Force transmission characteristics of force-measuring system in impulse combustion wind tunnel

LI Shichao,GAO Hongli, LIU Bokai, FU Guoqiang, LU Caijiang

Journal of Vibration and Shock ›› 2018, Vol. 37 ›› Issue (21) : 117-125.

PDF(1685 KB)
PDF(1685 KB)
Journal of Vibration and Shock ›› 2018, Vol. 37 ›› Issue (21) : 117-125.

Force transmission characteristics of force-measuring system in impulse combustion wind tunnel

  • LI Shichao,GAO Hongli, LIU Bokai, FU Guoqiang, LU Caijiang
Author information +
History +

Abstract

Studying force transmission characteristics of force-measuring system in impulse combustion wind tunnel can help to improve the accuracy of evaluating wind tunnel force measurement data.At present, this kind study is rare.A method for wind tunnel force-measuring system’s force transmission characteristics analysis based on the finite element simulation was proposed.Firstly, the dynamic model of the force-measuring system was established based on the parametric recognition method.The correctness of this built finite element model was verified using the system’s modal tests.Secondly, based on the theory of aircraft dynamics, force transmission characteristics between gravity center of an aircraft model and floating frame of a balance were selected to describe the force transmission characteristics of the force-measuring system.Then, a harmonic response analysis for the finite element model of the force-measuring system was performed to obtain force transmission characteristics between gravity center of an aircraft model and floating frame of a balance.Thirdly, the aerodynamic force acting on the aircraft model was equivalent to a concentrated force acting on the gravity center of the aircraft model, and the concentrated force was converted into a series of harmonic force components with Fourier transform.Based on the force transmission characteristics between the gravity center of the aircraft model and the floating frame of the balance, a series of harmonic force components were transferred from the gravity center of the aircraft model to the floating frame of the balance and then their new values were obtained.Finally, according to the balance test resolution, the harmonic force component unrecognized by the balance was screened.The ratio of this harmonic force component’s energy to the total signal energy was calculated to evaluate the force transmission characteristics of the force-measuring system.

Key words

 impulse combustion wind tunnel / force measuring system / fourier transform / frequency response function / force transmission characteristics

Cite this article

Download Citations
LI Shichao,GAO Hongli, LIU Bokai, FU Guoqiang, LU Caijiang. Force transmission characteristics of force-measuring system in impulse combustion wind tunnel[J]. Journal of Vibration and Shock, 2018, 37(21): 117-125

