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The monitoring of a cutting tool is needed for the prediction of impending faults and estimating its Remaining Useful Life (RUL). Implementing a robust Prognostic and Health Management (PHM) system for a high speed milling CNC cutter remains a challenge for various industries to reach improved quality, reduced downtime, increased system safety and lower production costs. The purpose of the present...
The estimation of the backscattered echo was performed using the Maximum Likelihood Estimation (MLE). The backscattered ultrasonic echo is modeled as a nonlinear function of a set of parameters using the Gaussian echo model corrupted with an additive noise. Because of the white Gaussian noise (WGN) assumption, the estimation problem reduces to a least squares estimation. Thus, the nonlinear least...
Abstract: Non‐destructive evaluation of applied loadings level in mechanical components and structures constitutes a versatile tool to predict the behaviour of their materials in engineering industries and check services. Ultrasonic non‐destructive techniques stand advantageously to allow predictions and diagnosis where other measurement methods are difficult or not possible. For analysing the effects...
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