Degradation Modeling and Remaining Useful Life Prediction of Aircraft Engines Using Ensemble Learning

A Publication, Prognostics CoE Publications - 6 years, 4 months ago

Shared By: Kai Goebel

Degradation modeling and prediction of remaining useful life (RUL) is crucial to prognostics and health management of aircraft engines. While model-based methods have been introduced ...

Computational Architecture for Autonomous Decision-Making in Unmanned Aerial Vehicles

A Publication, Prognostics CoE Publications - 6 years, 4 months ago

Shared By: Kai Goebel

This paper presents a computational architecture to facilitate autonomous decision-making under uncertainty for safe operation of drone-like vehicles. The proposed framework is based on identifying ...

Resilient System Design Using Cost-Risk Analysis With Functional Models

A Publication, Prognostics CoE Publications - 6 years, 4 months ago

Shared By: Kai Goebel

This paper presents a framework to compare the resiliency of different designs during the conceptual design, when information about implementation details is unavailable. We apply ...

Model Validation in The Early Phase of Designing Complex Engineered Systems

A Publication, Prognostics CoE Publications - 6 years, 4 months ago

Shared By: Kai Goebel

In design process of a complex engineered system, studying the behavior of the system prior to manufacturing plays a key role to reduce cost of ...

Optimizing Function-Based Fault Propagation Model Resilience Using Expected Cost Scoring

A Publication, Prognostics CoE Publications - 6 years, 4 months ago

Shared By: Kai Goebel

Complex engineered systems are often associated with risk due to high failure consequences, high complexity, and large investments. As a result, it is desirable for ...

In-Time Safety Assurance Systems for Emerging Autonomous Flight Operations

A Publication, Prognostics CoE Publications - 6 years, 4 months ago

Shared By: Kai Goebel

As aviation adopts new operational paradigms, new vehicle types, and new technologies to broaden airspace capability and efficiency, maintaining a safe system will require recognition ...

Conceptual design of cogeneration plants under a resilient design perspective: Resilience metrics and case study

A Publication, Prognostics CoE Publications - 7 years, 1 month ago

Shared By: Kai Goebel

The conceptual design phase is the first step in the design process of an engineering system. Most engineering systems, including cogeneration plants, may and likely ...

Ensemble of Optimized Echo State Networks for Remaining Useful Life Prediction

A Publication, Prognostics CoE Publications - 7 years, 3 months ago

Shared By: Kai Goebel

The use of Echo State Networks (ESNs) for the prediction of the Remaining Useful Life (RUL) of industrial components, i.e. the time left before the ...

Bayesian model selection and parameter estimation for fatigue damage progression models in composites

A Publication, Prognostics CoE Publications - 8 years, 9 months ago

Shared By: Kai Goebel

A Bayesian approach is presented for selecting the most probable model class among a set of damage mechanics models for fatigue damage progression in composites. ...

An Energy-based Prognostic Framework to Predict Evolution of Damage

A Publication, Prognostics CoE Publications - 8 years, 10 months ago

Shared By: Kai Goebel

Real-time measurements of the structural performance are now possible through state-of-the-art structural health monitoring (SHM) techniques, and a large amount of response data can be ...

Identifying Contributing Factors of Occupant Thermal Discomfort in a Smart Building

A Publication, Sustainability Base - 9 years, 1 month ago

Shared By: RODNEY MARTIN

Modeling occupant behavior in smart buildings to reduce energy usage in a more accurate fashion has garnered much recent attention in the literature. Predicting occupant ...

Scalable Causal Learning for Predicting Adverse Events in Smart Buildings

A Publication, Sustainability Base - 9 years, 1 month ago

Shared By: RODNEY MARTIN

Emerging smart buildings, such as the NASA Sustainability Base (SB), have a broad range of energy-related systems, including systems for heating and cooling. While the ...

A Recursive Receding Horizon Planning for Unmanned Vehicles

A Publication, Prognostics CoE Publications - 9 years, 2 months ago

Shared By: Kai Goebel

This paper proposes a recursive receding horizon path planning algorithm for unmanned vehicles in nonuniform environments. In the proposed algorithm, the map is described by ...

In-situ fatigue life prognosis for composite laminates based on stiffness degradation

A Publication, Prognostics CoE Publications - 9 years, 2 months ago

Shared By: Kai Goebel

In this paper, a real-time composite fatigue life prognosis framework is proposed. The proposed methodology combines Bayesian inference, piezoelectric sensor measurements, and a mechanical stiffness ...