【作者】 林贞彬； 廖光； 曾明； 郭大华； 林建民； 黄德； 李维东；

【Author】 Lin Zhenbin,Liao Guang,Zeng Ming,Guo Dahua,Huang De,Lin Jianmin (1.LHD Laboratory,Institute of Mechanics,Chinese Academy of Sciences,Beijing,100190,China; 2.School of Astronautical and Material engineering,National University of Defense technology, Changsha,410073,China)

【机构】 中国科学院力学研究所LHD实验室； 国防科技大学航天与材料工程学院；

【摘要】 本文报道了氢氧爆轰驱动激波风洞中开展气动力测量的"自由型瞬态三分量测力天平"。主要介绍了它的设计思想、具体技术途径等。风洞测试说明气动力信号波形与驻室压力曲线跟随性较好。在此基础上我们在该风洞中开展了不同气体介质对气动力影响的初步对比实验,并对取得的结果进行了讨论。更多还原

【Abstract】 A fast- response free-released balance which has been used in measuring aerodynamic forces in high-enthalpy detonation-driven shock tunnel is reported in this paper.Its main ideas and actual executive techniques are introduced.The measurement system has good transient output response and initial comparative test were conducted between different gaseous mediums in the tunnel.The experiment results are discussed as well.更多还原