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Force measurement using strain-gauge balance in a shock tunnel with long test duration
Wang YP(汪运鹏); Liu YF(刘云峰); Luo ZT(罗长童); Jiang ZL(姜宗林); Wang, YP (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam LHD, Beijing 100190, Peoples R China.
Source PublicationREVIEW OF SCIENTIFIC INSTRUMENTS
2016
Volume87Issue:5Pages:55108
ISSN0034-6748
AbstractForce tests were conducted at the long-duration-test shock tunnel JF12, which has been designed and built in the Institute of Mechanics, Chinese Academy of Sciences. The performance tests demonstrated that this facility is capable of reproducing a flow of dry air at Mach numbers from 5 to 9 at more than 100 ms test duration. Therefore, the traditional internal strain-gauge balance was considered for the force tests use in this large impulse facility. However, when the force tests are conducted in a shock tunnel, the inertial forces lead to low-frequency vibrations of the test model and its motion cannot be addressed through digital filtering because a sufficient number of cycles cannot be found during a shock tunnel run. The post-processing of the balance signal thus becomes extremely difficult when an averaging method is employed. Therefore, the force measurement encounters many problems in an impulse facility, particularly for large and heavy models. The objective of the present study is to develop pulse-type sting balance by using a strain-gauge sensor that can be applied in the force measurement of 100 ms test time, especially for the force test of the large-scale model. Different structures of the S-series (i.e., sting shaped balances) strain-gauge balance are proposed and designed, and the measuring elements are further optimized to overcome the difficulties encountered during the measurement of aerodynamic force in a shock tunnel. In addition, the force tests were conducted using two large-scale test models in JF12 and the S-series strain-gauge balances show good performance in the force measurements during the 100 ms test time. Published by AIP Publishing.
DOI10.1063/1.4950781
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000379187600106
WOS Research AreaInstruments & Instrumentation ; Physics
WOS SubjectInstruments & Instrumentation ; Physics, Applied
Funding OrganizationThis work was supported by the National Natural Science Foundation of China (Grant No. 11302232).
DepartmentLHD激波与爆轰物理
Classification二类
RankingTrue
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/59574
Collection高温气体动力学国家重点实验室
Corresponding AuthorWang, YP (reprint author), 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,Liu YF,Luo ZT,et al. Force measurement using strain-gauge balance in a shock tunnel with long test duration[J]. REVIEW OF SCIENTIFIC INSTRUMENTS,2016,87(5):55108.
APA 汪运鹏,刘云峰,罗长童,姜宗林,&Wang, YP .(2016).Force measurement using strain-gauge balance in a shock tunnel with long test duration.REVIEW OF SCIENTIFIC INSTRUMENTS,87(5),55108.
MLA 汪运鹏,et al."Force measurement using strain-gauge balance in a shock tunnel with long test duration".REVIEW OF SCIENTIFIC INSTRUMENTS 87.5(2016):55108.
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