Academic literature on the topic 'Rigid Formation Flying'

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Journal articles on the topic "Rigid Formation Flying"

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Zhu, Zhihao, and Yu Guo. "Robust adaptive attitude tracking coordination control for spacecraft formation with unknown time-varying inertia." Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 233, no. 1 (2017): 310–23. http://dx.doi.org/10.1177/0954410017730089.

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This paper investigates robust adaptive coordinated attitude tracking issue for spacecraft formation flying system with nonrigid and rigid spacecraft under directed communication topology, where the inertia and external disturbances are totally unknown time-varying. A novel robust adaptive attitude tracking coordination control algorithm is proposed to regulate the attitude of the spacecraft to a common time-varying reference state. The control law is robust adaptive against external disturbances and time-varying inertia under the directed topology. In addition, a dynamic adjustment function i
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Costantini, Elia, Emanuele Luigi de Angelis, and Fabrizio Giulietti. "Cooperative Drone Transportation of a Cable-Suspended Load: Dynamics and Control." Drones 8, no. 9 (2024): 434. http://dx.doi.org/10.3390/drones8090434.

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The cooperative transportation of a cable-suspended load by two unmanned rotorcraft is analyzed. Initially, the equations describing a system composed of three point masses and two rigid cables are derived. The model is then linearized about the hovering condition, and analytical expressions are derived to describe the eigenstructure of the open-loop system. Thanks to the specific parameterization of the problem, the different dynamic modes are outlined and discussed within an analytical framework. A novel controller is designed to enable the UAVs in the formation to perform trajectory trackin
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Liao, Jianwei, Haohao Shi, Jiamei Wang, et al. "Investigation of the Gel Properties and Gelation Mechanism of a Surimi Blend Composed of Skipjack Tuna (Katsuwonus pelamis) and Purpleback Flying Squid (Symplectoteuthis oualaniensis)." Foods 14, no. 4 (2025): 621. https://doi.org/10.3390/foods14040621.

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The objective of the present study was to investigate the gel properties and gelation mechanism of a surimi blend consisting of Katsuwonus pelamis and Symplectoteuthis oualaniensis. Superior gel properties, including gel strength, cooking loss and water holding capacity, were observed in mixed surimi. With increasing proportions of K. pelamis in the blend, an increase in hardness, gumminess and chewiness emerged, which compromised the resilience and whiteness of the gels. The detection of apparent viscosity revealed the shear-thinning properties of mixed surimi. The results of the molecular fo
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Zhong, Yini, and Rui Zhong. "Dynamics, Deployment and Retrieval Strategy for Satellite-Sail Transverse Formation with Model Inaccuracy." Aerospace 9, no. 10 (2022): 602. http://dx.doi.org/10.3390/aerospace9100602.

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One of the important applications of the space tethered system is formation flying. To satisfy the requirement for interferometry of ground targets by remote-sensing satellites, a new type of tethered solar sail spacecraft has been proposed in recent research. The replacement of subsatellites of conventional tethered satellite systems with solar sail spacecraft allows for a special formation configuration in which the main satellite is in sun-synchronous orbit and the subsolar sail is in displaced orbit. If the solar sail is at the appropriate attitude, the main satellite and the solar sail sp
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Zhang, Yixin, Xingjian Wang, Shaoping Wang, Wenhao Huang, and Qiwang Weng. "Kinematic and Aerodynamic Investigation of the Butterfly in Forward Free Flight for the Butterfly-Inspired Flapping Wing Air Vehicle." Applied Sciences 11, no. 6 (2021): 2620. http://dx.doi.org/10.3390/app11062620.

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To ensure the stability of flight, the butterfly needs to flap its wings and simultaneously move its main body to achieve all kinds of flying motion, such as taking off, hovering, or reverse flight. The high-speed camera is used to record the swing of the abdomen, the movement of the wings, and the pitch angle of the body for butterflies during their free flight; the comprehensive biokinetic observations show that the butterfly’s wings and body are coupled in various flight states. The swing of the abdomen and the flap of the fore wing affect the pitch motion significantly. For theoretical ana
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Morgado, Fábio, Marco Fossati, and Dániel G. Kovács. "Modeling the Interaction of Proximal Fragments for Destructive Atmospheric Entry Analysis." AIAA Journal, April 25, 2024, 1–16. http://dx.doi.org/10.2514/1.j063267.

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The destructive atmospheric entry process is distinguished by the formation of several fragments due to the severe aerothermal loads encountered during the descent. The proximity of debris leads to shock wave interactions and collisions between bodies, influencing the overall dynamics of the fragments and affecting the prediction of demise and ground impact location. To account for these effects, the use of computational fluid dynamics is introduced to resolve the shock interaction patterns by employing a quasi-steady approach, and the use of a simple rigid-body collision model is introduced t
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Mullen, Mark. "It Was Not Death for I Stood Up…and Fragged the Dumb-Ass MoFo Who'd Wasted Me." M/C Journal 6, no. 1 (2003). http://dx.doi.org/10.5204/mcj.2134.

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I remember the first time I saw a dead body. I spawned just before dawn; around me engines were clattering into life, the dim silhouettes of tanks beginning to move out in a steady grinding rumble. I could dimly make out a few other people, the anonymity of their shadowy outlines belied by the names hanging over their heads in a comforting blue. Suddenly, a stream of tracers arced across the sky; explosions sounded nearby, then closer still; a tank ahead of me stopped, turned sluggishly, and fired off a couple of rounds, rocking slightly against the recoil. The radio was filled with talk of Ge
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Dissertations / Theses on the topic "Rigid Formation Flying"

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Kowalchuk, Scott Allen. "Investigation of Nonlinear Control Strategies Using GPS Simulator And Spacecraft Attitude Control Simulator." Diss., Virginia Tech, 2007. http://hdl.handle.net/10919/29547.

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In this dissertation, we discuss the Distributed Spacecraft Attitude Control System Simulator (DSACSS) testbed developed at Virginia Polytechnic Institute and State University for the purpose of investigating various control techniques for single and multiple spacecraft. DSACSS is comprised of two independent hardware-in-the-loop simulators and one software spacecraft simulator. The two hardware-in-the-loop spacecraft simulators have similar subsystems as flight-ready spacecraft (e.g. command and data handling; communications; attitude determination and control; power; payload; and guidance an
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Challa, Vinay Reddy. "Analysis of Kinematic Constraints in Fixed-Wing UAV Formation Flying." Thesis, 2020. https://etd.iisc.ac.in/handle/2005/4694.

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Rise in autonomy has led to increase in usage of Unmanned Aerial Vehicles (UAVs) for various applications and has allowed the UAVs to perform complex and hazardous missions with ease. Formation of multiple UAVs finds applications in both military and civilian operations. Tasks like image mosaicking, mapping and target triangulation require multiple UAVs to maintain rigid formation while performing the mission. While maneuvering, rigid formation flying requires different speeds and bank angles from individual UAVs. However, fixed-wing UAVs have operational limits on bank-angle and speed.
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Book chapters on the topic "Rigid Formation Flying"

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Capó-Lugo, Pedro A., and Peter M. Bainum. "Rigid body motion." In Orbital Mechanics and Formation Flying. Elsevier, 2011. http://dx.doi.org/10.1533/9780857093875.93.

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Conference papers on the topic "Rigid Formation Flying"

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Challa, Vinay R., and Ashwini Ratnoo. "Analysis of UAV Kinematic Constraints for Rigid Formation Flying." In AIAA Guidance, Navigation, and Control Conference. American Institute of Aeronautics and Astronautics, 2016. http://dx.doi.org/10.2514/6.2016-2105.

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