Journal of Drive and Control (드라이브 ㆍ 컨트롤)

The Korean Society for Fluid Power and Construction Equipment (유공압건설기계학회)
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Modeling and Simulation of the Pneumatic Part in a Cold Gas Blow-Down Type Hydraulic Actuation System for a Missile

상온기체 블로우다운 방식을 사용한 유도무기용 유압식 구동장치의 공압부에 대한 모델링 및 시뮬레이션

  • Park, Hee Seung (The 1st Research and Development Institute, Agency for Defense Development)
  • Received : 2016.06.01
  • Accepted : 2016.07.04
  • Published : 2016.09.01
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Abstract

A cold gas blow-down hydraulic actuation system is widely used in missiles that require an actuation system with a fast response time under a limited space with a short operating time and large loads on the actuators. The system consists of a pneumatic part that supplies the regulated high-pressure gas to a reservoir, and a hydraulic part that supplies pressurized hydraulic oil to the actuators by the pressurized gas in the reservoir. This paper proposes a mathematical model to analyze and simulate the pneumatic part of an actuation system that supplies the operating power to the actuators. The mathematical model is based on the ideal gas equation and also considers the models for heat transfer. The model is applied to the pressure vessel and the gas part of the reservoir, and the model for the pneumatic part is established by connecting the two models for the parts. The model is validated through a comparison of the simulation results with the experimental results. The comparison shows that the suggested model could be useful in the design of the pneumatic part of a cold gas blow-down type hydraulic actuation system.

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References

  1. Y. Lee, "A Study on the Actuating Device Technology in Guided Weapon System", Journal of information and security, Vol 7, No. 2, pp. 145-154, 2007.
  2. J.J. Proczka et al., "Guidelines for the pressure and efficient sizing of pressure vessels for compressed air energy storage", Energy Conversion and Management, Vol 65, pp. 597-605, 2013. https://doi.org/10.1016/j.enconman.2012.09.013
  3. J.D. Means and R.D. Ulich, "Transient convective heat transfer during and after gas injection into containers", Journal of Heat Transfer, Vol. 97, No. 2, pp. 282-287, 1975. https://doi.org/10.1115/1.3450356
  4. S. Charton, V. Blet, and J.P. Corriou, "A simplified model for real gas expansion between two reservoirs connected by a thin tube", Chemical Engineering Science, Vol. 51, pp. 295-308, 1996. https://doi.org/10.1016/0009-2509(95)00256-1
  5. P.L. Woodfield, M. Monde, and Y. Mitsutake, "Measurement of Averaged Heat Transfer Coefficients in High-Pressure Vessel during Charging with Hydrogen, Nitrogen or Argon Gas", Journal of Thermal Science and Technology, Vol. 2, No. 2, pp. 180-191, 2007. https://doi.org/10.1299/jtst.2.180
  6. R.H.S. Winterton, "Where did the Dittus and Boelter Equation come from?", International Journal of Heat and Mass Transfer, Vol. 41, pp. 809-810, 1998. https://doi.org/10.1016/S0017-9310(97)00177-4
  7. S.W. Churchill, and H.H.S. Chu, "Correlating Equation for Laminar and Turbulent Free Convection from a Horizontal Cylinder," International Journal of Heat and Mass Transfer, Vol. 18, pp. 1049-1053, 1975. https://doi.org/10.1016/0017-9310(75)90222-7
  8. S.W. Churchill, "Free Convection Around Immersed Bodies," in Heat Exchange Design Handbook, Hemisphere Publishing. New York, Section 2.5.7, 1983.
  9. Herbert E. Merritt, "Hydraulic Control Systems," John Wiley & Sons, Inc. USA, pp. 79-87, 1967.Equipments, Vol.9, No.3, pp.23-28, 2012.