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阐述了整体叶盘结构失谐问题,包括模态、响应局部化,局部化因子,失谐叶盘结构分析模型和求解方法,重点对近10年研究的热点问题,如非线性、颤振、灵敏度、气动与结构耦合、失谐识别与预测、失谐优化、“错频”失谐、多级多部件叶盘结构耦合、科氏力、可靠性、稳健性等最新的研究成果做了详细的评述.最后提出了需进一步深入研究的问题,如建立更高效、更高精度、更具适用性的模型,真正采用试验方法对理论仿真模拟进一步地验证,气动与结构耦合以及叶冠间隙和摩擦耦合等因素对多级叶盘共同作用,科氏力产生机理,叶盘对失谐的不敏感度及稳健性等.
The whole leaf disc structure detuning problem is expounded, including modal, response localization, localization factor, detuning disc leaf structure analysis model and solving method, focusing on the hot issues in the past 10 years, such as nonlinear, chatter, Sensitivity, aerodynamic and structural coupling, detuning identification and prediction, detuning optimization, “wrong frequency” detuning, multistage multi-component leaf disc structure coupling, Coriolis force, reliability, robustness and other latest research results to do Finally, the author puts forward some problems that need to be further studied, such as establishing a more efficient, more accurate and adaptable model, using the experimental method to further validate the theoretical simulation, combining the aerodynamic and structural coupling, Gap and friction coupling and other factors on the role of multi-stage leaf disc, Coriolis force generation mechanism, leaf disc on the detuning of the insensitivity and robustness.