1,951 to 1,959 of 1,959 Results
Jan 3, 2022
Arya, Manan; Hodges, Richard; Sauder, Jonathan; Horst, Stephen; Mobrem, Mehran; Pedivellano, Antonio; Wen, Alexander; Truong, Alan; Pellegrino, Sergio, 2022, "Lightweight Composite Reflectarray That Can Be Flattened, Folded, and Coiled for Compact Stowage", https://hdl.handle.net/2014/56150, AIAA SciTech 2022, San Diego, California, January 3-7, 2022, JPL Open Repository
Herein is presented a design for a lightweight 5m 1m radio-frequency (RF) re ector that can be attened, folded, and coiled for compact stowage on board an ESPA-class spacecraft. The re ector is a re ectarray that operates at 3.2GHz. Compared to state- of-the-art technologies for... |
Jan 3, 2022
Gehlot, Vinod P.; Balas, Mark J.; Bandyopadhyay, Saptarshi; Quadrelli, Marco B.; Bayard, David S.; Bradford, Samuel Case; Pablos, Juan L. de, 2022, "Multi-Agent Control Approach to the Stability of Linear Deployable Systems", https://hdl.handle.net/2014/56118, AIAA SciTech 2022, San Diego, California, January 3-7, 2022, JPL Open Repository
Collisions and undesired dynamic responses may occur during the expansion phase of deployable elements on a spacecraft. This problem is more pronounced in large and complex deployable elements where characterization of transient dynamics using testing and simulation can be challe... |
Jan 3, 2022
de Pablos, Juan L.; Bandyopadhyay, Saptarshi; Quadrelli, Marco B.; Bayard, David S.; Case Bradford, Samuel; Gehlot, Vinod; Balas, Mark, 2022, "Detection and Mitigation of Transient Instabilities in Deployable Booms", https://hdl.handle.net/2014/56104, AIAA SciTech 2022, San Diego, California, January 3-7, 2022, JPL Open Repository
Deployable space structures offer versatile uses in many space applications, as they can create very large space structures from a single space launch. However, they usually present important dynamical challenges during the critical deployment phase. In this paper, we focus on th... |
Jan 3, 2022
Price, Hoppy; Shishko, Robert; Mrozinski, Joseph; Woolley, Ryan, 2022, "Concept for 2033 Crewed Mars Orbital Mission with Venus Flyby", https://hdl.handle.net/2014/56143, AIAA SciTech 2022, San Diego, California, January 3-7, 2022, JPL Open Repository
The 2033 Mars launch period provides a unique opportunity for a round trip mission with a total flight time of only 1.6 years. A concept is presented to perform a crewed Mars orbital mission in 2033 that would minimize development and mission risk by using conventional hypergolic... |
Jan 3, 2022
Johnson, Andrew E.; Aaron, Seth; Ansari, Hugh; Bergh, Charles; Bourdu, Helene; Butler, Jim; Chang, Johnny; Cheng, Richard; Cheng, Yang; Clark, Ken; Clouse, Daniel; Donnelly, Robert; Gostelow, Kim; Jay, William; Jordan, Michael; Mohan, Swati; Montgomery, James F.; Morrison, Jack; Schroeder, Steven; Shenker, Boris; Sun, George; Trawny, Nikolas; Umsted, Carson; Vaughan, Geoffrey; Ravine, Michael; Schaffner, Jacob; Shamah, Joe M.; Zheng, Jason, 2022, "Mars 2020 Lander Vision System Flight Performance 1", https://hdl.handle.net/2014/56099, AIAA SciTech 2022, San Diego, California, January 3-7, 2022, JPL Open Repository
The Mars 2020 Entry Descent and Landing (EDL) system delivered the Perseverance rover to the surface of Mars on February 18th, 2021. A large fraction of the Jezero Crater landing site was covered with landing hazards including cliffs, inescapable dune fields and rocks. These haza... |
Jan 3, 2022
Dharmadasa, Yasara B.; Mejia-Ariza, Juan; Arya, Manan; Sauder, Jonathan; Focardi, Paolo; Case Bradford, Samuel; López Jiménez, Francisco, 2022, "Design of Flexures for Deployable Reflectarrays Using High Strain Composites", https://hdl.handle.net/2014/56114, AIAA SciTech 2022, San Diego, California, January 3-7, 2022, JPL Open Repository
This paper presents a novel flexure design for small scale refelectarrays, specifically CubeSats, that requires high level of deployment precision. Advantages of using a HSC flexure includes additional thermal stability, lesser part count and passive deployment mechanism using th... |
Jan 3, 2022
Wong, Kit Pui F.; Chinn, James Z.; Kim, Wousik; Xie, Julie, 2022, "Space Induced Discharge Model to Be Used on Interface Circuit Vulnerability Assessment", https://hdl.handle.net/2014/56094, AIAA SciTech 2022, San Diego, California, January 3-7, 2022, JPL Open Repository
Charging can occur in space due to plasma and high energy particles. Charging is especially severe in certain earth orbits such as geostationary orbit, medium earth orbit and highly inclined orbit. A spacecraft that travels to other planets such as Jupiter also encounters high le... |
Jan 3, 2022
Rahimi, Niyousha; Talebi, Shahriar; Deole, Aditya; Mesbahi, Mehran; Bandyopadhyay, Saptarshi; Rahmani, Amir, 2022, "Robust Controller Synthesis for Vision-based Spacecraft Guidance and Control", https://hdl.handle.net/2014/56111, AIAA SciTech 2022, San Diego, California, January 3-7, 2022, JPL Open Repository
This work develops a method for Robust Controller for Vision-based Spacecraft (RCVS) guidance and control, integral to the robust autonomy framework for multi-spacecraft for- mation control and reconfiguration applications. The method is built around the use of a photo-realistic... |
Jan 3, 2022
Lugo, Rafael A.; Cianciolo, Alicia Dwyer; Williams, R. Anthony; Dutta, Soumyo; Powell, Richard W.; Chen, Po-Ting, 2022, "Integrated Precision Landing Performance and Technology Assessments of a Human- Scale Mars Lander Using a Generalized Simulation Framework", https://hdl.handle.net/2014/56105, Integrated Precision Landing Performance and Technology Assessments of a Human- Scale Mars Lander Using a Generalized Simulation Framework, San Diego, California, January 3-7, 2022, JPL Open Repository
Human-scale missions to Mars will likely require multiple landers delivered precisely to designated locations. The current NASA human Mars reference architecture assumes delivery of three 25 t payloads from a 1- or 5-Sol orbit to the surface with a landing precision of 50 m to en... |
