Axisymmetric free vibration modeling of a functionally graded piezoelectric resonator by a double Legendre polynomial method

Khalfi, Hassna; Naciri, Ismail; Raghib, Rabab; Randrianarivelo, Joli; Yu, Jiangong; Ratolojanahary, Faniry Emilson; Elmaimouni, Lahoucine

doi:10.1007/s00707-023-03766-1

Cited by 4 publications

(1 citation statement)

References 64 publications

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“…When an electric field is applied to a piezoelectric crystal, the piezoelectric effect causes the crystal to vibrate, forming a surface acoustic wave. When the piezoelectric substrate (usually quartz) on the sensor is subjected to external stress changes, the external strain deviation can cause changes in the parameters of the piezoelectric material (Khalfi et al, 2023), further altering the resonant frequency of the resonator.…”

Section: Operation Monitoringmentioning

confidence: 99%

Research and design of an expert diagnosis system for rail vehicle driven by data mechanism models

Li,

Wang,

Xiao

2024

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PurposeThe aim of this work is to research and design an expert diagnosis system for rail vehicle driven by data mechanism models.Design/methodology/approachThe expert diagnosis system utilizes statistical and deep learning methods to model the real-time status and historical data features of rail vehicle. Based on data mechanism models, it predicts the lifespan of key components, evaluates the health status of the vehicle and achieves intelligent monitoring and diagnosis of rail vehicle.FindingsThe actual operation effect of this system shows that it has improved the intelligent level of the rail vehicle monitoring system, which helps operators to monitor the operation of vehicle online, predict potential risks and faults of vehicle and ensure the smooth and safe operation of vehicle.Originality/valueThis system improves the efficiency of rail vehicle operation, scheduling and maintenance through intelligent monitoring and diagnosis of rail vehicle.

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Section: Operation Monitoringmentioning

confidence: 99%