CFRP螺旋桨模态分析研究  

Simulation Research on Modal Analysis of CFRP Propeller

作　　者：靖瑨 胡业发[1,2,3] 丁国平[1,2,3] JING Jin;HU Yefa;DING Guoping(School of Mechanical and Electronic Engineering,Wuhan University of Technology,Wuhan 430070,China;Hubei Key Laboratory of Digital Manufacturing,Wuhan University of Technology,Wuhan 430070,China;Institute of Advanced Material Manufacturing Equipment and Technology,Wuhan University of Technology,Wuhan 430070,China)

机构地区：[1]武汉理工大学机电工程学院,湖北武汉430070 [2]武汉理工大学湖北省数字制造重点实验室,湖北武汉430070 [3]武汉理工大学先进材料制造装备与技术研究院,湖北武汉430070

出　　处：《数字制造科学》2022年第1期29-33,共5页

摘　　要：为了研究CFRP螺旋桨的振动特性,避免CFRP螺旋桨在工作期间发生共振现象而造成安全事故,通过ANSYS建立了CFRP螺旋桨的有限元模型,对其进行了模态分析,获取了CFRP螺旋桨模型的固有频率和位移、应变模态振型。结果表明,CFRP桨的前三阶湿模态固有频率比干模态固有频率减小65%~68%,湿模态与干模态的各阶模态振型相似。与实验值相比,CFRP螺旋桨干模态和湿模态的误差分别在4%和6%以内,验证了仿真的准确性。探究了铺层角度对CFRP螺旋桨模态的影响,结果表明大角度铺层会提高螺旋桨的固有频率。To study the vibrational characteristics of CFRP propeller and to avoid accidents caused by resonance during operation,a finite element model of CFRP propeller was established using ANSYS in this work.The modal analysis was carried out to obtain the natural frequency,displacement and strain modal shapes of the CFRP propeller model.The results show that the natural frequencies of the first three order wet mode of the CFRP propeller are 65%~68%lower than that of the dry mode,and the vibrational modes are similar for the propellers in both wet mode and dry mode.Comparing with the experimental values,the errors of the CFRP propeller in dry mode and wet mode are less than 4%and 6%,respectively,which verifies the accuracy of the simulation.The effect of ply angle on the mode of CFRP propeller was investigated.The results show that the natural frequency of propeller can increase with the ply angle.

关 键 词：CFRP螺旋桨 固有频率 位移模态 铺层角度 

分 类 号：U664.33[交通运输工程—船舶及航道工程]