| Citation: | ZHANG Yingzhi, SUN Huibin, YAN Cheng, et al. Prediction of assembly eccentricity and optimization of installation phase for short precision bolted connection structures[J]. Journal of Aerospace Power, 2024, 39（7）：20220421 doi: 10.13224/j.cnki.jasp.20220421
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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.
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