航天推进技术研究院主办
Li Qiqi,Ye Bin,Chen Feng,et al.Processing and simulating of frequency signal in liquid propellant rocket engine test[J].Journal of Rocket Propulsion,2008,34(05):39-42.
液体火箭发动机试验 频率量信号的处理与仿真
- Title:
- Processing and simulating of frequency signal in liquid propellant rocket engine test
- 分类号:
- V434.3
- 文献标志码:
- A
- 摘要:
- 液体火箭发动机试验中频率量(流量、转速)数据曲线不规整.存在着“毛 刺”,影响了数据的准确性。采用仿真方法优化频率量信号采集模式,并用实际试验数据进行 了验证。结果表明,仿真方法优化频率信号采集模式能有效地减少频率量曲线中的“毛刺”。
- Abstract:
- In test of liquid propellant rocket engine.burr’S occurrence in the data curve of fre— quency signal such as flow rate and rotating speed of pump affects the accuracy of measured data. According to optimizing the sampling mode of frequency signal,a simulation method is adopted to reduce the occurring burr in this paper.The method mentioned has been verified in real test and the result shows that it can reduce the burr of the frequency curve effectively.
参考文献/References:
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备注/Memo
收稿日期:2008-08-06;修回13期:2008-09-11。基金项目:民用航天科研预先研究项目(C2220060304)。 作者简介:李琪琪(1981一)。女,工程师,研究领域为液体火箭发动机试验数据分析、数字信号处理。