Zobrazeno 1 - 10
of 26
pro vyhledávání: '"W. Lance Richards"'
Publikováno v:
Aerospace, Vol 3, Iss 3, p 18 (2016)
Technological advances have enabled the development of a number of optical fiber sensing methods over the last few years. The most prevalent optical technique involves the use of fiber Bragg grating (FBG) sensors. These small, lightweight sensors hav
Externí odkaz:
https://doaj.org/article/e6da683ab0454efd98a401cb74ce3947
Autor:
Eric L. Christiansen, Francisco Pena, Anthony Piazza, Allen R. Parker, W. Lance Richards, Steven L. Rickman
Publikováno v:
Procedia Engineering. 188:233-240
Spacecraft in low earth orbit (LEO) experience a variety of hazards including exposure to micrometeoroids and orbital debris (MMOD). Average impact speeds for orbital debris on spacecraft in LEO are 9 to 10 km/s, and 20 km/s for micrometeoroids. Due
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8973de31809146a9c4ef5ad1388bf756
https://doi.org/10.1016/j.proeng.2017.04.479
https://doi.org/10.1016/j.proeng.2017.04.479
Autor:
Allen R. Parker, Francisco Pena, W. Lance Richards, Nathaniel W. Gardner, Michelle T. Rudd, Anthony Piazza, Mark W. Hilburger, Marc R. Schultz
Publikováno v:
2018 AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference.
The National Aeronautics and Space Administration (NASA) Engineering and Safety Center Shell Buckling Knockdown Factor Project is a multicenter project tasked with developing new analysis-based shell buckling design guidelines and design factors (i.e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aff88395e08e2e5674ce0c28ff037d82
https://doi.org/10.2514/6.2018-1695
https://doi.org/10.2514/6.2018-1695
Publikováno v:
26th International Conference on Optical Fiber Sensors.
Over the past century aircraft wing design has transformed from the morphing wing used on the Wright Flyer to rigid wings with little to no shape-tailoring abilities. Modern day wings are designed to fly at a single trim condition and optimized to ha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43ec9ff6cd546b2d81aff8ae0ea1c8f0
https://doi.org/10.1364/ofs.2018.wf101
https://doi.org/10.1364/ofs.2018.wf101
Autor:
John A. Bakalyar, Helen Boussalis, Sami F. Masri, Armen Derkevorkian, W. Lance Richards, Jessica Alvarenga
Publikováno v:
AIAA Journal. 51:2231-2240
A new deformation shape-sensing methodology is investigated for the purposes of real-time condition assessment, control, and health monitoring of flexible lightweight aerospace structures. The fiber optic strain sensing technology was recently propos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e936f8797e9c23eb47894143e59418fd
https://doi.org/10.2514/1.j052215
https://doi.org/10.2514/1.j052215
Publikováno v:
Key Engineering Materials. 558:268-280
The thermal protection systems of spacecraft are vulnerable to damage from impacts by foreign objects moving at high velocities. This paper describes a proposed novel structural health monitoring system that will detect, locate and evaluate the damag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5ddac33d8ffb9c9e7470acacae83156
https://doi.org/10.4028/www.scientific.net/kem.558.268
https://doi.org/10.4028/www.scientific.net/kem.558.268
Autor:
Gregory P. Carman, Stefano Trono, Michael C. Emmons, Kotekar P. Mohanchandra, W. Lance Richards, Sunny Karnani
Publikováno v:
International Journal of Optomechatronics. 4:22-33
This study investigates the influence of strain state distribution on the accuracy of embedded optical fiber Bragg gratings (FBGs) used as strain sensors. An optical fiber embedded parallel to adjacent structural fibers in a graphite epoxy quasi-isot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::286212f6f8002073550bf78edbc1273a
https://doi.org/10.1080/15599611003649984
https://doi.org/10.1080/15599611003649984
Publikováno v:
2015 IEEE Avionics and Vehicle Fiber-Optics and Photonics Conference (AVFOP).
An overview of the research and technological development of the fiber-optic sensing system (FOSS) at the National Aeronautics and Space Administration Armstrong Flight Research Center (NASA AFRC) is presented. Theory behind fiber Bragg grating (FBG)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e398e9b14031e386924c37d0d346cc1
https://doi.org/10.1109/avfop.2015.7356646
https://doi.org/10.1109/avfop.2015.7356646
Autor:
Carolina Adamo, Adam Garcia, Sabina Ula, Darrell G. Schlom, Scott M. Strutner, Greg P. Carman, W. Lance Richards, Kang L. Wang
Publikováno v:
Optical Materials Express. 7:468
The magnetorefractive effect is a change in a sample’s reflectivity with applied magentic field. This is caused by the material’s index of refraction’s sensitivity to magnetic fields. However, measurements of the index of refraction as a functi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5dcf5c2f51011b805f099827c45b4e72
https://doi.org/10.1364/ome.7.000468
https://doi.org/10.1364/ome.7.000468
Autor:
Allen R. Parker, W. Lance Richards, Gregory P. Carman, Anthony Piazza, Scott M. Strutner, Frank Pena
Publikováno v:
SPIE Proceedings.
This study reports on signal recovery of optical fiber Bragg gratings embedded in a carbon fiber composite overwrapped pressure vessel's (COPV) structure which have become chirped due to microcracks. COPVs are commonly used for the storage of high pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a5fac2717eaacca8ce2d3ab8f8b5d54
https://doi.org/10.1117/12.2045148
https://doi.org/10.1117/12.2045148