| Design of a pulse-type strain gauge balance for a long-test-duration hypersonic shock tunnel |
| Wang YP(汪运鹏) ; Liu YF(刘云峰); Jiang ZL(姜宗林); Wang, Y (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam LHD, Beijing 100190, Peoples R China.
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| 发表期刊 | SHOCK WAVES
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| 2016
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| 卷号 | 26期号:6页码:835-844 |
| ISSN | 0938-1287
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| 摘要 | When the measurement of aerodynamic forces is conducted in a hypersonic shock tunnel, the inertial forces lead to low-frequency vibrations of the model, and its motion cannot be addressed through digital filtering because a sufficient number of cycles cannot be obtained during a tunnel run. This finding implies restrictions on the model size and mass as the natural frequencies are inversely proportional to the length scale of the model. Therefore, the force measurement still has many problems, particularly for large and heavy models. Different structures of a strain gauge balance (SGB) are proposed and designed, and the measurement element is further optimized to overcome the difficulties encountered during the measurement of aerodynamic forces in a shock tunnel. The motivation for this study is to assess the structural performance of the SGB used in a long-test-duration JF12 hypersonic shock tunnel, which has more than 100 ms of test time. Force tests were conducted for a large-scale cone with a semivertex angle and a length of 0.75 m in the JF12 long-test-duration shock tunnel. The finite element method was used for the analysis of the vibrational characteristics of the Model-Balance-Sting System (MBSS) to ensure a sufficient number of cycles, particularly for the axial force signal during a shock tunnel run. The higher-stiffness SGB used in the test shows good performance, wherein the frequency of the MBSS increases because of the stiff construction of the balance. The experimental results are compared with the data obtained in another wind tunnel and exhibit good agreement at and . |
| 关键词 | Hypersonic Shock Tunnel
Force Measurement
Strain Gauge Balance
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| DOI | 10.1007/s00193-015-0616-x
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| URL | 查看原文
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| 收录类别 | SCI
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| 语种 | 英语
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| WOS记录号 | WOS:000386772200013
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| 关键词[WOS] | Hypersonic shock tunnel
; Force measurement
; Strain gauge balance
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| WOS研究方向 | Mechanics
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| WOS类目 | Mechanics
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| 项目资助者 | The force tests were conducted in collaboration with Prof. W. Zhao and Dr. C. Yuan of the Institute of Mechanics. Prof. Z. Bi and Engineer J. Liu of CAAA gave us good advice on the design of the SGB. We are grateful for their cooperation. This study was supported by the National Natural Science Foundation of China (Project Number 11302232).
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| 课题组名称 | LHD激波与爆轰物理
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| 论文分区 | Q3
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| 力学所作者排名 | True
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/59691
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| 专题 | 高温气体动力学国家重点实验室
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| 通讯作者 | Wang, Y (reprint author), 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,Liu YF,Jiang ZL,et al. Design of a pulse-type strain gauge balance for a long-test-duration hypersonic shock tunnel[J]. SHOCK WAVES,2016,26,6,:835-844.
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| APA |
汪运鹏,刘云峰,姜宗林,&Wang, Y .(2016).Design of a pulse-type strain gauge balance for a long-test-duration hypersonic shock tunnel.SHOCK WAVES,26(6),835-844.
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| MLA |
汪运鹏,et al."Design of a pulse-type strain gauge balance for a long-test-duration hypersonic shock tunnel".SHOCK WAVES 26.6(2016):835-844.
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