三维五向编织复合材料飞轮的极限转速分析  

Limited Rotation Speed Analysis of Three Dimensional and Five Directional Braided Composite Flywheel

作　　者：蒋宇[1] 李志雄[2] 汤双清[2] 麻坚[2] 

机构地区：[1]黄山学院信息工程学院,黄山245013 [2]三峡大学机械与材料学院,宜昌443002

出　　处：《机械科学与技术》2009年第10期1325-1329,共5页Mechanical Science and Technology for Aerospace Engineering

基　　金：湖北省教育厅自然科学计划项目(2003A001);湖北省自然科学基金项目(2005ABA294)资助

摘　　要：飞轮储能系统(FESS)储能能力的关键因素之一是飞轮的储能密度。采用三维五向编织工艺能够有效提高复合材料飞轮的综合力学性能,从而提高飞轮储能密度。笔者运用ANSYS对三维五向编织复合材料飞轮进行应力有限元分析,并证明该工艺可以明显提高飞轮储能密度;同时优化设计了基于强度准则的飞轮极限转速计算模型,给出了计算算例,计算结果比采用三维四向编织的极限转速提高了40%。最后进一步分析了影响极限转速的因素。Specific energy density （SED） is a key parameter to evaluate a flywheel energy-saving system（FESS）. Applying the three dimensional and five directional （3-D and 5-D） braiding procedure to the constructing of composite flywheel, the flywheel mechanical properties can be promoted effectively, so as to increase the SED of a flywheel. The finite element analysis （FEA） has been adopted to prove that the 3-D and 5-D braiding technic can improve the flywheel＇s SED evidently. In addition, a limited rotation speed calculation model base on the strength criterion was developed by means of optimal design. Calculation result shows that the presented method can increase the limited rotation speed by 40% compared with 3-D and 4-D braiding procedure. Finally, further analysis of the factors that affect the limited rotation speed is presented.

关 键 词：三维五向编织 复合材料飞轮 极限转速 有限元分析(FEA) 

分 类 号：O343.8[理学—固体力学] TB332[理学—力学]