一种高容量金属橡胶缓冲器研制  

Research and Development of a High CapacityMetal Rubber Buffer

作　　者：岳涛[1] 林胜[1] 胡伟辉[1] 高康[1] 陈聪聪 伍保华[1] YUE Tao;LIN Sheng;HU Weihui;GAO Kang;CHEN Congcong;WU Baohua(Zhuzhou Times New Material Technology Co.,Ltd.,Zhuzhou 412007,Hunan,China)

机构地区：[1]株洲时代新材料科技股份有限公司,湖南株洲412007

出　　处：《噪声与振动控制》2020年第3期246-249,共4页Noise and Vibration Control

摘　　要：大兆瓦风力发电机组变桨系统出现机械损坏后将导致叶片失控,进而影响机组安全。可以在叶片的根部安装限位缓冲装置,利用橡胶变形和金属塑性变形吸收叶片旋转产生的巨大冲击能量,避免叶片自转扫到塔筒。结合ABAQUS仿真计算及落锤试验技术,介绍一种结构紧凑、免维护的高容量金属橡胶缓冲器的原理、设计计算及试验验证方法。仿真计算及落锤试验结果均表明该缓冲器的各项性能参数达到设计要求,缓冲容量超过9 kJ,能量吸收率超过70%。验证了特殊的金属薄壁框架和橡胶垫组合结构具有优良的吸能特性。The mechanical damage of pitch system of blades of the large megawatt wind turbine unit can have the blades uncontrolled,which can reduce the safety of the wind turbine unit.In order to avoid the rotating blades to impact the tower,the buffer limit device can be installed at the root of the blade to absorb the huge impact energy.In this paper,the working principle,design and calculation method and test method of the metal-rubber buffer,which has high capacity and compact structure and is maintenance-free,are introduced.Results of ABAQUS simulation and weight-drop test show that the performance parameters of the buffer meet the design requirements.The buffer capacity exceeds 9 kJ and the energy absorptivity exceeds 70%,which verifies that the special metal thin-walled frame and rubber cushion composited structure has excellent energy absorption performances.

关 键 词：振动与波 金属橡胶缓冲器 结构设计 有限元分析 试验验证 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]