See All Resources (861)
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Identifying Contributing Factors of Occupant Thermal Discomfort in a Smart Building
A Publication, Sustainability Base - 8 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 ...
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Scalable Causal Learning for Predicting Adverse Events in Smart Buildings
A Publication, Sustainability Base - 8 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 ...
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Prognostic Techniques for Capacitor Degradation and Health Monitoring
A Publication, Chetan Kulkarni's Collection - 8 years, 1 month ago
Shared By: Chetan Kulkarni
This paper discusses our initial efforts in constructing physics of failure models for electrolytic capacitors subjected to electrical stressors in DC-DC power converters. Electrolytic capacitors ...
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Integrated Diagnostic/Prognostic Experimental Setup for Capacitor Degradation and Health Monitoring
A Publication, Chetan Kulkarni's Collection - 8 years, 1 month ago
Shared By: Chetan Kulkarni
This paper proposes the experiments and setups for studying diagnosis and prognosis of electrolytic capacitors in DC-DC power converters. Electrolytic capacitors and power MOSFET’s have ...
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A Publication, Chetan Kulkarni's Collection - 8 years, 1 month ago
Shared By: Chetan Kulkarni
Studying and analyzing the ageing mechanisms of electronic components avionics in systems such as the GPS and INAV are of critical importance. In DC-DC power ...
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Implementation of Prognostic Methodologies to Cryogenic Propellant Loading Test-bed
A Publication, Chetan Kulkarni's Collection - 8 years, 1 month ago
Shared By: Chetan Kulkarni
Prognostics methodologies determine the health state of a system and predict the end of life and remaining useful life. This information enables operators to take ...
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A Publication, Chetan Kulkarni's Collection - 8 years, 1 month ago
Shared By: Chetan Kulkarni
This paper proposes a physics based degradation modeling and prognostics approach for electrolytic capacitors. Electrolytic capacitors are critical components in electronics systems in aeronautics and ...
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A Testbed for Implementing Prognostic Methodologies on Cryogenic Propellant Loading Systems
A Publication, Chetan Kulkarni's Collection - 8 years, 1 month ago
Shared By: Chetan Kulkarni
Prognostics technologies determine the health state of a system and predict its remaining useful life. With this information, operators are able to make maintenance-related decisions, ...
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Application of Model Based Prognostics to Pneumatic Valves in a Cryogenic Propellant Loading Testbed
A Publication, Chetan Kulkarni's Collection - 8 years, 1 month ago
Shared By: Chetan Kulkarni
Pneumatic-actuated valves are critical components in many applications, including cryogenic propellant loading for space operations. For these components, failures need to be predicted so that ...
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Data from Sustainability Base Characterizing Hot Water Pump Differential Pressure Spikes for ACCEPT
A Dataset, Sustainability Base - 8 years, 2 months ago
Shared By: RODNEY MARTIN
During the heating season in Sustainability Base, a critical alarm associated with a hot water pump circulating heating water for the radiative system which exchanges ...
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A Recursive Receding Horizon Planning for Unmanned Vehicles
A Publication, Prognostics CoE Publications - 8 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 ...
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In-situ fatigue life prognosis for composite laminates based on stiffness degradation
A Publication, Prognostics CoE Publications - 8 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 ...
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Condition-based prediction of time-dependent reliability in composites
A Publication, Prognostics CoE Publications - 8 years, 2 months ago
Shared By: Kai Goebel
This paper presents a reliability-based prediction methodology to obtain the remaining useful life of composite materials subjected to fatigue degradation. Degradation phenomena such as stiffness ...
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Prognostics Design Solutions in Structural Health Monitoring Systems
A Publication, Prognostics CoE Publications - 8 years, 2 months ago
Shared By: Kai Goebel
The chapter describes the application of prognostic techniques to the domain of structural health and demonstrates the efficacy of the methods using fatigue data from ...
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Advances in Uncertainty Representation and Management for Particle Filtering Applied to Prognostics
A Publication, Prognostics CoE Publications - 8 years, 2 months ago
Shared By: Kai Goebel
Particle filters (PF) have been established as the de facto state of the art in failure prognosis. They combine advantages of the rigors of Bayesian ...