References

[1]  Huang Y, Dong L, Zhao K, et al. On the correlation of force test results of a tactical missile calibration model in five different wind tunnels[J]. Liuti Lixue Shiyan yu Celiang, 2002, 16(2): 16-20.
[2]  Satheesh K, Jagadeesh G. Analysis of an internally mountable accelerometer balance system for use with non-isotropic models in shock tunnels[J]. Measurement, 2009, 42(6): 856-862.
[3]  Johnson T H, Parker P A, Landman D. Calibration modeling of nonmonolithic wind-tunnel force balances[J]. Journal of Aircraft, 2010, 47(6): 1860-1866.
[4]  王泽江, 孙鹏, 李绪国等. 吸气式高超声速飞行器内外流同时测力试验[J]. 航空学报, 2015, 36(3): 797-803.
WANG Zejiang,SUN Peng,LI Xuguo,et al. Force test on internal and external flow simultaneous measurement of air-breathing hypersonic vehicle[J]. Acta Aeronautica ET Astronautica Sinica,2015, 36(3): 797-803.
[5]  段文博, 昂海松, 肖天航. 主动变形扑翼飞行器的设计和风洞测力试验研究[J]. 航空学报, 2013, 34(3): 474-486.
DUAN Wenbo,ANG Haisong,XIAO Tianhang. Design and wind tunnel test of an active morphing wing ornithoper[J]. Acta Aeronautica ET Astronautica Sinica,2013, 34(3): 474-486.
[6]  乐嘉陵, 刘伟雄, 贺伟等. 脉冲燃烧风洞及其在火箭和超燃发动机研究中的应用[J]. 实验流体力学, 2005, 19(1): 1-10.
LE Jia-ling,LIU Wei-xiong,HE Wei,et al. Impulse combustion wind tunnel and its application in rocket and scramjet research[J]. Journal of Experiments in Fluid Mechanics,2005, 19(1): 1-10.
[7]  刘伟雄, 谭宇, 毛雄兵等. 一种新运行方式脉冲燃烧风洞研制及初步应用[J]. 实验流体力学, 2007, 21(4): 59-64.
LIU Wei-xiong,TAN Yu, MAO Xiong-bing,et al. The development and preliminary application of a pulse combustion wind tunnel with new running way[J]. Journal of Experiments in Fluid Mechanics,2007, 21(4): 59-64.
[8]  王锋, 贺伟, 毛鹏飞等. 脉冲风洞测力系统建模与载荷辨识方法研究[J]. 振动与冲击, 2015, 34(1): 94-103.
WANG Feng,HE Wei,MAO Peng-fei,et al. Dynamic modeling of testing system in impulse facilities and load identification method[J]. Journal of Vibration and Shock,2015, 34(1): 94-103.
[9]  文娟, 刘伟雄, 高宏力等. 高超声速飞行器模型振动及传力特性研究[J]. 振动, 测试与诊断, 2015 (2015 年 05): 961-967.
WEN Juan,LIU Wei-xiong,GAO Hong-li,et al. Vibration and force transmission characteristics analysis of hypersonic vehicle model[J]. Journal of Vibration,Measurement & Diagnosis,2015: 961-967.
[10]  Sanderson S, Simmons J. A drag measurement technique for free piston shock tunnels[C]//29th Aerospace Sciences Meeting. 1991: 549.
[11]  罗也凡, 毕志献. 脉冲型风洞用加速度计测力天平[J]. 气动实验与测量控制, 1996, 10(1): 59-64.
LUO Ye-fan,BI Zhi-xian. Accelerometer load balance in impulse wind tunnel[J]. Experiments and Measurements in Fluid Mechanics,1996, 10(1): 59-64.
[12]  Bernstein L, Pankhurst R C. Force measurements in short-duration hypersonic facilities[R]. ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT NEUILLY-SUR-SEINE (FRANCE), 1975.
[13]  Capone F J, Igoe W B. Reduction of wind-tunnel-model vibration by means of a tuned damped vibration absorber installed in the model[J]. 1968.
[14]  陈卫东, 邵敏强, 杨兴华等. 跨声速风洞测力模型主动减振系统的试验研究[J]. 振动工程学报, 2007, 20(1): 91-96.
CHEN Wei-dong,SHAO Min-qiang,YANG Xing-hua,et al. Experimental evaluation of an active vibration control system for wind tunnel aerodynamic models[J]. Journal of Vibration  Engineering,2007, 20(1): 91-96.
[15]  Zhang G P, Huang Y M, Shi W H, et al. Predicting dynamic behaviours of a whole machine tool structure based on computer-aided engineering[J]. International Journal of Machine Tools and Manufacture, 2003, 43(7): 699-706.
[16]  邓聪颖, 殷国富, 肖红. 基于能量分布的机床整机动态特性优化方法[J]. 振动. 测试与诊断, 2015, 35(6): 1083-1089.
DENG Cong-yin,YIN Guo-fu,XIAO Hong. Dynamic characteristics optimization method based on energy distribution of Machine tool[J]. Journal of Vibration,Measurement & Diagnosis,2015, 35(6): 1083-1089.
[17]  Yoshimura M. Computer-aided design improvement of machine tool structure incorporating joint dynamics data[J]. Annals of the CIRP, 1979, 28(1): 241-246.
[18]  张学良. 机械结合面动态特性及应用[M]. 北京:中国科学技术出版社, 2002.55-99.
ZHANG Xue-liang . The dynamic characteristics of machine joint surface and applications[M]. Beijing:china science & technology press,2002.55-99.

PDF(1685 KB)

Accesses

Citation

Detail

Sections
Recommended

/