A Decoupling Algorithm-Based Technology for Predicting and Regulating the Unbalance of Aircraft Rotor Assembly Considering Manufacturing Errors
A Decoupling Algorithm-Based Technology for Predicting and Regulating the Unbalance of Aircraft Rotor Assembly Considering Manufacturing Errors
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DOI：
10.3390/machines11100970
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发表时间：
2023-10
期刊：
影响因子：
2.6
通讯作者：
Yingjie Zhao;Xiaokai Mu;Jian Liu;Qingchao Sun;Ping Zhou;Guozhen Fang
中科院分区：
文献类型：
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作者：
Yingjie Zhao;Xiaokai Mu;Jian Liu;Qingchao Sun;Ping Zhou;Guozhen Fang
转子不平衡是影响航空发动机动态性能的最重要因素。现有的不平衡预测和控制方法对多级转子的不平衡预测和控制存在不足。航空发动机转子装配后的不平衡是影响其动态性能的关键因素。为了预测和减小多级转子装配后的不平衡量，通过不平衡量的解耦计算，建立了航空发动机转子质心偏移量的测量模型。在此基础上，建立了考虑制造误差影响的组合转子偏心空间传递模型。此外，提出了一种在装配阶段测量转子不平衡量的方法。多级组合转子不平衡量的实验结果表明，预测结果与实验结果的符合率为91.3%，平均误差比修正前减小了15.3%。研究还调查了制造误差对不平衡的影响。该研究为多级组合转子不平衡控制提供了有力的支持。
Rotor unbalance is the most important factor affecting the dynamic performance of aircraft engines. The existing unbalance prediction and control methods are insufficient for multi-stage rotors. The post-assembly unbalance of rotors in aircraft engines is a critical factor affecting their dynamic performance. In order to predict and reduce the unbalance of multi-stage rotors after assembly, this paper establishes a measurement model for the center-of-mass offset of aircraft engine rotors through decoupled calculations of the unbalance. Furthermore, it constructs an unbalance prediction model using the spatial transfer mechanism of combined rotor offset centers under the influence of manufacturing errors. Additionally, a method for measuring rotor unbalance during the assembly phase is proposed. The experimental results of the unbalance in multi-stage combined rotor assembly indicate that the degree of agreement between the predicted results and the experimental results is 91.3%, resulting in a reduction in the mean error of 15.3% compared to before the correction. The study also investigates the impact of manufacturing errors on unbalance. This research provides robust support for controlling the unbalance in multi-stage combined rotor assembly.