流体机械2017，Vol.45Issue(2)：17-21,5.DOI:10.3969/j.issn.1005-0329.2017.02.004
复合材料离心叶轮应力和振动有限元计算与分析
Calculation and Aanalysis of Stress and Vibration for Composite CentrifugalImpellers by Using Finite Elements Method
摘要
Abstract
The stresses of the steel centrifugal impeller were calculated and analyzed under the action of centrifugal force by using the finite element method.Based on that,the maximum stresses under operating loading conditions particular to centrifugal force and natural frequencies of composite centrifugal impellers were calculated and evaluated.The ability to predict fiber composite laminates ultimate strength is critical in the design of safe and lightweight for impellers,the Tsai-Wu failure criterion is used to determine failures.In order to avoid resonance which can make impellers suffer a significant reduction in the design life,the designer must calculate the natural frequency and modal shape of impeller to analyze the dynamic characteristics.The results show that composite material Carbon fiber/Epoxy enables the impeller to run at high tip speed of 605 m/s and withstand the stresses;no resonance speed will be matched during start-up and shut-down.The research results of this paper lay a foundation for design and application of the fiber reinforced composites fan impellers.关键词
离心风机/复合材料/叶轮/应力/振动/有限元Key words
centrifugal fan/composite/impeller/stress/vibration/finite elements分类
机械制造引用本文复制引用
黄文俊,陈启明,饶杰,常超,于跃平,朱晓农..复合材料离心叶轮应力和振动有限元计算与分析[J].流体机械,2017,45(2):17-21,5.基金项目
安徽省自然科学基金资助项目(1408085MKL58) （1408085MKL58）
合肥通用机械研究院青年科技基金项目(2013010656) （2013010656）
