Fault analysis of spur gear using XFEM

Raghav, Mahendra Singh; Singh, Amandeep; Patel, Shivdayal

doi:10.1016/j.engfailanal.2022.106060

Cited by 7 publications

(2 citation statements)

References 35 publications

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“…Wu et al [24] proposed an analytical-FE method to calculate the time-varying mesh stiffness (TVMS) of gear tooth crack. The TVMS and crack propagation behavior in spur gear tooth were, respectively, studied using the extended FE method by Govind Verma et al [25] and Mahendra Singh et al [26]. Even though these studies concern the premise of traditional rotating machinery, the FE method has been proven to be an efficient tool for fault feature analysis of gears.…”

Section: Introductionmentioning

confidence: 99%

“…Fatigue fracture of gear teeth is one of the most dangerous failure forms of gears. Existing research on gear tooth breakage mainly focuses on the influence of fault on gear parameters [23] and system dynamic characteristics [24][25][26]. Chaari et al [23] put forward the calculation method of broken tooth gear stiffness and obtained the influence of a broken tooth on gear meshing stiffness.…”

Section: Introductionmentioning

confidence: 99%

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Dynamic Analysis and Fault Diagnosis for Gear Transmission of a Vibration Exciter of a Mine-Used Vibrating Screen under Different Conditions

Cheng

Cao

et al. 2022

Applied Sciences

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The helical gear pair of a box-type vibration exciter of a mine-used linear vibrating screen is subjected to complex excitation and prone to broken tooth failures. At present, investigation regarding the difference and particularity between gear transmission in vibrating screens (i.e., vibration machinery) and that in rotating machinery is still a challenge, which is the key to revealing the performance and failure mechanism of gear transmission in the premise of application to vibrating screens. In order to intuitively display the peculiarity of gear transmission on the exciter, an innovative virtual prototype model of a gear pair of a vibrating screen exciter is proposed. This model considers the effects of internal and external excitation, such as the friction and lubrication of the gear, strong alternating load produced by a large eccentric block, the reciprocating motion of the screen body, the large clearance of bearing and so on, and its correctness is verified. Based on the comparison, the inducement for the high fatigue rate of exciter gears is revealed. Models of a vibrating screen’s excitation system with different degrees of broken teeth are also established, and tooth fault features are proposed for fault detection. Sensitive indicators for the degradation degree of tooth damage are put forward, and the monitoring strategy is presented that with the increase of damage degree, the waveform index and pulse index of axial vibration acceleration increase. The analysis results provide powerful support for the optimal design of the vibrating screen’s exciter gears and fault diagnosis.

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Section: Introductionmentioning

confidence: 99%