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基于最小二乘法和SSA算法的行星齒輪箱微弱振動(dòng)故障探測
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西安思源學(xué)院

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Weak vibration fault detection of planetary gearbox based on least squares method and SSA algorithm
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    摘要:

    行星齒輪箱是一種常用于工業(yè)機械和車(chē)輛傳動(dòng)系統中的重要裝置,其長(cháng)期運轉和負荷導致行星齒輪箱存在著(zhù)微弱振動(dòng)故障的風(fēng)險,通過(guò)研究行星齒輪箱微弱振動(dòng)故障的特征和變化趨勢,可以提前發(fā)現潛在故障跡象,提高齒輪箱的安全性。然而,行星齒輪箱微弱振動(dòng)信號具有復雜的時(shí)域和頻域特征,且其振動(dòng)信號非常微弱,并富含大量噪聲,為行星齒輪箱的故障探測工作帶來(lái)較大難度。為此,提出基于最小二乘法和SSA算法的行星齒輪箱微弱振動(dòng)故障探測方法。模擬行星齒輪箱工作與振動(dòng)流程,根據不同故障下齒輪箱的工作特征,設置微弱振動(dòng)故障探測標準。采集行星齒輪箱微弱振動(dòng)信號,利用最小二乘法降低行星齒輪箱微弱振動(dòng)信號中的噪聲含量。利用SSA算法提取行星齒輪箱微弱振動(dòng)信號特征,根據提取特征與設置標準的匹配,得出故障類(lèi)型和故障參數的探測結果。通過(guò)性能測試實(shí)驗得出結論:所提方法探測行星齒輪箱微弱振動(dòng)信號的信噪比明顯降低,故障探測范圍擴大了353.94mm2,具有較好的探測能力。

    Abstract:

    planetary gearbox is a kind of commonly used in industrial machinery and vehicle transmission system, its long-term operation and load lead to the risk of weak vibration failure, by studying the characteristics of the planetary gearbox weak vibration fault and trend, can find potential signs of failure in advance, improve the safety of the gear box. However, the weak vibration signal of planetary gearbox has complex time domain and frequency domain characteristics, and its vibration signal is very weak, and rich in a large amount of noise, which brings great difficulty to the fault detection work of planetary gearbox. Therefore, the method of detecting weak vibration fault based on least squares and SSA algorithm is proposed. Simate the working and vibration process of planetary gearbox, and set the weak vibration fault detection standard according to the operating characteristics of the gearbox under different faults. Collect the weak vibration signal of the planetary gearbox and reduce the noise content of the planetary gearbox by least squares. The SSA algorithm is used to extract the weak vibration signal features of the planetary gearbox, and to obtain the detection results of fault types and fault parameters according to the matching between the extracted features and the setting standard. Through the performance test experiment, the conclusion is that the signal-to-noise ratio of the weak vibration signal of the planetary gearbox is significantly reduced, the fault detection range is expanded by 353.94mm2, and it has a good detection ability.

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嚴峰軍.基于最小二乘法和SSA算法的行星齒輪箱微弱振動(dòng)故障探測計算機測量與控制[J].,2024,32(11):56-62.

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歷史
  • 收稿日期:2024-03-18
  • 最后修改日期:2024-05-16
  • 錄用日期:2024-05-21
  • 在線(xiàn)發(fā)布日期: 2024-11-19
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