蛛网仿生结构SiC/SiC涡轮叶盘制备与性能  

Fabrication and Properties of Spider Web Structure SiC/SiC Turbine Blisk

作　　者：刘小冲[1] 徐友良 郭小军 罗潇 李龙彪[3] 曾雨琪 刘持栋 LIU Xiaochong;XU Youliang;GUO Xiaojun;LUO Xiao;LI Longbiao;ZENG Yuqi;LIU Chidong(School of Materials Science and Engineering,Northwestern Polytechnical University,Xi'an 710072 China;Hunan Aviation Powerplant Research Institute,Aero Engine Corporation of China,Zhuzhou 412000,Hunan,China;College of Civil Aviation,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China)

机构地区：[1]西北工业大学材料学院,西安710072 [2]中国航发湖南动力机械研究所,湖南株洲412000 [3]南京航空航天大学民航学院,南京211106

出　　处：《硅酸盐学报》2022年第8期2205-2211,共7页Journal of The Chinese Ceramic Society

基　　金：装备预研中国航发联合基金(KT901);国家自然科学基金重大研究计划重点支持项目(92060202);国家自然基金面上项目(52172100)。

摘　　要：涡轮转子是燃气涡轮发动机的核心部件。受到蜘蛛网强韧性和协同承载特性启发,提出了蛛网仿生结构(SWS)SiC/SiC陶瓷复合材料涡轮叶盘的制备方法,通过SWS预制体设计与成型,完成了SWS-SiC/SiC涡轮叶盘制备,表征了SWS-Si C/Si C涡轮叶盘性能。结果表明:所制备SWS-Si C/Si C涡轮叶盘的破裂转速达到n=118000 r/min(叶尖线速度达到702.84 m/s),是常规2D-Si C/Si C涡轮叶盘破裂转速的3.09倍,是某燃气涡轮发动机涡轮叶盘设计转速(n=85000 r/min)的1.86倍;经设计转速测试后,所制备SWS-SiC/SiC涡轮叶盘的一阶、二阶、三阶频降分别是:0.41%、0.03%和0.26%。The turbine rotor component is one of the core components of gas turbine engine(GTE).Based on the inspiration from nature spider web as one of excellent toughness and collaborative bearing characteristics,we proposed an idea of preparing ceramic matrix composites(CMCs)turbine blisk,which has a spider web structure(SWS)preform.We invented a new method of designing SWS preform and prepared SWS-Si C/Si C turbine blisk.The SWS-SiC/SiC turbine blisk was tested via super-spin experiments in room temperature.The results show that its breaking speed reaches to 118000 r/min(at a blade tip speed of 702.84 m/s),which is 3.09 times greater than that of the conventional 2D-C/SiC turbine disk,and 1.86 times greater than that of the target speed(85000 r/min)of a GTE turbine blisk.The results of target speed test indicate that the first order frequency,second order frequency and third order frequency of SWS-SiC/SiC turbine blisk can be reduced by 0.41%,0.03%and 0.26%,respectively.

关 键 词：陶瓷基复合材料 涡轮叶盘 仿生结构设计 燃气涡轮发动机 

分 类 号：TB332[一般工业技术—材料科学与工程]