Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Allen J. Bronowicki"'
Autor:
Allen J. Bronowicki, Andrew Jankevics, Allan Wirth, C. Bill Chen, David Rohweller, Justin J. Rey, Franklin M. Landers
Publikováno v:
SPIE Proceedings.
+LJKUHVROXWLRQLPDJLQJIURPVSDFHUHTXLUHVYHU\ODUJHDSHUWXUHV VXFKDV1$6$¶VFXUUHQW mission the James Webb Space Telescope (JWST) which uses a deployable 6.5m segmented primary. Future missions requiring even larger apertures (>>10m) will present a great c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9225e3059f7baafa5f0d7c07e244f691
https://doi.org/10.1117/12.2057182
https://doi.org/10.1117/12.2057182
Publikováno v:
Smart Materials and Structures. 8:740-752
The paper describes techniques for designing and implementing active damping systems for large optical support structures. Each step in the design process is illustrated with results from the Advanced Composites with Embedded Sensors and Actuators (A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d816d6fa94efa50033b4fddc163c8bd2
https://doi.org/10.1088/0964-1726/8/6/304
https://doi.org/10.1088/0964-1726/8/6/304
Publikováno v:
Smart Materials and Structures. 5:129-139
TRW is developing smart structures technology for vibration control in space and automotive applications. Performance verification of composite structures with piezoceramic sensors and actuators in severe mechanical and thermal environments is a key
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d4442ccb80d9d4af942a8dce953909f
https://doi.org/10.1088/0964-1726/5/2/003
https://doi.org/10.1088/0964-1726/5/2/003
Autor:
James W. Alexander, Allen J. Bronowicki, David O'Connor, Dwight Moody, Paul Brugarolas, Pawel Orzechowski, Connie Spittler, Reem Hejal, Richard Patrick, Vanessa Camelo, Phillip Vallone, C. Lillie, Jason Elias, Robert Egerman, John T. Trauger
Publikováno v:
SPIE Proceedings.
ACCESS (Actively-Corrected Coronograph for Exoplanet System Studies) was one of four medium-class exoplanet concepts selected for the NASA Astrophysics Strategic Mission Concept Study (ASMCS) program in 2008/2009. The ACCESS study evaluated four majo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5038f4c96ccfaec86f1f9f63ad6f00af
https://doi.org/10.1117/12.856518
https://doi.org/10.1117/12.856518
Autor:
David N. Spergel, Gary Matthews, M. Ealey, Dwight Moody, James W. Alexander, John Krist, Jason Elias, Stuart B. Shaklan, Robert Egerman, Thomas R. Price, Eugene Serabyn, Yves Conturie, Constance Spittler, Curtis Henry, Phillip Vallone, Virgil Mireles, Ruslan Belikov, Olivia R. Dawson, Geoffrey W. Marcy, Reem Hejal, Paul Brugarolas, Charles F. Lillie, Ronald S. Polidan, Nick Saldivar, Perry Voyer, Robert A. Brown, John T. Trauger, Jean Schneider, Karl R. Stapelfeldt, Wesley A. Traub, Peggy Park, Bruce E. Woodgate, David W Lee, Robert J. Vanderbei, Dimitri Mawet, Jeremy Kasdin, Robert O. Gappinger, Laurent Pueyo, Allen J. Bronowicki, Olivier Guyon
ACCESS is one of four medium-class mission concepts selected for study in 2008-9 by NASA's Astrophysics Strategic Mission Concepts Study program. ACCESS evaluates a space observatory designed for extreme high-contrast imaging and spectroscopy of exop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0fb7979f0b79c6fc7924906cf1146d6
https://resolver.caltech.edu/CaltechAUTHORS:20150520-102639514
https://resolver.caltech.edu/CaltechAUTHORS:20150520-102639514
Publikováno v:
50th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference.
Current state-of-the-art space exploration missions have stringent wavefront errors and pointing requirements in the few nanometers and miliarcsecond range. Achieving this level of precision is not an easy feat. Optical telescope designs often employ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e8a529bc6b1e6f8a9f9fb6d8dc9a693
https://doi.org/10.2514/6.2009-2637
https://doi.org/10.2514/6.2009-2637
Publikováno v:
50th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference.
Dam ping is a n important consideration in state -of -the -art space missions, as it is often us ed to mitigate launch loads and low -amplitude spacecraft disturbances . Although damping treatments are very effective, their implementation may be limi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55454a37f1f570ea14e67d1b4a812feb
https://doi.org/10.2514/6.2009-2522
https://doi.org/10.2514/6.2009-2522
Publikováno v:
48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference.
The aim of this research is to develop analytical techniques that are supported by experimental data to predict the behavior of a passive magnetic damper in a cryogenic environment. The applications are far reaching--projects with high precision poin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::182c253edcfc83ed311fef808ab4142c
https://doi.org/10.2514/6.2007-2154
https://doi.org/10.2514/6.2007-2154
Autor:
Allen J. Bronowicki
Publikováno v:
48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference.
A custom finite element is derived to treat the decay of shear stresses through a multi constrained layer viscoela stic damping treatment. The methodology is applied to single and dual damping layers, but may be extended to an arbitrary number of suc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5ffe1b0a103fa665399ff95126dc01b
https://doi.org/10.2514/6.2007-2088
https://doi.org/10.2514/6.2007-2088
Autor:
Stepan Simonian, Sarah Brennan, Allen J. Bronowicki, Patrick T. Ryan, William Hurst, Richard McMonagle, Robert Sweeney
Publikováno v:
47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference 14th AIAA/ASME/AHS Adaptive Structures Conference 7th.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4f73c6c331814f154fd7084fe8ed65a
https://doi.org/10.2514/6.2006-1834
https://doi.org/10.2514/6.2006-1834