Prognostic Health-Management System Development for Electromechanical Actuators

A Publication, FLEA - 8 years, 9 months ago

Shared By: EDWARD BALABAN

Electro-mechanical actuators (EMAs) have been gaining increased acceptance as safety-critical actuation devices in the next generation of aircraft and spacecraft. The aerospace manufacturers are not ...

Automated Contingency Management for Propulsion Systems

A Publication, Prognostics CoE Publications - 10 years, 3 months ago

Shared By: Abhinav Saxena

Increasing demand for improved reliability and survivability of mission-critical systems is driving the development of health monitoring and Automated Contingency Management (ACM) systems. An ACM ...

A multi-feature integration method for fatigue crack detection and crack length estimation in riveted lap ...

A Publication, Prognostics CoE Publications - 10 years, 4 months ago

Shared By: Abhinav Saxena

This paper presents an experimental study of damage detection and quantification in riveted lap joints. Embedded lead zirconate titanate piezoelectric (PZT) ceramic wafer-type sensors are ...

Requirements Flowdown for Prognostics and Health Management

A Publication, Prognostics CoE Publications - 10 years, 9 months ago

Shared By: Miryam Strautkalns

Prognostics and Health Management (PHM) principles have considerable promise to change the game of lifecycle cost of engineering systems at high safety levels by providing ...

On Applying the Prognostic Performance Metrics

A Publication, Prognostics CoE Publications - 10 years, 9 months ago

Shared By: Miryam Strautkalns

Prognostics performance evaluation has gained significant attention in the past few years. *As prognostics technology matures and more sophisticated methods for prognostic uncertainty management are ...

A Survey of Metrics for Performance Evaluation of Prognostics

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

Shared By: Miryam Strautkalns

Prognostics is an emerging concept in condition basedmaintenance(CBM)ofcriticalsystems.Alongwith developing the fundamentals of being able to confidently predict Remaining Useful Life (RUL), the technology calls for ...

Prognostics of Power MOSFETs under Thermal Stress Accelerated Aging using Data-Driven and Model-Based Methodologies

A Publication, Prognostics CoE Publications - 10 years, 3 months ago

Shared By: Miryam Strautkalns

An approach for predicting remaining useful life of power MOSFETs (metal oxide field effect transistor) devices has been developed. Power MOSFETs are semiconductor switching devices ...

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

A Publication, Prognostics CoE Publications - 10 years, 12 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 ...

Model-based Prognostics with Fixed-lag Particle Filters

A Publication, Prognostics CoE Publications - 12 years, 2 months ago

Shared By: Matthew Daigle

Model-based prognostics exploits domain knowledge of the system, its components, and how they fail by casting the underlying physical phenomena in a physics-based model that ...

Model-based Prognostics under Limited Sensing

A Publication, Prognostics CoE Publications - 12 years, 2 months ago

Shared By: Matthew Daigle

Prognostics is crucial to providing reliable condition-based maintenance decisions. To obtain accurate predictions of component life, a variety of sensors are often needed. However, it ...

Tackling Verification and Validation for Prognostics

A Publication, Prognostics CoE Publications - 12 years, 2 months ago

Shared By: Matthew Daigle

Verification and validation (V&V;) has been identified as a critical phase in fielding systems with Integrated Systems Health Management (ISHM) solutions to ensure that the ...

Improving Computational Efficiency of Prediction in Model-based Prognostics Using the Unscented Transform

A Publication, Prognostics CoE Publications - 12 years, 2 months ago

Shared By: Matthew Daigle

Model-based prognostics captures system knowledge in the form of physics-based models of components, and how they fail, in order to obtain accurate predictions of end ...

Prognostics for Ground Support Systems: Case Study on Pneumatic Valves

A Publication, Prognostics CoE Publications - 12 years, 2 months ago

Shared By: Matthew Daigle

Prognostics technologies determine the health (or damage) state of a component or subsystem, and make end of life (EOL) and remaining useful life (RUL) predictions. ...

A Model-based Prognostics Approach Applied to Pneumatic Valves

A Publication, Prognostics CoE Publications - 12 years, 2 months ago

Shared By: Matthew Daigle

Within the area of systems health management, the task of prognostics centers on predicting when components will fail. Model-based prognostics exploits domain knowledge of the ...