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Content Provider | IET Digital Library |
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Author | Zheng, Bo Zhao, Chun Liu, Xin Zhao, Shoujun Zhang, Xiaosha |
Abstract | The accumulator is a crucial component of the hydraulic power for servomechanisms of the launch vehicle, which has a significant effect on the performance and the mass power. Traditional design methods are mostly based on empirical formulas, which do not meet the requirements of the fine design of aerospace products. The physical model, the mathematical model of the accumulator and joint simulation model of the energy and the control loop are established, and parameters satisfying the extreme flight operation profiles are obtained, including the discharge volume, charge volume and charge pressure. The flight data of third-stage servomechanisms of the Long March 3 series Launch Vehicle were analysed, which is consistent with the simulation data, indicating that the accumulator has exerted the maximum capability in the extreme flight condition, and the maximum mass power has been realised. |
Starting Page | 1033 |
Ending Page | 1036 |
Page Count | 4 |
Volume Number | 2020 |
e-ISSN | 20513305 |
Issue Number | Issue 14, Nov (2020) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/2020/14 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2020.0069 |
Journal | The Journal of Engineering |
Publisher | The Institution of Engineering and Technology |
Publisher Date | 2020-08-11 |
Access Restriction | Open |
Rights License | Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/) |
Subject Keyword | Accumulator Aerospace Control Aerospace Engineering Computing Aerospace Industry Aerospace Products Aerospace Simulation Aerospace Testing And Simulation Charge Pressure Charge Volume Design Engineering Discharge Volume Empirical Formulas Extreme Flight Condition Extreme Flight Operation Profile Fine Design Flight Data Hydraulic Power Joint Simulation Model Long March 3 Series Launch Vehicle Mass Power Mathematical Model Physical Model Servomechanisms Simulation Data Space Vehicle Third-stage Servomechanisms Vehicle Dynamics Vehicle Mechanics |
Content Type | Text |
Resource Type | Article |
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