| Citation: | LI Chao, JIN Fuyi, ZHANG Weihaoet al. Optimized design method of aero-engine rotor structure layout[J]. Journal of Beijing University of Aeronautics and Astronautics, 2019, 45(2): 266-276. doi: 10.13700/j.bh.1001-5965.2018.0277(in Chinese)
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Structure is the comprehensive embodiment of aero-engine function, performance, and reliabi-lity design level, and all technical requirements, performance indicators, strength indicators, or structural safety and reliability should be based on reasonable structure layout design. This paper puts forward the viewpoint of the layout and optimization about the aero-engine rotor structure. Taking the structure configuration of the high-pressure rotor of a typical turbofan engine as an example and based on the response surface method of the design of experiment (DOE), the finite element method is used to calculate through multi-objective genetic optimization algorithm. Relevant optimization calculations are carried out from the aspects of deformation resistance, mechanical environment adaptability and rotor structural efficiency respectively. It is demonstrated that reasonable structure layout can greatly enhance the mechanical properties of rotors. The research method is of great guiding significance for the initial structure layout design of the aero-engine rotor system, which can significantly reduce the number of iterations and shorten the design cycle.
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