修正平均应力法计算结果吻合较好,计算的破裂转速储备与试验结果的误差由修正前的7.24%下降为修正后的0.72%,可为工程应用提供依据。Based on the modified average stress method, the effects of the profile dimension parameters of TC17 titanium alloy compressor disk on the radial and circumferential burst speed were analyzed,and the transformation of burst mode was predicted. Furthermore,the test disks for radial burst mode were designed, and burst tests of TC17 titanium alloy compressor disk were carried out. The test results of disk burst are in good agreement with the calculated results of the modified average stress method. The error between the calculated burst speed reserve and the test results decreases from 7. 24% before correction to 0. 72% after correction, which can provide a basis for engineering application.

关 键 词：压气机轮盘 径向破裂 破裂试验 破裂转速 修正平均应力法 

分 类 号：V232.3[航空宇航科学与技术—航空宇航推进理论与工程]