| Impulse force-measurement system | |
Wang YP(汪运鹏) ; Jiang ZL(姜宗林)
| |
| Corresponding Author | Wang, Y.([email protected]) |
| Source Publication | SHOCK WAVES
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| 2020-10-14 | |
| Pages | 11 |
| ISSN | 0938-1287 |
| Abstract | 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. |
| Keyword | Shock tunnel High enthalpy Aerodynamic force measurement Strain gauge balance |
| DOI | 10.1007/s00193-020-00971-y |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000577245300001 |
| WOS Keyword | BALANCE SYSTEM ; SHOCK ; GAUGE ; FLOWS ; DESIGN ; MODEL |
| WOS Research Area | Mechanics |
| WOS Subject | Mechanics |
| Funding Project | National Natural Science Foundation of China[11672357] |
| Funding Organization | National Natural Science Foundation of China |
| Classification | Q4 |
| Ranking | 1 |
| Contributor | Wang, Y. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/85340 |
| Collection | 高温气体动力学国家重点实验室 |
| Affiliation | Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam LHD, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Wang YP,Jiang ZL. Impulse force-measurement system[J]. SHOCK WAVES,2020:11.Rp_Au:Wang, Y. |
| 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. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| Jp2020315.pdf（1551KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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