Internal Ballistics Model and Analysis of Rod-less Cylinder Ejection Device Based on real gas effect

DOI

10.2991/ifeesd-16.2016.78How to use a DOI?

Keywords

rod-less cylinder; real gas effect; dynamics analysis; internal ballistics model; ejection device.

Abstract

In the launching processes of Rod-less Cylinder ejection device, the pressure is much higher than the air critical pressure, and the temperature can deviate significantly from the Boyle temperature. In such situations, the thermo-physical properties and pneumatic performance can't be described accurately by the ideal gas law. The mathematical expression of pneumatic interior ballistics model are deduced on the basis of the 'RK' state equation for the lifting cylinder. The interior ballistics equations are solved by using MATLAB software. The change rule of thermodynamic and kinematics parameters are obtained in the process of catapult. The comparison results show that the real gas effect accelerates the pressure decreasing rates in the hyperbaric pressure chamber and decelerates the increasing rates in the low pressure chamber. Besides, the real gas effect reduces the missile launching speed under the same piston stroke. The results of numerical calculation can provided reference for prototype design.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Lin Yao
AU  - Dawei Ma
AU  - Guigao Le
PY  - 2016/05
DA  - 2016/05
TI  - Internal Ballistics Model and Analysis of Rod-less Cylinder Ejection Device Based on real gas effect
BT  - Proceedings of the 2016 International Forum on Energy, Environment and Sustainable Development
PB  - Atlantis Press
SP  - 443
EP  - 447
SN  - 2352-5401
UR  - https://doi.org/10.2991/ifeesd-16.2016.78
DO  - 10.2991/ifeesd-16.2016.78
ID  - Yao2016/05
ER  -