| 非接触式数字光纤叶片测振系统研究及应用 |
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| 引用本文： | 胡伟,王德友,杜少辉,蔚夺魁.非接触式数字光纤叶片测振系统研究及应用[J].航空发动机,2010,36(1):38-40. |
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| 作者姓名： | 胡伟 王德友 杜少辉 蔚夺魁 |
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| 作者单位： | 北京航空天大学能源与动力工程学院,北京,100191 |
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| 摘 要： | 应用非接触式数字光纤叶片测振系统对叶片整数阶次振动(共振)与非整数阶次振动进行了分析。通过模拟试验器和台架压气机试验证明,应用该系统以及相关算法可以有效测量、监测和分析叶片共振和颤振等非整阶次振动,能较准确地评估叶片振动特征;其结果与应变片测量结果一致。
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| 关 键 词： | 表面氧化 RP-3航空煤油 结焦 不锈钢 热氧化 |
Investigation and Application of Non-Contact Digital Optical Fiber Rotor Blade Vibration Measurement System |
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| Authors: | HU Wei WANG De-you DU Shao-hui Yu Duo-kui |
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| Institution: | (School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100191, China) |
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| Abstract: | The same kind of stainless steel, which was inoxidized and preoxidized in the high temperature heating furnace was immersed into the 60Oral of RP-3 aviation kerosene. At 5MPa pressure, RP-3 aviation kerosene was heated up to 400℃ and then cooled to ambient temperature. The quantity of stainless steel coking was measured with weight difference method . The experimental investingation of RP-3 aviation kerosene thermal oxidation coking on the stainless steel was conducted. The inhibition of surface oxidizing layer on aviation kerosene thermal oxidation coking was analyzed. The results show that oxidation has inhibition on the stainless steel coking and the deeper the surface oxidizing is, the stronger the inhibition is . |
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| Keywords: | oxidizing RP-3 aviation kerosene coking stainless steel thermal oxidation |
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