某压气机轮盘破裂转速分析与试验验证  

Analysis and Test Verification of Burst Speed of a Compressor Wheel Disk

作　　者：季晨 陈芃樾 孙景国 董磊 JI Chen;CHEN Peng-yue;SUN Jing-guo;DONG Lei(No.703 Research Institute of CSSC,Harbin,China,150078;National Engineering Research Center of Special Equipment and Power System for Ship and Marine Engineering-Gas Turbine R&D and Testing Laboratory,Harbin,China,150078;CSIC Longjiang Guanghan Gas Turbine Co.,Ltd.,Harbin,China,150078)

机构地区：[1]中国船舶集团有限公司第七〇三研究所,黑龙江哈尔滨150078 [2]船舶与海洋工程特种装备和动力系统国家工程研究中心-燃气轮机研发与检测试验室,黑龙江哈尔滨150078 [3]中船重工龙江广瀚燃气轮机有限公司,黑龙江哈尔滨150078

出　　处：《热能动力工程》2024年第3期41-46,108,共7页Journal of Engineering for Thermal Energy and Power

基　　金：国家重大科技专项(J2019-Ⅳ-0015、Y2019-Ⅷ-0013-0174);中船集团自立科技项目(202109Z)。

摘　　要：为研究轮盘破裂转速分析方法并提高破裂转速预测精度,基于平均应力法和极限应变法对某型大功率燃气轮机压气机轮盘破裂转速进行分析。通过后续开展的轮盘超速及破裂试验,对轮盘应变、残余变形及起始破裂位置进行了验证。研究结果表明:轮盘破裂转速分析结果与试验相符,压气机轮盘的主要破裂形式为子午面破裂;与平均应力法相比,极限应变法预测精度更高,并且可以准确预测起始破裂位置。In order to study the analysis method and improve the prediction accuracy of compressor wheel disk burst speed,the burst speed of a certain type of high-power gas turbine compressor wheel disk was analyzed based on the average stress method and the strain-based fracture criteria,and the wheel disk strain,residual deformation and initial burst site were verified by carrying out wheel disk overspeed and burst test subsequently.The study result shows that the analysis result of wheel disk burst speed agrees well with the experimental verification result,and the main burst mode of compressor wheel disk of the gas turbine is meridian burst;compared with the average stress method,the strain-based fracture criteria has relatively higher prediction accuracy and can accurately predict the initial burst site.

关 键 词：燃气轮机 轮盘 破裂转速 极限应变法 破裂模式 

分 类 号：TK474.8[动力工程及工程热物理—动力机械及工程]