89 citations · 101 across the 9 of their papers we have counts for
9 papers
A Unified Statistical Framework for Multicopter Propeller Damage Diagnosis Based on Functionally Pooled Models and Bayesian Quantification: Experimental Flight Test Assessment
Shinan Huang, Jingxi Zhu, Fotis Kopsaftopoulos
In this work, a stochastic time series-based framework is introduced for multicopter propeller damage diagnosis using functionally pooled autoregressive (FP-AR) models. The framewo…
Data-Driven Structural State Estimation via Multi-Fidelity Gaussian Process Models
Yiming Fan, Fotis Kopsaftopoulos
Guided wave-based techniques have been used extensively in Structural Health Monitoring (SHM). Models using guided waves can provide information from both time and frequency domain…
Guided Wave-Based Structural Awareness Under Varying Operating States via Manifold Representations
Yiming Fan, Dimitris G Giovanis, Fotis Kopsaftopoulos
Guided wave-based structural health monitoring (SHM) remains a powerful strategy for identifying early-stage defects and safeguarding vital aerospace structures. Yet, its practical…
Data-driven Framework for Forward and Inverse Problems in Guided Waves-Based Structural Health Monitoring Under Varying Environmental and Operating Conditions
Yiming Fan, Fotis Kopsaftopoulos
Recently, guided waves-based techniques have garnered increased attention from researchers in the field of Structural Health Monitoring (SHM) for damage detection and quantificatio…
Stochastic Identification-based Active Sensing Acousto-Ultrasound SHM Using Stationary Time Series Models
Shabbir Ahmed, Fotis Kopsaftopoulos
In this work, a probabilistic damage detection and identification scheme using stochastic time series models in the context of acousto-ultrasound guided wave-based SHM is proposed,…
Time-varying Identification of Guided Wave Propagation under Varying Temperature via Non-Stationary Time Series Models
Shabbir Ahmed, Fotis Kopsaftopoulos
Modern-day civil, mechanical, and aeronautical structures are transitioning towards a continuous, online, and automated maintenance paradigm in order to ensure increased safety and…
Gaussian Process Regression for Active Sensing Probabilistic Structural Health Monitoring: Experimental Assessment Across Multiple Damage and Loading Scenarios
Ahmad Amer, Fotis Kopsaftopoulos
In the near future, Structural Health Monitoring (SHM) technologies will be capable of overcoming the drawbacks in the current maintenance and life-cycle management paradigms, name…
Statistical guided-waves-based SHM via stochastic non-parametric time series models
Ahmad Amer, Fotis Kopsaftopoulos
Damage detection in active-sensing, guided-waves-based Structural Health Monitoring (SHM) has evolved through multiple eras of development during the past decades. Nevertheless, th…
A Stochastic Global Identification Framework for Aerospace Vehicles Operating Under Varying Flight States
Fotis Kopsaftopoulos, Raphael Nardari, Yu-Hung Li +1
In this work, a novel data-based stochastic global identification framework is introduced for air vehicles operating under varying flight states and uncertainty. In this context, t…