Probabilistic Delamination Diagnosis of Composite Materials Using a Novel Bayesian Imaging Method

A Publication, Abhinav Saxena's Collection - 11 years, 3 months ago

Shared By: Abhinav Saxena

In this paper, a probabilistic delamination location and size detection framework is proposed. The delamination probability image using Lamb wave-based damage detection is constructed using ...

An Energy-Based Prognostic Framework to Predict Fatigue Damage Evolution in Composites

A Publication, Abhinav Saxena's Collection - 11 years, 3 months ago

Shared By: Abhinav Saxena

In this work, a prognostics framework to predict the evolution of damage in fiber-reinforced composites materials under fatigue loads is proposed. The assessment of internal ...

Towards Requirements in Systems Engineering for Aerospace IVHM Design

A Publication, Abhinav Saxena's Collection - 11 years, 3 months ago

Shared By: Abhinav Saxena

Health management (HM) technologies have been employed for safety critical system for decades, but a coherent systematic process to integrate HM into the system design ...

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

A Publication, Prognostics CoE Publications - 11 years, 3 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 ...

Evaluating the Impact of Unrestricted Operation of Unmanned Aircraft Systems in the National Airspace System

A Publication, Abhinav Saxena's Collection - 11 years, 3 months ago

Shared By: Abhinav Saxena

Unmanned aircraft systems (UAS) can be used for scientific, emergency management, and defense missions, among others. The existing federal air regulations, procedures, and technologies do ...

Distilling the Verification Process for Prognostics Algorithms

A Publication, Indranil Roychoudhury's Collection - 11 years, 3 months ago

Shared By: Indranil Roychoudhury

The goal of prognostics and health management (PHM) systems is to ensure system safety, and reduce downtime and maintenance costs. It is important that a ...

Embedding Temporal Constraints for Coordinated Execution in Habitat Automation

A Publication, MARK SCHWABACHER's Collection - 11 years, 3 months ago

Shared By: MARK SCHWABACHER

Future NASA plans call for long-duration deep space missions with human crews. Because of light-time delay and other considerations, increased autonomy will be needed. This ...

Modeling of Activities as Fuzzy Temporal Multivariable Problems

A Publication, Farzad amirjavid's Collection - 11 years, 7 months ago

Shared By: Farzad amirjavid

Smart Home resident may be an Alzheimer patient needing continuous assistance and care giving. Because of forgetfulness, this person may realize activities of daily living ...

Requirements Flowdown for Prognostics and Health Management

A Publication, Prognostics CoE Publications - 11 years, 7 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 ...

Accelerated Aging Experiments for Prognostics of Damage Growth in Composite Materials

A Publication, Prognostics CoE Publications - 11 years, 7 months ago

Shared By: Miryam Strautkalns

Composite structures are gaining importance for use in the aerospace industry. Compared to metallic structures their behavior is less well understood. This lack of understanding ...

An Adaptive Recurrent Neural Network for Remaining Useful Life Prediction of Lithium-ion Batteries

A Publication, Prognostics CoE Publications - 11 years, 7 months ago

Shared By: Miryam Strautkalns

Prognostics is an emerging science of predicting the health condition of a system (or its components) based upon current and previous system states. A reliable ...

Metrics for Offline Evaluation of Prognostic Performance

A Publication, Prognostics CoE Publications - 11 years, 7 months ago

Shared By: Miryam Strautkalns

Prognostic performance evaluation has gained significant attention in the past few years.*Currently, prognostics concepts lack standard definitions and suffer from ambiguous and inconsistent interpretations. This ...

Evaluating Prognostics Performance for Algorithms Incorporating Uncertainty Estimates

A Publication, Prognostics CoE Publications - 11 years, 7 months ago

Shared By: Miryam Strautkalns

Uncertainty Representation and Management (URM) are an integral part of the prognostic system development.1As capabilities of prediction algorithms evolve, research in developing newer and more ...

Requirements Specifications for Prognostics: An Overview

A Publication, Prognostics CoE Publications - 11 years, 7 months ago

Shared By: Miryam Strautkalns

With recent advancements in prognostics methodologies there has been a significant interest in maturing Prognostics and Health Management (PHM) to increase its technology readiness level ...