一种单矢量风洞天平校准系统设计  

Design of single vector wind tunnel balance calibration system

作　　者：湛华海[1,2] 张旭[2] 吕治国[1] 于炜[2] 王设希[2] 褚卫华[2] 

机构地区：[1]中国空气动力研究与发展中心空气动力学国家重点实验室,四川绵阳621000 [2]中国空气动力研究与发展中心设备设计及测试技术研究所,四川绵阳621000

出　　处：《实验流体力学》2014年第1期70-74,共5页Journal of Experiments in Fluid Mechanics

摘　　要：介绍了一种单矢量六自由度风洞天平校准系统的设计。采用砝码匀速运动过程中碰撞卸载的方法,实现对压电天平的瞬时加载;通过控制天平姿态以及砝码在加载头上的挂点位置实现单矢量加载;并采用多元校准方法对天平信号进行处理,满足超高速风洞测力试验对六分量压电天平校准的需求。校准系统主要由天平姿态调整机构、砝码加载机构、碰撞卸载机构以及控制系统、测量系统等部分组成。系统构造简单、系统误差源少,具有校准效率高,校准精度高等优点。In this paper the design of a single vector six-component wind tunnel balance cali-bration system is introduced,which can calibrate piezoelectric balances by multi component cali-bration method adopting “unload”weight to accomplish instantaneous loading.The weight hits some rigidity object in movement by invariableness speed to accomplish unloading.And the weight can become a single vector load by adj usting the posture of the balance and hanging posi-tion in loading device.It can meet the need of super high-speed wind tunnel experiments.The structure of the system consists of balance posture adjustment equipment,weight loading equip-ment and unloading equipment by collision,and so on.The measurement system and control sys-tem are also expounded in the paper.Because of the simple structure and less error resources,the equipment has advantages of high efficiency and high calibration precision.

关 键 词：天平校准 单矢量 六自由度 压电天平 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]