Investigating lubrication properties using pulse-echo ultrasound technique

• Main Authors: Imad F., Nagi F., Ahmed S.K.
• Other Authors: 55645983700
• Format: Conference paper
• Published: IEEE Computer Society 2023
• Subjects: condition; Grease; pulse-echo; Ultrasound; wavelet; Control systems; Electric circuit breakers; Fuzzy inference; Lubricants; Lubricating greases; Signal processing; Testing; Ultrasonic testing; Ultrasonics; Fuzzy inference systems; Lubrication property; Mechanical components; Pulse echo ultrasound; Pulse echoes; Ultrasonic testing method; Lubrication

This paper presents a technique that utilizes ultrasonic puls-echo method to determine insufficient lubrication in static mechanical components and assemblies. Due to prolong static in-operation of such systems as spring actuated circuit breakers (CB) the lubricants/grease in the actuation mechanism dries up resulting in sluggish response. Since these systems remain static they don't emit any acoustic signals. Therefore active pulse-echo ultrasonic testing method is proposed to determine the lubricant condition. In the proposed method wavelet analysis is used to de-noise the signal and extract data about lubricant condition. The extracted features from different samples is be used to develop a fuzzy inference system to define the lubricant condition. � 2012 IEEE.