复杂载荷下硬涂层对整体叶盘的减振特性  

Vibration Damping Characteristics of Hard Coating on Integral Leaf Disc under Complex Load

作　　者：党鹏飞 周哲 杨铮鑫 龚斌[1] DANG Peng-fei;ZHOU Zhe;YANG Zheng-xin;GONG Bin(School of Mechanical and Power Engineering,Shenyang University of Chemical Technology,Shenyang 110142,China)

机构地区：[1]沈阳化工大学机械与动力工程学院,沈阳110142

出　　处：《科学技术与工程》2023年第33期14081-14087,共7页Science Technology and Engineering

基　　金：国家自然科学基金(12002219);教育部重点实验室开放课题基金(VCAME202214);辽宁省自然科学基金计划(2022-NLTS-18-02);辽宁省应用基础研究计划(2022JH2/101300077)。

摘　　要：为了研究硬涂层对航空发动机整体叶盘在复杂载荷下的振动影响,通过有限元分析的方法对比研究了其振动特性。首先,建立整体叶盘三维模型,导入ANSYS Workbench软件中,并在叶片的侧面添加NiCoCrAIY+YSZ硬涂层;其次,使用一维插值的方法对航空发动机整体叶盘进行稳态温度场设置,采用Fluent模块对整体叶盘气动载荷进行添加,运用预应力模态分析法研究在离心载荷、温度载荷和气动载荷作用下,硬涂层对整体叶盘非线性振动特性的影响;最后,绘制坎贝尔图,分析在不同转速下硬涂层整体叶盘的共振情况,采用谐响应分析研究其振动位移响应。结果表明:整体叶盘叶尖处更容易受到振动的影响;涂敷硬涂层可以降低整体叶盘的固有频率、响应峰值,且能减少共振点数量。可见硬涂层对整体叶盘减振具有积极影响。In order to study the impact of hard coatings on the vibration of aircraft engine blisks under complex loads,the vibration characteristics were compared and studied through finite element analysis.Firstly,a three-dimensional model of the overall blade disk was established and imported into ANSYS Workbench software,and a NiCoCrAIY+YSZ hard coating was added to the side of the blade.Secondly,a one-dimensional interpolation method was used to set the steady-state temperature field of the aircraft engine blisk,and the Fluent module was used to add aerodynamic loads to the blisk.The pre-stressed modal analysis method was used to study the influence of hard coating on the nonlinear vibration characteristics of the blisk under centrifugal load,temperature load,and aerodynamic load.Finally,a Campbell diagram was drawn to analyze the resonance of the hard coated blisk at different rotational speeds,and harmonic response analysis was used to study its vibration displacement response.The results show that the tip of the integral impeller is more susceptible to vibration,applying hard coating can reduce the intrinsic frequency and peak response of the integral impeller and reduce the number of resonance points.It can be seen that the hard coating has a positive effect on the overall leaf disc vibration reduction.

关 键 词：整体叶盘 硬涂层 复杂载荷 振动特性 

分 类 号：O332[理学—一般力学与力学基础]