纤维增强复合材料叶轮对风机振动特性的影响研究  

Study on the influence of fiber reinforced composite impeller on the vibration characteristics of fan

作　　者：张锦光[1,2] 邓伟 杨桢 邱浩 文湘隆[1,2] ZHANG Jinguang;DENG Wei;YANG Zhen;QIU Hao;WEN Xianglong(School of Mechanical and Electronic Engineering,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,武汉430070 [2]武汉理工大学先进材料制造装备与技术研究院,武汉430070

出　　处：《复合材料科学与工程》2023年第3期53-58,107,共7页Composites Science and Engineering

基　　金：国家自然科学基金(51975435)。

摘　　要：为探究不同材料叶轮对轴流风机振动特性的影响,通过研究不同铺层角度对纤维增强复合材料叶轮固有频率及阻尼比的影响,确定了叶轮铺层方案。计算了不同材料叶轮在额定工况下的安全裕度,结果表明纤维增强复合材料叶轮在运行过程中具有足够的安全裕度。采用谐响应分析方法,对安装有铝合金材料叶轮及纤维增强复合材料叶轮的风机在额定转速下的振动响应进行了对比分析,并对同一风机在仅更换不同材料叶轮的前提下进行振动试验。仿真与试验结果均表明,与装备有铝合金材料叶轮的风机相比,装备有碳纤维增强复合材料叶轮的风机在低频段范围内结构振动加速度级降幅明显,在高频段结构振动加速度级幅值较大。装备有玻璃纤维增强复合材料叶轮的风机全频段的结构振动加速度级均有较大降幅,减振效果显著。In order to understand the influence of impeller of different materials on the vibration characteristics of axial flow fan, the impeller layup scheme was determined by studying the effects of different layup angles on the natural frequency and damping ratio of fiber reinforced composite impellers. The safety margins of impellers of different materials under rated conditions are calculated, and the results show that the fiber-reinforced composite impellers have sufficient safety margins during operation. The harmonic response analysis method was used to compare and analyze the vibration response of the fan with aluminum alloy impeller and fiber reinforced composite impeller at rated speed, and the vibration test was carried out for the same fan with only different impeller. The simulation and test results show that compared with the fan equipped with aluminum alloy impeller, the vibration acceleration of the fan equipped with carbon fiber reinforced plastic impeller decreases significantly in the low frequency range, and the amplitude of vibration acceleration of the fan equipped with carbon fiber reinforced composite impeller is larger in the high frequency range. The structural vibration acceleration of the fan equipped with glass fiber reinforced plastic impeller decreases greatly in the whole frequency band, and the vibration reduction effect is remarkable.

关 键 词：轴流风机 纤维增强复合材料 振动试验 有限元分析 

分 类 号：TB332[一般工业技术—材料科学与工程]