Found 34 datasets matching "Fault Diagnosis".
-
This dataset is for the fault diagnosis of a gear crack in a two-stage gearbox using vibration signal processing techniques and recorded by using SpectraQuest's Gearbox Fault Diagnostics...
Search relevance: 219.76 | Views last month: 27 -
Health management systems that more accurately and quickly diagnose faults that may occur in different technical systems on-board a vehicle will play a key role in the success of future NASA...
Search relevance: 157.13 | Views last month: 0 -
The Drilling Automation for Mars Environment (DAME) project, led by NASA Ames Research Center, is aimed at developing a lightweight, low-power drill prototype that can be mounted on a Mars lander...
Search relevance: 151.68 | Views last month: 0 -
Work by Purdue and NIST has shown that different system types behave differently when exposed to the same type of fault at the same intensity; therefore, a better understanding of fault effects on...
Search relevance: 148.40 | Views last month: 1 -
Electrical power systems play a critical role in spacecraft and aircraft. This paper discusses our development of a diagnostic capability for an electrical power system testbed, ADAPT, using...
Search relevance: 106.38 | Views last month: 3 -
Diagnosis and prognosis are necessary tasks for system re- configuration and fault-adaptive control in complex systems. Diagnosis consists of detection, isolation and identification of faults,...
Search relevance: 75.76 | Views last month: 0 -
Diagnosis and prognosis are necessary tasks for system reconfiguration and fault-adaptive control in complex systems. Diagnosis consists of detec- tion, isolation and identification of faults,...
Search relevance: 74.46 | Views last month: 0 -
We describe two model-based diagnosis algo- rithms entered into the Third International Diag- nostic Competition. We focus on the first diag- nostic problem of the industrial track of the com-...
Search relevance: 74.33 | Views last month: 1 -
Fault diagnosis is key to ensuring system safety through fault-adaptive control. This task is diffcult in hybrid systems with combined continuous and discrete behaviors because mode changes make...
Search relevance: 72.92 | Views last month: 0 -
Model-based diagnosis enables efficient and safe operation of engineered systems. In this paper, we describe two algorithms based on a qualitative event-based fault isolation framework augmented...
Search relevance: 71.60 | Views last month: 0 -
Complex engineering systems require efficient on-line fault diagnosis methodologies to improve safety and reduce maintenance costs. Traditionally, diagnosis approaches are centralized, but these...
Search relevance: 68.32 | Views last month: 0 -
This paper presents a distributed Bayesian fault diagnosis scheme for physical systems. Our diagnoser design is based on a procedure for factoring the global system bond graph (BG) into a set of...
Search relevance: 65.58 | Views last month: 0 -
Multiple fault diagnosis is a difficult problem for dynamic systems. Due to fault masking, compensation, and relative time of fault occurrence, multiple faults can manifest in many different ways...
Search relevance: 63.70 | Views last month: 0 -
Multiple fault diagnosis is a difficult problem for dynamic systems. Due to fault masking, compensation, and relative time of fault occurrence, multiple faults can manifest in many different ways...
Search relevance: 63.23 | Views last month: 0 -
Reliable systems health management is an important research area of NASA. A health management system that can accurately and quickly diagnose faults in various on-board systems of a vehicle will...
Search relevance: 62.82 | Views last month: 0 -
A water recycling system (WRS) deployed at NASA Ames Research Center’s Sustainability Base (an energy efficient office building that integrates some novel technologies developed for space...
Search relevance: 61.75 | Views last month: 1 -
A variety of rule-based, model-based and datadriven techniques have been proposed for detection and isolation of faults in physical systems. However, there have been few efforts to...
Search relevance: 60.64 | Views last month: 0 -
Complex engineering systems require efficient fault diagnosis methodologies, but centralized ap- proaches do not scale well, and this motivates the development of distributed solutions. This work...
Search relevance: 60.17 | Views last month: 1 -
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...
Search relevance: 55.76 | Views last month: 0 -
We present the third implementation of a framework created jointly by NASA Ames Research Center, Palo Alto Research Center, and Delft University of Technology to compare and evaluate diagnosis...
Search relevance: 54.72 | Views last month: 0
