| 刘晨昊,谷 俊,田光雄,梁平昊,刘泽伟,冀海峰,王保良.航空发动机回油管路油气两相空隙率测量及
温度补偿方法的研究[J].电子测量与仪器学报,2022,36(4):214-220 |
| 航空发动机回油管路油气两相空隙率测量及
温度补偿方法的研究 |
| Study on voidage measurement of gas-oil two-phase and its temperaturecompensation method in oil return tube of aeroengine |
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| DOI： |
| 中文关键词: 油气两相流 空隙率 温度补偿 主成分回归 |
| 英文关键词:gas-oil two-phase flow voidage temperature compensation principal component regression |
| 基金项目: |
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| Author | Institution |
| Liu Chenhao | 1. Shenyang Aeroengine Research Institute, Aero Engine Corporation of China,2. Key Laboratory of Power Transmission Technology on Aero-engine, Aero Engine Corporation of China |
| Gu Jun | 1. Shenyang Aeroengine Research Institute, Aero Engine Corporation of China,2. Key Laboratory of Power Transmission Technology on Aero-engine, Aero Engine Corporation of China |
| Tian Guangxiong | 3. State Key Laboratory of Industrial Control Technology, College of Control Science and
Engineering, Zhejiang University |
| Liang Pinghao | 3. State Key Laboratory of Industrial Control Technology, College of Control Science and
Engineering, Zhejiang University |
| Liu Zewei | 3. State Key Laboratory of Industrial Control Technology, College of Control Science and
Engineering, Zhejiang University |
| Ji Haifeng | 3. State Key Laboratory of Industrial Control Technology, College of Control Science and
Engineering, Zhejiang University |
| Wang Baoliang | 3. State Key Laboratory of Industrial Control Technology, College of Control Science and
Engineering, Zhejiang University |
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| 中文摘要: |
| 航空发动机回油管路处于润滑油和空气两相混合流动状态,实现管路中油气两相空隙率的测量对深入了解回油管路工
作特性,进行管路流动分析及设计具有重要的意义。 本文根据回油管路的运行状态,设计了适用于高温工况的 8 电极电容层析
成像( electrical capacitance tomography,ECT) 传感器;利用采集的阵列电容信号,建立了基于主成分回归( principle component
regression,PCR)的空隙率测量模型;并针对回油管路温度变化范围大所引起的测量误差,提出了一种基于满管电容标定值的空
隙率测量温度补偿方法,并进行了实验研究,结果表明,本文所提出的空隙率测量模型及温度补偿方法是有效的,在 20℃ ~
180℃温度变化范围内,空隙率测量的绝对误差均在 10%以内。 |
| 英文摘要: |
| The return oil pipeline of aeroengine works in the mixed flow state of lubricating oil and air. The voidage measurement of oilgas two-phase in the pipeline is of great significance for understanding its characteristics, analysis and design of the pipeline. In this
work, according to the practical state of oil return tube, an 8-electrode electrical capacitance tomography (ECT) sensor used for hightemperature operating condition was designed. With the array capacitance data from the designed ECT sensor, a voidage measurement
model based on principal component regression (PCR) was established, and a new temperature compensation method was presented by
calibrated capacitance value at different temperature in oil-filled full tube. The experiments were carried out, and the results showed that
the presented voidage measurement model and its temperature compensation method were effective, and that the maximum absolute error
of the voidage measurement was less than 10% with the temperature range of 20 ℃ ~ 180 ℃ . |
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