A Discussion on Uncertainty Representation and Interpretation in Model-based Prognostics Algorithms based on Kalman Filter ...

A Publication, Prognostics CoE Publications - 11 years, 11 months ago

Shared By: Miryam Strautkalns

This article presented a discussion on uncertainty representation and management for model-based prog- nostics methodologies based on the Bayesian tracking framework and specifically for a ...

Using Markov Models of Fault Growth Physics and Environmental Stresses to Optimize Control Actions

A Publication, Prognostics CoE Publications - 11 years, 11 months ago

Shared By: Miryam Strautkalns

A contrived example of a dice throwing game was considered in order to provide some insight into the general problem developing prognostics-based control routines that ...

Exploration of Risks in Autonomous Decision-Making Applied to Aeronautics

A Publication, Prognostics CoE Publications - 11 years, 11 months ago

Shared By: Miryam Strautkalns

Prior research into metrics and design for autonomy were presented. At this time, the prospect of adding significant autonomous decision-making on a piloted aircraft is ...

Accelerated Aging Experiments for Capacitor Health Monitoring and Prognostics

A Publication, Prognostics CoE Publications - 11 years, 11 months ago

Shared By: Miryam Strautkalns

This paper discusses experimental setups for health monitoring and prognostics of electrolytic capacitors under nominal operation and accelerated aging conditions. Electrolytic capacitors have higher failure ...

Prognostics of Power Electronics, methods and validation testbeds

A Publication, Prognostics CoE Publications - 11 years, 11 months ago

Shared By: Miryam Strautkalns

An overview of the current results of prognostics for DC- DC power converters is presented, focusing on the output filter capacitor component. The electrolytic capacitor ...

Integrated fatigue damage diagnosis and prognosis under uncertainties

A Publication, Prognostics CoE Publications - 11 years, 11 months ago

Shared By: Miryam Strautkalns

An integrated fatigue damage diagnosis and prognosis framework is proposed in this paper. The proposed methodology integrates a Lamb wave-based damage detection technique and a ...

Bayesian Framework Approach for Prognostic Studies in Electrolytic Capacitor under Thermal Overstress Conditions

A Publication, Prognostics CoE Publications - 11 years, 11 months ago

Shared By: Miryam Strautkalns

Electrolytic capacitors are used in several applications rang- ing from power supplies for safety critical avionics equipment to power drivers for electro-mechanical actuators. Past expe- ...

An Efficient Deterministic Approach to Model-based Prediction Uncertainty

A Publication, Prognostics CoE Publications - 11 years, 11 months ago

Shared By: Miryam Strautkalns

Prognostics deals with the prediction of the end of life (EOL) of a system. EOL is a random variable, due to the presence of process ...

Markov Modeling of Component Fault Growth Over A Derived Domain of Feasible Output Control Effort ...

A Publication, Prognostics CoE Publications - 11 years, 11 months ago

Shared By: Miryam Strautkalns

This paper introduces a novel Markov process formulation of stochastic fault growth modeling, in order to facilitate the development and analysis of prognostics-based control adap- ...

Assessment of Accrued Damage and Remaining Useful Life in Leadfree Electronics Subjected to Multiple Thermal ...

A Publication, Prognostics CoE Publications - 11 years, 11 months ago

Shared By: Miryam Strautkalns

A method has been developed for prognostication of accrued prior damage in electronics subjected to overlapping sequential environments of thermal aging and thermal cycling. The ...

A knowledge-based system approach for sensor fault modeling, detection and mitigation

A Publication, Prognostics CoE Publications - 11 years, 10 months ago

Shared By: Miryam Strautkalns

Sensors are vital components for control and advanced health management techniques. However, sensors continue to be considered the weak link in many engineering applications since ...

RSPF-based Prognosis Framework for Estimation of Remaining Useful Life in Energy Storage Devices

A Publication, Prognostics CoE Publications - 11 years, 11 months ago

Shared By: Miryam Strautkalns

This paper presents a case study where a RSPF-based prognosis framework is applied to estimate the remaining useful life of an energy storage device (Li-Ion ...

Comparison of Two Probabilistic Fatigue Damage Assessment Approaches Using Prognostic Performance Metrics

A Publication, Prognostics CoE Publications - 11 years, 11 months ago

Shared By: Miryam Strautkalns

A general framework for probabilistic prognosis using maximum entropy approach, MRE, is proposed in this paper to include all available information and uncertainties for RUL ...

Comparison of Prognostic Algorithms for Estimating Remaining Useful Life of Batteries

A Publication, Prognostics CoE Publications - 11 years, 11 months ago

Shared By: Miryam Strautkalns

We were interested here in particular in conditions where un-modeled effects are present as manifested by the different degradation curve at 45°C. Although all algorithms ...