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Lamb Wave-Minimum Sampling Variance Particle Filter-Based Fatigue Crack Prognosis
Fatigue cracks are one of the common failure types of key aircraft components, and they are the focus of prognostics and health management (PHM) systems. Monitoring and prediction of fatigue cracks show great application potential and economic benefit in shortening aircraft downtime, prolonging service life, and enhancing maintenance. However, the fatigue crack growth process is a non-linear non-Gaussian dynamic stochastic process, which involves a variety of uncertainties. Actual crackdoi:10.3390/s19051070 fatcat:4vmypgavzzfcnkqke5fzbmhnri