Hard coatings have been investigated to control the vibration level of nonrotating blisks. Nevertheless, the rotational effects in previous investigations of coated blisks are neglected. In this work, a linear reduced order model on the basis of an improved cyclic symmetric analysis method and classical SNM (Subset of Nominal Modes) is present to simulate rotating blisks with linear coatings and mistuning features. Furthermore, the nonlinear reduced order model of rotating blisks incorporating nonlinear characteristics of coatings and mistuning features is developed. The nonlinear forced responses are solved by a developed accelerated iteration method. The effects of nonlinear coatings on vibration characteristics of rotating tuned blisks are investigated. Finally, deterministic and statistical analyses are performed to analyze the effects of the nonlinear characteristics of coatings on forced responses of rotating randomly mistuned blisks. The results indicate that considering the nonlinear characteristics leads to increasing reduction level of forced responses with the increment of excitation amplitude and the rotational effects play an important role on the vibration characteristics of the blisks.

已经研究了硬涂层来控制非旋转叶盘的振动水平。然而，先前对涂层叶盘的研究中的旋转效应被忽略了。在这项工作中，提出了基于改进的循环对称分析方法和经典 SNM（标称模式子集）的线性降阶模型来模拟具有线性涂层和失谐特征的旋转叶盘。此外，还开发了结合涂层非线性特性和失谐特征的旋转叶盘的非线性降阶模型。非线性受迫响应是通过开发的加速迭代方法解决的。研究了非线性涂层对旋转调谐叶盘振动特性的影响。最后，执行确定性和统计分析以分析涂层的非线性特性对旋转随机失谐整体叶盘受迫响应的影响。结果表明，考虑非线性特性会导致受力响应随激励幅度的增加而降低，旋转效应对叶盘的振动特性起着重要作用。