Zobrazeno 1 - 10
of 19
pro vyhledávání: '"James L. Mathieson"'
Publikováno v:
ASME Open Journal of Engineering. 2
While fundamentals of DFMA (design for manufacturing and assembly) are widely accepted and used in the engineering community, many CAD environments lack tools that address manufacturing concerns by providing rapid feedback about costs resulting from
Autor:
Michael P. Sbarra, Apurva Patel, Joshua Ortiz, Akash Patel, Joshua D. Summers, James L. Mathieson
Publikováno v:
Volume 2: 41st Computers and Information in Engineering Conference (CIE).
While fundamentals of DFMA are widely accepted and used in the engineering design community, many CAD environments lack tools that address manufacturing concerns and provide rapid feedback to designers about manufacturing impacts of their design choi
Autor:
Mary L. Comer, Edward J. Delp, James L. Mathieson, Sundip R. Desai, Moses W. Chan, Sriram Baireddy, Richard H. Foster
Publikováno v:
CVPR Workshops
Anomaly detection in telemetry channels is a high priority for spacecraft, especially when considering the harsh environment of space and the magnitude of launch and operation costs. Traditional spacecraft anomaly detection methods are limited in sco
Autor:
Moses W. Chan, Sundip R. Desai, James L. Mathieson, Tianyu Li, Mary L. Comer, Edward J. Delp, Richard H. Foster
Publikováno v:
2020 IEEE Aerospace Conference.
Prediction-based anomaly detection methods for time series have been studied for decades and demonstrated to be useful in many applications. However, many predictors cannot accurately predict values around abrupt changes in time series, which may res
Autor:
Tianyu Li, Richard H. Foster, Moses W. Chan, Edward J. Delp, Sundip R. Desai, Mary L. Comer, James L. Mathieson
Publikováno v:
MILCOM
Anomaly or abnormal behavior detection in downlinked spacecraft telemetry is a key step for determining root cause of subsystem failures. Long Short-Term Memory networks (LSTMs) have been demonstrated to be useful for anomaly detection in time series
Autor:
Joshua D. Summers, James L. Mathieson
Publikováno v:
Concurrent Engineering. 25:108-122
A protocol for tracking the interconnection of design communication elements as a mixed temporal hypergraph network which evolves in real time is presented here. The protocol uses email and limited human reporting data to develop the time-stamped con
Publikováno v:
Research in Engineering Design. 25:139-156
Requirement change propagation, if not managed, may lead to monetary losses or project failure. The a posteriori tracking of requirement dependencies is a well-established practice in project and change management. The identification of these depende
Publikováno v:
International Journal of Computer Integrated Manufacturing. 26:955-967
This paper presents an approach for the development of surrogate models predicting the assembly time of a system based on complexity metrics of the physical system architecture when detailed geometric information is unavailable. A convention for mode
Publikováno v:
Journal of Computing and Information Science in Engineering. 14
Assembly time estimation is traditionally a time-intensive manual process that requires detailed geometric and process information, which is often subjective and qualitative in nature. As a result, assembly time estimation is rarely applied during ea
Autor:
Brian R. Jones, James L. Mathieson, Michael Jacoby, Sidney Hu, Howard Demroff, Paul V. Mammini, Ron Dammann
Publikováno v:
SPIE Proceedings.
The optics train of the Near Infrared Camera (NIRCam) instrument for NASA's James Webb Space Telescope (JWST) includes a pick-off mirror (POM) mounted in the focus and alignment mechanism (FAM). Over the course of the mission, the POM will have a nar