Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Jack Aldrich"'
Autor:
Scott Ploen, Jack Aldrich, David Bayard, Leonard Dorsky, Anup Katake, Edward Konefat, Carl Christian Liebe, Joel Shields
Publikováno v:
2023 IEEE Aerospace Conference.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56fecaba15075b9db16c8f2f6d12e88b
https://doi.org/10.1109/aero55745.2023.10115888
https://doi.org/10.1109/aero55745.2023.10115888
Autor:
Oscar S. Alvarez-Salazar, Daniel R. Herber, Soon-Jo Chung, Jack Aldrich, James T. Allison, Christian M. Chilan, Yashwanth Kumar Nakka
Publikováno v:
AIAA Journal. 55:3180-3195
This work presents a novel spacecraft attitude control architecture using strain-actuated solar arrays that does not require the use of conventional attitude control hardware. A strain-actuated solar array enables attitude slewing maneuvers and preci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dcbdb323bf904c5069288e0f97608b7b
https://doi.org/10.2514/1.j055748
https://doi.org/10.2514/1.j055748
Autor:
Jack Aldrich
Publikováno v:
Journal of Guidance, Control, and Dynamics. 37:1791-1807
Analytic formulas that guarantee a minimum level of disturbance-rejection performance are derived for a class of attitude control problems consisting of linear proportional-derivative quaternion feedback applied to a rigid-body spacecraft plant model
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b74dd26e65621d175de985b3170dd24e
https://doi.org/10.2514/1.g000339
https://doi.org/10.2514/1.g000339
Publikováno v:
ACC
Instrument pointing control systems mounted on spacecraft are inherently bandwidth-limited (due to lightly-damped flexible modes of the spacecraft) compared to the same system mounted to a rigid body (such as the ground). This work is concerned with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c99144a2c763c8a26b52ffab92d0d79
https://doi.org/10.1109/acc.2016.7526844
https://doi.org/10.1109/acc.2016.7526844
Autor:
Christopher M. Jones, Jack Aldrich, Stewart Sherrit, Xiaoqi Bao, Renaud Goullioud, James D. Moore, Chad J. Blodget, John W. Carson
Publikováno v:
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control. 58:820-828
Potential NASA optical missions such as the Space Interferometer Mission require actuators for precision positioning to accuracies of the order of nanometers. Commercially available multilayer piezoelectric stack actuators are being considered for dr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b12e239b35723e49dc4c6f701bceb2cf
https://doi.org/10.1109/tuffc.2011.1874
https://doi.org/10.1109/tuffc.2011.1874
Autor:
Jack Aldrich, Geoffrey Bryden, John Krist, Mark Wyatt, Paul Brugarolas, David Stuchlik, Stephen C. Unwin, James Lanzi, Lewis C. Roberts, John T. Trauger, Karl R. Stapelfeldt, Wesley A. Traub
The Debris Disk Explorer (DDX) is a proposed balloon-borne investigation of debris disks around nearby stars. Debris disks are analogs of the Asteroid Belt (mainly rocky) and Kuiper Belt (mainly icy) in our Solar System. DDX will measure the size, sh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::102330c837e63d45541ad9e02a56c8a8
https://resolver.caltech.edu/CaltechAUTHORS:20180713-112040913
https://resolver.caltech.edu/CaltechAUTHORS:20180713-112040913
Autor:
Mircea Badescu, Jennifer Hasenoehrl, Yoseph Bar-Cohen, Stewart Sherrit, Xiaoqi Bao, Zensheu Chang, Patrick Ostlund, Jack Aldrich
Publikováno v:
SPIE Proceedings.
Increasingly, NASA exploration mission objectives include sample acquisition tasks for in-situ analysis or for potential sample return to Earth. To address the requirements for samplers that could be operated at the conditions of the various bodies i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02be86290c7fcb22960f136ce14980e5
https://doi.org/10.1117/12.2010316
https://doi.org/10.1117/12.2010316
Autor:
Cornelius M. Dubbeldam, Christopher G. Paine, Roger Pittock, Thomas Kitching, Peter J. Pool, Richard S. Ellis, Angus Gallie, Joel Bergé, Jack Aldrich, Alan Heavens, Paul Brugarolas, Ray M. Sharples, Benjamin M. Dobke, David Henry, Andy Taylor, Richard Massey, James J. Wu, Alexandre Refregier, David Lunney, Roger Smith, Alexandra Smith, Carlos S. Frenk, Simon J. Lilly, Michael Seiffert, R. Ali Vanderveld, Kurt Liewer, Eric Jullo, James Lanzi, Paul Clark, Sergio Pellegrino, Jason Rhodes, Adam Amara, Naidu Bezawada, Satoshi Miyazaki, Jeffrey Booth, David L. Morris, David Stuchlik, John A. Peacock, Harry I. Teplitz
Publikováno v:
Astroparticle Physics
Astroparticle Physics, 2012, 38, pp.31--40. ⟨10.1016/j.astropartphys.2012.05.015⟩
Astroparticle Physics, Elsevier, 2012, 38, pp.31--40. ⟨10.1016/j.astropartphys.2012.05.015⟩
Astroparticle Physics, 2012, 38, pp.31--40. ⟨10.1016/j.astropartphys.2012.05.015⟩
Astroparticle Physics, Elsevier, 2012, 38, pp.31--40. ⟨10.1016/j.astropartphys.2012.05.015⟩
We present a method for attaining sub-arcsecond pointing stability during sub- orbital balloon flights, as designed for in the High Altitude Lensing Observatory (HALO) concept. The pointing method presented here has the potential to perform near-spac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d041027d85d124f142aa7335fbe72582
https://hal.science/hal-01442397
https://hal.science/hal-01442397
Autor:
S. R. Ploen, Jack Aldrich
Publikováno v:
ACC
For a class of spinning mechanical systems, this article investigates the stability domain of the spun-pose equilibrium state as a function of the commanded spin-rate, which is assumed constant. In order to unify the modelling paradigm with the close
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22365342c2013ea377a4203a119797f9
https://doi.org/10.1109/acc.2012.6314651
https://doi.org/10.1109/acc.2012.6314651
Autor:
Mircea Badescu, Yoseph Bar-Cohen, Stewart Sherrit, Xiaoqi Bao, Zensheu Chang, Chris Donnelly, Jack Aldrich
Publikováno v:
SPIE Proceedings.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::64db736b21e0635f2ae249671bf4dde5
https://doi.org/10.1117/12.914422
https://doi.org/10.1117/12.914422