摘要
为了有效提高短精密螺栓连接结构的装配精度,分析了两级盘组合后形心、质心偏心影响因素,阐述了两级盘配合过程中的平动转动行为和定心原理,建立了两级转子形心偏差预测模型、初始不平衡量预测模型.提出了以短精密螺栓连接的转子盘安装相位为变量,形心偏心和初始不平衡量最小为优化为目标的工艺优化模型,通过实物实验进行了验证.结果表明:形心偏差模长最大相对误差为13.28%,组合不平衡量的计算结果精度最大提高了 37.3%,工艺优化结果与实验结果相符,对于短精密螺栓连接结构装配工艺优化具有重要的参考意义.
In order to effectively improve the assembly accuracy of the short precision bolted connection structures,the influencing factors of the centroid and centroid eccentricity after combination of the two-stage disks were analyzed,the translational rotation behavior and centering principle during the matching process of the two-stage disks were expounded,and a two-stage rotor was established.Centroid deviation prediction model and initial imbalance prediction model were established.A process optimization model was proposed,the installation phase of the rotor disk connected by short precision bolts was taken as the variable,and the centroid eccentricity and the mini-mum initial unbalance amount were taken as the optimization objective,which were verified by the physical test.The results showed that the maximum relative error of the module length of the centroid deviation was 13.28%,the maximum accuracy of the calculation result of the combined unbalance increased by 37.3%,and the process optimization results were consistent with the test results,which had important reference significance for the optimization of the assembly process of short precision bolted connection structures.
作者
张譍之
孙惠斌
颜诚
况侨
ZHANG Yingzhi;SUN Huibin;YAN Cheng;KUANG Qiao(Key Laboratory of High Performance Manufacturing for Aero Engine,Ministry of Industry and Information Technology,Northwestern Polytechnical University,Xi'an 710072,China;Institute for Aero-engine Smart Assembly of Shaanxi Province,Northwestern Polytechnical University,Xi'an 710072,China;South Industry Company Limited,Aero Engine Corporation of China,Zhuzhou Hunan 412002,China;Military Representative Office of Army Equipment Department of the People's Liberation Army in Zhuzhou,Zhuzhou Hunan 412002,China)
出处
《航空动力学报》
EI
CAS
CSCD
北大核心
2024年第7期56-65,共10页
Journal of Aerospace Power
基金
国家科技重大专项(2017-Ⅶ-0010-0104)
基础科研计划(XXXX2018213A001)。
关键词
短精密螺栓
同心度
不平衡量
安装相位
工艺优化
short precision bolt
concentricity
unbalance
installation phase
process optimization
