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A New Fault Diagnosis Method for Planetary Gearbox

Volume 12, Number 4, July 2016 - SC 58 pp. 389-394


Mechanical Engineering College, Shijiazhuang, China

(Received on May 21, 2015; revised on Nov. 9, Dec. 22, 2015, and March 25, 2016)


Planetary gearbox is widely used in many fields due to its robustness and high power-weight ratio, but implementation of fault diagnosis on it is challenging. This paper proposes a new fault diagnosis method for planetary gearbox based on empirical mode decomposition (EMD) and adaptive multi-scale morphological gradient filter (AMMGF). The proposed method has two dominant strengths: it can be applied to non-linear and non-stationary signal, and it can achieve the goal of de-noising. The framework of the proposed method is introduced first. Experimental data acquired from a planetary gearbox test-rig is then utilized to validate effectiveness of the proposed method. The method is demonstrated to have good performance on both extracting faults characteristic frequency and de-noising.


References: 9

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