基于短时能量的压气机喘振检测

Measurement & Control Technology(2010)

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Abstract
及时地检测压气机喘振对提高发动机性能、保障飞行安全具有重要意义。在进入喘振状态的过程中,压气机出口总压脉动增大,短时能量亦增大。通过某型压气机节流试验数据,验证了短时能量在喘振检测中的可行性。该算法可检测模态波或突尖波扰动引起的喘振,信号经平方运算后提高了信噪比,算法简单,易于实现。
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Key words
surge,short-time energy,compressor
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