Journal of Astronautics

Journal of Astronautics ›› 2016, Vol. 37 ›› Issue (12): 1419-1424.doi: 10.3873/j.issn.1000-1328.2016.12.003

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Stress Wave Force Balance for Use in Hypersonic Impulse Facilities

LIU Shi ran, YANG Yun xiu, HU Shou chao, HUANG Jun   

  1. 1. Hypervelocity Aerodynamic Institute of China Aerodynamics Research and Development Center, Mianyang 621000, China；
    2. Southwest Institute of Technical Physics, Chengdu 610000, China
  • Received:2016-06-01 Revised:2016-10-13 Online:2016-12-15 Published:2016-12-25

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Abstract:

According to the hypersonic impulse tunnel test environment with strong vibration interference and extreme short effective test time, a kind of single component stress wave force balance sensed by piezoelectric ceramics and with reflect stress wave dissipation ability is put forward. The basic principles, structure design formulas, inner suspended shield structure, and calibration methods are introduced in detail. The axial force of a hemisphere model is tested with the balance in Φ0.6m shock tunnel in CARDC. The feasibility of the technique is verified from the test results.

Key words: Force measuring in wind tunnel, Hypersonic impulse facilities, Stress wave force balance, Deconvolution

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