Condition monitoring of a single-stage gearbox with artificially induced gear cracks utilizing on-line vibration and acoustic emission measurements

Λούτας, Θεόδωρος; Sotiriades, G.; Kalaitzoglou, I.; Kostopoulos, V.

doi:10.1016/j.apacoust.2009.04.007

Cited by 125 publications

(60 citation statements)

References 14 publications

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“…First the methodology was developed on the single stage gearbox. The single stage gearbox is used for investigation because of relatively simplified construction which enables wide range of modification [1]. Each part of methodology was evaluated by technical experiment.…”

Section: Methodsmentioning

confidence: 99%

Heavy-duty transmission gear shift investigation by virtual prototypes

Prokop¹,

Kučera²,

Řehák³

2018

Vib. proced.

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Abstract. This paper deals with application of virtual prototype to the heavy-duty vehicles gearbox concept. Used methodology was developed and validated on the single stage gearbox concept. Afterwards the virtual prototype was applied to complex gearbox and extended for gear shift. Gear shift has a significant influence on comfort of vehicle and also for its lifetime. The gear shift process has to be fast and smooth as much as possible, which is very difficult. This paper deals with using virtual prototype to see the effect of different gear shift process on the vibration of gearbox. The validation by the experimental approach of gearshift has not been performed yet.

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Section: Methodsmentioning

confidence: 99%

Heavy-duty transmission gear shift investigation by virtual prototypes

Prokop¹,

Kučera²,

Řehák³

2018

Vib. proced.

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show abstract

“…The proposed method was successfully implemented on a simulated signal and real test rig of a Yahama motorcycle gearbox. (Loutas et al, 2009) reported on the condition monitoring of a lab-scale, single stage, gearbox with cracked gears using different non-destructive inspection methodologies and the processing of the acquired waveforms with advanced signal processing techniques is the aim of the present work. Acoustic emission (AE) and vibration measurements were utilized for this purpose.…”

Section: Gearboxesmentioning

confidence: 99%

Utilising the Wavelet Transform in Condition-Based Maintenance: A Review with Applications

Λούτας¹,

Kostopoulos²

2012

Advances in Wavelet Theory and Their Applications in Engineering, Physics and Technology

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“…As AE mainly detects high-frequency elastic waves, it is not affected by structural resonances and typical mechanical background noise (under 20 kHz). Finally, AE was proved superior over vibration data on early detection of small defects in gears (Wang, et al, 2009;Loutas, et al, 2009) …”

Section: Generalmentioning

confidence: 99%

Robust Prognostics Concept for Gearbox with Artificially Induced Gear Crack Utilizing Acoustic Emission

Abouel-Seoud¹,

Elmorsy²,

Dyab³

2011

EER

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Prognostic is a rapidly developing field and seeks to build on current diagnostic equipment capabilities for predicting the system state in advance. In machine condition prognostics, the current and past observations are used to predict the upcoming states of the machine. Signal-de-noising and extraction of the weak acoustic signature are crucial to gearbox prognostics since the inherent deficiency of the measuring mechanism often introduces a great amount of noise to the signal. In addition, the signature of a defective gearbox is spread across a wide frequency band and hence can easily become masked by noise and low frequency effects. As a result, robust concepts are needed to provide more evident information for gearbox performance assessment and prognostics. This paper introduces enhanced and robust prognostic concepts for gear tooth based on an optimal wavelet filter method for fault identification and a statistical method for performance degradation assessment. The experimental results demonstrate that the gear tooth defect can be detected and evaluated at an early stage of development when both the optimal wavelet filter and statistical analysis technique are used.

show abstract

Condition monitoring of a single-stage gearbox with artificially induced gear cracks utilizing on-line vibration and acoustic emission measurements

Cited by 125 publications

References 14 publications

Heavy-duty transmission gear shift investigation by virtual prototypes

Heavy-duty transmission gear shift investigation by virtual prototypes

Utilising the Wavelet Transform in Condition-Based Maintenance: A Review with Applications

Robust Prognostics Concept for Gearbox with Artificially Induced Gear Crack Utilizing Acoustic Emission

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