脉冲风洞单分量应力波天平测力技术  

Stress Wave Force Balance for Use in Hypersonic Impulse Facilities

作　　者：刘施然[1] 杨赟秀[2] 胡守超[1] 黄军[1] LIU Shi-ran YANG Yun-xiu HU Shou-chao HUANG Jun(Hyperveloeity Aerodynarnie Institute of China Aerodynamics Research and Development Center, Mianyang 621000, China Southwest Institute of Technical Physies, Chengdu 610000, China)

机构地区：[1]中国空气动力研究与发展中心超高速空气动力研究所,绵阳621000 [2]西南技术物理研究所,成都610000

出　　处：《宇航学报》2016年第12期1419-1424,共6页Journal of Astronautics

摘　　要：针对脉冲风洞强振动、极短有效试验时间的测试环境,提出一种采用压电材料作为敏感元件,尾端具有反射应力波耗散能力的单分量应力波天平结构。详细介绍了天平的运行原理,结构设计公式,内悬挂保护罩结构,以及校准方法,最后以半球为模型,在CARDCΦ0.6米激波风洞上进行了验证实验。实验结果验证了该技术的可行性。According to the hypersonic impulse tunnel test environment with strong vibration interference and extreme short effective test time, a kind of single component stress wave force balance sensed by piezoelectric ceramics and with reflect stress wave dissipation ability is put forward. The basic principles, structure design formulas, inner suspended shield structure, and calibration methods are introduced in detail. The axial force of a hemisphere model is tested with the balance in φ0.6 m shock tunnel in CARDC. The feasibility of the technique is verified from the test results.

关 键 词：风洞测力技术 脉冲风洞 应力波天平 反卷积 

分 类 号：V216.1[航空宇航科学与技术—航空宇航推进理论与工程]