Investigation of wind tunnel balance dynamic characteristics' multi-order inertial compensation

Ai Di; Xu Xiaobin; Wang Xiong

doi:10.11729/syltlx20170161

Volume 32 Issue 4

Turn off MathJax

Article Contents

Article Navigation > Journal of Experiments in Fluid Mechanics > 2018 > 32(4): 87-92

Ai Di, Xu Xiaobin, Wang Xiong. Investigation of wind tunnel balance dynamic characteristics' multi-order inertial compensation[J]. Journal of Experiments in Fluid Mechanics, 2018, 32(4): 87-92. doi: 10.11729/syltlx20170161

Citation:

PDF( 1833 KB)

Investigation of wind tunnel balance dynamic characteristics' multi-order inertial compensation

doi: 10.11729/syltlx20170161

Ai Di^{1, 2
,
,},
Xu Xiaobin¹,
Wang Xiong¹

1.
China Aerodynamics Research and Development Center, Mianyang Sichuan 621000, China
2.
Science and Technology on Scramjet Laboratory, China Aerodynamics Research and Development Center, Mianyang Sichuan 621000, China

Received Date: 2017-12-21
Rev Recd Date: 2018-03-30
Publish Date: 2018-08-25

Abstract

Abstract

The structural vibration of the aerodynamic measurement system can be actuated by impulse loads or dynamic loads in aerodynamic measurement tests of hypersonic wind tunnels. Therefore, the useful data and the vibration noise are mingled. The accuracy of the present balance dynamic compensation method is poor since the processing method is over simplified. We simplify the force measurement system to a cantilever beam with an end mass determined by its structural characteristics, and obtain its analytical solutions for free vibration. Study of the free vibration is focused on the impacts of different vibration shapes on force measurement, and the distribution disciplines of acceleration of different vibration shapes. We put forward a new compensation method named 'multi-order inertial compensation method', and obtain the corresponding theoretical compensation coefficients. What's more, we validate this method by finite element analysis and wavelet analysis. The results show that the multi-order inertial compensation method significantly improves the dynamic characteristics of the balance compared with conventional method.
- wind tunnel balance,
- dynamic characteristics,
- inertial compensation,
- aerodynamic force measurement

FullText(HTML)

References(14)

References

[1]	孟宝清, 韩桂来, 姜宗林.结构振动对大型激波风洞气动力测量的干扰[J].力学学报, 2016, 48(1):102-110. http://d.old.wanfangdata.com.cn/Periodical/lxxb201601010 Meng B Q, Hang G L, Jiang Z L. Theoretical investigation on aero-dynamic force measurement interfered by structural vibrations in lagre shock tunnel[J]. Chinese Journal of Theoretical and Applied Mechanics, 2016, 48(1):102-110. http://d.old.wanfangdata.com.cn/Periodical/lxxb201601010
[2]	Draper J W, Lee S W, Marineau E C. Development and Implementation of a hybrid dynamic force measurement system at AEDC tunnel 9[R]. AIAA-2017-1593, 2017.
[3]	Joshi D D, Vadassery P, Lu F K. Acceleration compensation for force measurements in hypersonic shock tunnel[R]. AIAA-2013-1020, 2013.
[4]	Marineau E C. Force measurements in hypervelocity flows with an acceleration compensated piezoelectric balance[J]. Journal of Spacecraft and Rockets, 2011, 48(4):697-700. doi: 10.2514/1.A32047
[5]	Marineau E C, MacLean M, Mundy E P. Force measurements in hypervelocity flows with an acceleration compensated strain gage balance[J]. Journal of Spacecraft and Rockets, 2012, 49(3):474-482. doi: 10.2514/1.A32041
[6]	Smolinski G J. Proof of concept for testing acceleration compensation force balance techniques in short duration flows with a CEV capsule[R]. AIAA-2007-1010, 2007.
[7]	徐科军, 杨双龙, 张进.杆式风洞应变天平动态实验、建模与补偿[J].仪器仪表学报, 2009, 30(10):2123-2130. http://d.old.wanfangdata.com.cn/Periodical/yqyb200910020 Xu K J, Yang S L, Zhang J. Dynamic experiment, modeling and compensation of bar-shaped strain gauge balance for wind tunnel[J]. Chinese Journal of Scientific Instrument, 2009, 30(10):2123-2130. http://d.old.wanfangdata.com.cn/Periodical/yqyb200910020
[8]	杨双龙, 周全, 徐科军.杆式风洞应变天平动态解耦-补偿[J].仪器仪表学报, 2011, 32(7):1598-1605. http://d.old.wanfangdata.com.cn/Periodical/yqyb201107024 Yang S L, Zhou Q, Xu K J. Dynamic decoupling-compensation for bar-shaped wind tunnel strain gauge balance[J]. Chinese Journal of Scientific Instrument, 2011, 32(7):1598-1605. http://d.old.wanfangdata.com.cn/Periodical/yqyb201107024
[9]	周全, 徐科军, 杨双龙.杆式应变天平变负载动态建模和分段动态补偿[J].电子测量与仪器学报, 2012, 26(4):286-297. http://d.old.wanfangdata.com.cn/Periodical/dzclyyqxb201204002 Zhou Q, Xu K J, Yang S L. Dynamic modeling and staged compensation of bar-shaped strain gauge balance with changing load[J]. Journal of Electronic Measurement and Instruement, 2012, 26(4):286-297. http://d.old.wanfangdata.com.cn/Periodical/dzclyyqxb201204002
[10]	张国华, 张文娟, 薛鹏翔.小波分析与应用基础[M].西安:西北工业大学出版社, 2006.
[11]	雷景生, 郝珈玮.基于小波理论的电力系统谐波检测方法[J].上海电力学院学报, 2015, 32(1):66-72. doi: 10.3969/j.issn.1006-4729.2016.01.015 Lei J S, Hao J W. Detection harmonic in power system based on wavelet theroy[J]. Journal of Shanghai University of Electric Power, 2016, 32(1):66-72. doi: 10.3969/j.issn.1006-4729.2016.01.015
[12]	舒泽亮, 郭育华, 连级三.基于小波包多频带分解实现谐波抑制与无功补偿[J].中国电机工程学报, 2006, 26(21):82-87. doi: 10.3321/j.issn:0258-8013.2006.21.013 Shu Z L, Guo Y H, Lian J S. Multi-bands decomposition based on wavelet packet algorithm for harmonic suppression and reactive power compensation[J]. Proceedings of CSEE, 2006, 26(21):82-87. doi: 10.3321/j.issn:0258-8013.2006.21.013
[13]	周龙华, 付青, 余世杰, 等.基于小波变换的谐波检测技术[J].电力系统及其自动化学报, 2010, 22(1):80-85. doi: 10.3969/j.issn.1003-8930.2010.01.015 Zhou L H, Fu Q, Yu S J, et al. Harmonic detection based on wavelet transform[J]. Proceeding of the CSU-EPSA, 2010, 22(1):80-85. doi: 10.3969/j.issn.1003-8930.2010.01.015
[14]	谢官模.振动力学[M].北京:国防工业出版社, 2007.