Propagation path and failure behavior analysis of cracked gears under different initial angles

Chen, Yunxia; Jin, Yi; Liang, Xihui; Kang, Rui

doi:10.1016/j.ymssp.2018.03.033

Cited by 32 publications

(12 citation statements)

References 31 publications

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“…In this part, the crack propagation increment l s is assumed to be 0.2 mm. 33,40 According to the fracture mechanics, the mode I and II stress intensity factors K I , K II are used to determine the crack propagation angle h. In order to calculate the mode I and II stress intensity factors K I , K II , the finite element model is established (see Figure 2). In the finite element model, the degrees of freedom of the nodes at the hub circles of the cracked gear are constrained.…”

Section: Crack Propagation Modelmentioning

confidence: 99%

“…Initial crack parameters, including crack initial angle ψ , crack initial length l 0 , and initial crack propagation angle υ (see Figure 1(a)) have a certain influence on the crack propagation path. However, it has been proved that the crack initial angle ψ has the most obvious influence on the crack growth path, 33 which indicates that it is important to determine the exact crack initial angle. In this paper, the crack initial angle is determined according to the maximum tooth root stress position of the healthy gear (see Figure 1(b)).…”

Section: Simulation Modelmentioning

confidence: 99%

“…Furthermore, Chen et al 30,31 calculated the mesh stiffness of spur gears with different crack parameters and crack types and analyzed the vibration characteristics under different crack depths. Based on the numerical simulation and experimental method, the differences between the vibration signals with the tooth crack and spalling failure were discussed by Ma et al 32 Chen et al 33 simulated the crack propagation path using Franc 2 D. Based on the crack path and potential energy method, the time-varying mesh stiffness under different crack lengths and crack paths was calculated. Finally, the vibration signals of cracked gear were obtained from the proposed model with 6 degrees of freedom.…”

Section: Introductionmentioning

confidence: 99%

“…32 Chen et al. 33 simulated the crack propagation path using Franc 2 D. Based on the crack path and potential energy method, the time-varying mesh stiffness under different crack lengths and crack paths was calculated. Finally, the vibration signals of cracked gear were obtained from the proposed model with 6 degrees of freedom.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Vibration characteristic analysis of spur gear systems under tooth crack or fracture

Chen

Huangfu

et al. 2019

Journal of Low Frequency Noise, Vibration and Active Control

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Tooth fractures and cracks are common defects in gear transmission systems. Crack propagation paths of the spur gears are acquired using the fracture mechanics theory. Based on the simulated crack propagation path, the flexible body model of the cracked gear system is established in multibody dynamic software ADAMS. The vibration signals of cracked gear under different torques obtained from the simulation are verified by the experimental results. Some statistical indictors (root mean square and Kurtosis) are used to quantify the damage degree. In addition, the fault features of the gear system under crack and tooth fracture faults are analyzed by utilizing the instantaneous energy. The results indicate that the amplitude of the harmonics of the meshing frequency and the sideband frequencies increase gradually with the increase of torques and crack lengths. Especially, for the tooth fracture fault, its influence on Kurtosis value is particularly obvious. Meanwhile, according to the instantaneous energy, the tooth fracture fault will result in severe energy impacts and cause a sharp increase in the vibration amplitude.

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Section: Crack Propagation Modelmentioning

confidence: 99%

Section: Simulation Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Vibration characteristic analysis of spur gear systems under tooth crack or fracture

Chen

Huangfu

et al. 2019

Journal of Low Frequency Noise, Vibration and Active Control

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show abstract

“…Xu [16,17] studied the influence of measuring points on the transmission path under crack and missing tooth fault of planet gear respectively. Chen [18] studied the propagation path and failure behavior of cracked gears at different initial angles.…”

Section: Introductionmentioning

confidence: 99%

Transmission characteristics of planetary gear wear in multistage gear transmission system

Wang¹,

Li²,

Zhao³

2019

J. vibroeng.

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Gear tooth surface wear is a common failure mode. It takes a long time and can cause other major faults. The wear fault signal is weak and hard to identify. This paper reveals the transmission characteristics of the planetary gear wear and the relationship between multistage gear meshing through the transmission characteristic analysis. Taking the multistage gear transmission system fault simulation test rig as the research object, a three-dimensional solid rigid-flexible coupling model of the system was established. The contact force signals from each pair of gears in the state of planetary gear wear were obtained by dynamic simulation. The test signals of the fixed-axis gearbox and planetary gearbox were obtained under normal and planetary gear wear states. Comparing the transmission characteristics of the system under normal and planetary gear wear states, the vibration mechanism of the wear fault and the correlative characteristic between gearboxes were revealed.

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Failure Propagation Analysis of Complex System Based on Multiple Potential Field

Qin

Kou

et al. 2020

Green, Smart and Connected Transportation Systems

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Propagation path and failure behavior analysis of cracked gears under different initial angles

Cited by 32 publications

References 31 publications

Vibration characteristic analysis of spur gear systems under tooth crack or fracture

Vibration characteristic analysis of spur gear systems under tooth crack or fracture

Transmission characteristics of planetary gear wear in multistage gear transmission system

Failure Propagation Analysis of Complex System Based on Multiple Potential Field

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