黄文俊,陈启明,饶杰,常超,于跃平,朱晓农
HUANG Wen-jun,CHEN Qi-ming,RAO Jie,CHANG Chao,YU Yue-ping,ZHU Xiao-nong

• 1:合肥通用机械研究院安徽省通用机械复合材料技术重点实验室压缩机技术国家重点实验室合肥压缩机技术省级实验室

摘要(Abstract)：

采用有限元方法,首先对钢制离心叶轮工作时在离心力作用下的应力进行了计算和分析。在此基础上,对复合材料离心叶轮在离心力载荷条件下的最大应力和固有频率进行了计算评估。预测纤维复合材料层压结构极限强度对叶轮安全设计和轻量化设计是至关重要的,失效判定采用Tsai-Wu失效准则,为避免因共振使叶轮设计寿命明显降低,计算了叶轮的固有频率和模态振型以分析其动态特性。结果表明,复合材料碳纤维/环氧树脂可承受叶轮线速度在605m/s运行时的应力,在风机启停工作转速范围内没有共振转速相匹配。本文研究结果为纤维增强复合材料风机叶轮的设计及应用奠定了基础。
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(KeyWords)： 离心风机;复合材料;叶轮;应力;振动;有限元
centrifugal fan;composite;impeller;stress;vibration;finite elements

Abstract:

Keywords:

基金项目(Foundation): 安徽省自然科学基金资助项目(1408085MKL58);; 合肥通用机械研究院青年科技基金项目(2013010656)

作者(Author): 黄文俊,陈启明,饶杰,常超,于跃平,朱晓农
HUANG Wen-jun,CHEN Qi-ming,RAO Jie,CHANG Chao,YU Yue-ping,ZHU Xiao-nong

参考文献(References)：

• [1]刘一华,吴国璋.复合材料离心叶轮的强度分析[J].机械强度,1992,14(4):32-37.
• [2]刘梓才,崔小朝,李朗,等.复合材料风机叶轮动静态特性有限元分析[J].太原科技大学学报,2005,26(4):257-260.
• [3]Jifeng Wang,Patil M,Olortegui-Yume J,et al.Mechanical design of wound composite impeller using FEM[C].2010 ASME International Mechanical Engineering Congress and Exposition,November 12-18,2010,Vancouver,British Columbia,USA.
• [4]Jifeng Wang,Olortegui-Yume J,Müller N.Strength and dynamic characteristics analyses of wound composite axial impeller[J].Central European Journal of Engineering,2012,2(1):104-112.
• [5]Balkrishna A T,Darade P D,Raiphale G.Vibration analysis of centrifugal blower impeller for various materials using FEA[J].International Journal of Research in Engineering and Technology,2014,3(9):296-302.
• [6]Nizami M Z,Suman R,Bramhananda Reddy M G.Evaluation of static and dynamic analysis of a centrifugal blower using FEA[J].International Journal of Advanced Trends in Computer Science and Engineering,2013,12(1):316-321.
• [7]Arravind R,Saravanan M,Rijuvan R M.Modal analysis of a radial flow composite impeller[J].Journal of Mechanical Science and Technology,2013,4(1):30-36.
• [8]Mohamed Nabi S,Ganesan G.Stress analysis of a composite centrifugal fan impeller using the cyclic symmetric approach[J].Computers and Structures,1993,48(5):781-785.
• [9]胡晶,李晓星,张天敏,等.碳纤维复合材料转动轴承扭性能优化设计[J].复合材料学报,2009,26(6):177-181.
• [10]秦志文,徐宇,杨科,等.风力机叶片FRP铺层结构强度与失效预测[J].工程热物理学报,2012,33(4):591-594.
• [11]靳交通,梁鹏程,曾竟成,等.复合材料风电叶片有限元刚度分析[J].武汉理工大学学报,2009,31(21):133-136.
• [12]李建华,毛文贵,傅彩明.复合材料风机叶片有限元模态分析[J].湖南工程学院学报,2011,21(1):28-30.
• [13]冯消冰,黄海,王伟.基于遗传算法的大型风机复合材料叶片根部强度优化设计[J].复合材料学报,2012,29(5):196-202.
• [14]张春丽,黄争鸣,董国华.基于非线性本构关系的复合材料风机叶片有限元极限分析与设计[J].复合材料学报,2007,24(2):174-183.
• [15]陈阳,黄友根,王军,等.倾斜蜗舌对前弯离心风机蜗舌区域影响的数值研究[J].流体机械,2015,43(9):26-30.
• [16]于跃平,朱晓农,陈启明,等.离心叶轮反问题气动设计的简易评价[J].流体机械,2015,43(11):57-62.
• [17]陈孙艺.压力容器有限元分析建模中值得关注的几个工程因素[J].压力容器,2015,32(5):50-57.
• [18]石军键,李光.不同工况下钢架木箱有限元分析及优化设计[J].包装与食品机械,2016,34(2):37-40.
• [19]任岩,毕亚雄,王德宽,等.风电机组传动链的故障树智能诊断技术[J].排灌机械工程学报,2016,34(4):328-331.
• [20]益小苏,杜善义,张立同.复合材料手册[M].北京:化学工业出版社,2009.