Volume 32 Issue 1
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raSimulation study of working stability of a gas pressure regulator under external excitation vibration conditions.[J]. Journal of Aerospace Power, 2017, 32(1): 233-268. doi: 10.13224/j.cnki.jasp.2017.01.031
Citation: raSimulation study of working stability of a gas pressure regulator under external excitation vibration conditions.[J]. Journal of Aerospace Power, 2017, 32(1): 233-268. doi: 10.13224/j.cnki.jasp.2017.01.031

raSimulation study of working stability of a gas pressure regulator under external excitation vibration conditions.

doi: 10.13224/j.cnki.jasp.2017.01.031
  • Received Date: 2015-04-20
  • Publish Date: 2017-01-28
  • Abstract:For the purpose of studying the working stability of pressure regulator working in launch vehicle gas pressurization system under external excitation vibration conditions, the vibration exciting source was introduced through the displacement coordinate of the regulator shell to modify the pressure regulator model and the dynamic working process of a gas pressurization system was simulated under external excitation conditions. As the pressure oscillation at a presssure regulator outlet was observed, contrast calculations considering different downstream pipe sizes and different parameters of a pressure regulator were carried out. The result shows that increasing the pipe sizes, decreasing the mass of the valve spool and the friction force between the valve spool and the shell can reduce the pressure oscillation intensity and benefit the regulators working stability under external excitation vibration conditions. The numerical study provides a reference for the design and optimization of pressure regulators and gas pressurization systems.

     

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