Impulse force-measurement system

doi:10.1007/s00193-020-00971-y

CORC > 力学研究所 > 中国科学院力学研究所 > 高温气体动力学国家重点实验室

	Impulse force-measurement system
	Wang YP(汪运鹏); Jiang ZL(姜宗林)
刊名	SHOCK WAVES
	2020-10-14
页码	11
关键词	Shock tunnel High enthalpy Aerodynamic force measurement Strain gauge balance
ISSN号	0938-1287
DOI	10.1007/s00193-020-00971-y
通讯作者	Wang, Y.(wangyunpeng@imech.ac.cn)
英文摘要	Shock tunnels are important ground test facilities that can generate high-enthalpy flow. Flight velocity at a high Mach number can be simulated for aerodynamic testing of chemically reacting flows. However, the application of these tunnels is limited due to the only milliseconds-long test duration, especially for aerodynamic force measurement using traditional strain gauge balances. This study presents an impulse force-measurement system, which was used for a large-scale test model to measure its drag in a high-enthalpy shock tunnel with an approximately 3-7-ms test time. Force tests were conducted for a cone in the JF-10 high-enthalpy shock tunnel in the Institute of Mechanics, Chinese Academy of Sciences. An integrated design of the impulse force-measurement system was proposed for load measurement over a short duration, for which a recommended design criterion is that the measurement period be a minimum of twice the period corresponding to the lowest natural frequency of the measurement system. The current measurement technique breaks the limitations of the application of the conventional strain gauge balance. As an integrated measuring system, the impulse force-measurement system expands the structural design concept of strain gauge balances. The impulse force-measurement system performed well in the present tests. The test results show differences from the numerical simulations and some data obtained in a conventional wind tunnel. A preliminary analysis was performed on the real gas effects on the aerodynamic force.
分类号	Q4
资助项目	National Natural Science Foundation of China[11672357]
WOS关键词	BALANCE SYSTEM ; SHOCK ; GAUGE ; FLOWS ; DESIGN ; MODEL
WOS研究方向	Mechanics
语种	英语
WOS记录号	WOS:000577245300001
资助机构	National Natural Science Foundation of China
其他责任者	Wang, Y.
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/85339]
专题	力学研究所_高温气体动力学国家重点实验室
作者单位	Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam LHD, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Wang YP,Jiang ZL. Impulse force-measurement system[J]. SHOCK WAVES,2020:11.
APA	汪运鹏,&姜宗林.(2020).Impulse force-measurement system.SHOCK WAVES,11.
MLA	汪运鹏,et al."Impulse force-measurement system".SHOCK WAVES (2020):11.