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Journal articles on the topic 'Reorientation maneuver'

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1

Kim, Donghoon, James D. Turner, and Henzeh Leeghim. "Reorientation of Asymmetric Rigid Body Using Two Controls." Mathematical Problems in Engineering 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/708935.

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Most spacecrafts are designed to be maneuvered to achieve pointing goals. This is accomplished usually by designing a three-axis control system, which can achieve arbitrary maneuvers, where the goal is to repoint the spacecraft and match a desired angular velocity at the end of the maneuver. New control laws are required, however, if one of the three-axis control actuators fails. This paper explores suboptimal maneuver strategies when only two control torque inputs are available. To handle this underactuated system control problem, the three-axis maneuver strategy is transformed to two success
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2

Rahn, Christopher D., and Peter M. Barba. "Reorientation maneuver for spinning spacecraft." Journal of Guidance, Control, and Dynamics 14, no. 4 (1991): 724–28. http://dx.doi.org/10.2514/3.20705.

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3

Posani, Massimo, Mauro Pontani, and Paolo Gasbarri. "Nonlinear Slewing Control of a Large Flexible Spacecraft Using Reaction Wheels." Aerospace 9, no. 5 (2022): 244. http://dx.doi.org/10.3390/aerospace9050244.

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Reorientation maneuvers represent a key task for large satellites. This work considers a space vehicle with solar panels and reaction wheels as actuation devices. Solar panels are modeled as flexural beams, using the modal decomposition technique. An inertia-free nonlinear attitude control algorithm, which enjoys quasi-global stability properties, is employed for the numerical simulation of a large reorientation maneuver. Preliminary analysis with ideal actuation allows sizing the control system and identifying the expected elastic displacements. Then, the actuation dynamics is included, and t
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4

Posani, Massimo, Mauro Pontani, and Paolo Gasbarri. "Nonlinear Slewing Control of a Large Flexible Spacecraft Using Reaction Wheels." Aerospace 9, no. 5 (2022): 244. http://dx.doi.org/10.3390/aerospace9050244.

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Reorientation maneuvers represent a key task for large satellites. This work considers a space vehicle with solar panels and reaction wheels as actuation devices. Solar panels are modeled as flexural beams, using the modal decomposition technique. An inertia-free nonlinear attitude control algorithm, which enjoys quasi-global stability properties, is employed for the numerical simulation of a large reorientation maneuver. Preliminary analysis with ideal actuation allows sizing the control system and identifying the expected elastic displacements. Then, the actuation dynamics is included, and t
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5

Bang, Hyochoong, Jong-Ah Kim, and Myungsuk Kim. "Optimal Reorientation Maneuver of Bias Momentum Spacecraft." Journal of Guidance, Control, and Dynamics 20, no. 6 (1997): 1076–82. http://dx.doi.org/10.2514/2.4188.

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6

Levskii, M. V. "Analytical Solving the Optimal Control Problem of Spacecraft’s Slew Maneuver with Minimal Energy of Rotation." Mekhatronika, Avtomatizatsiya, Upravlenie 21, no. 3 (2020): 174–83. http://dx.doi.org/10.17587/mau.21.174-183.

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Dynamic problem of optimal reorientation from an arbitrary initial attitude into the given final angular position with restricted control which minimizes kinetic energy of spacecraft rotation was solved. Termination time of maneuver is known. Quadratic criterion of quality is applied for finding the optimal control program. Use of integral index in special form concerning angular velocity has helped solve the formulated problem by analytical way. Control law was written down in explicit form. Designing the optimal control is based on quaternion variables and models. It is shown that during opt
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7

Quinn, Daniel, Daniel Kress, Eric Chang, Andrea Stein, Michal Wegrzynski, and David Lentink. "How lovebirds maneuver through lateral gusts with minimal visual information." Proceedings of the National Academy of Sciences 116, no. 30 (2019): 15033–41. http://dx.doi.org/10.1073/pnas.1903422116.

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Flying birds maneuver effectively through lateral gusts, even when gust speeds are as high as flight speeds. What information birds use to sense gusts and how they compensate is largely unknown. We found that lovebirds can maneuver through 45° lateral gusts similarly well in forest-, lake-, and cave-like visual environments. Despite being diurnal and raised in captivity, the birds fly to their goal perch with only a dim point light source as a beacon, showing that they do not need optic flow or a visual horizon to maneuver. To accomplish this feat, lovebirds primarily yaw their bodies into the
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8

Gorinevsky, Dimitry, and George Vukovich. "Nonlinear Input Shaping Control of Flexible Spacecraft Reorientation Maneuver." Journal of Guidance, Control, and Dynamics 21, no. 2 (1998): 264–70. http://dx.doi.org/10.2514/2.4252.

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9

Urakubo, Takateru, Kazuo Tsuchiya, and Yukio Tada. "REORIENTATION MANEUVER OF A SPACECRAFT COMPOSED OF TWO RIGID BODIES." Proceedings of the International Conference on Motion and Vibration Control 6.1 (2002): 355–60. http://dx.doi.org/10.1299/jsmeintmovic.6.1.355.

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10

Endo, Tatsuya, and Seiya Ueno. "OPTIMAL REORIENTATION MANEUVER OF SATELLITES BY TWO REACTION WHEELS WITH ATTITUDE CONSTRAINTS." Proceedings of the International Conference on Motion and Vibration Control 6.2 (2002): 961–66. http://dx.doi.org/10.1299/jsmeintmovic.6.2.961.

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11

Rajguru, Suhrud M., Marytheresa A. Ifediba, and Richard D. Rabbitt. "Biomechanics of horizontal canal benign paroxysmal positional vertigo." Journal of Vestibular Research 15, no. 4 (2005): 203–14. http://dx.doi.org/10.3233/ves-2005-15404.

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Horizontal canal (HC) benign paroxysmal positional vertigo (HC-BPPV) is a vestibular disorder characterized by bouts of horizontal ocular nystagmus induced during reorientation of the head relative to gravity. The present report addresses the application of a morphologically descriptive 3-canal biomechanical model of the human membranous labyrinth to study gravity-dependent semicircular canal responses during this condition. The model estimates dynamic cupular and endolymph displacements elicited during HC-BPPV provocative diagnostic maneuvers and canalith repositioning procedures (CRPs). The
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12

Yue, Baozeng. "Chaotic attitude and reorientation maneuver for completely liquid-filled spacecraft with flexible appendage." Acta Mechanica Sinica 25, no. 2 (2008): 271–77. http://dx.doi.org/10.1007/s10409-008-0213-7.

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13

Levskii, M. V. "Dynamic Problem of Optimal Control of Spacecraft Attitude under Restriction on Phase Variables." Mekhatronika, Avtomatizatsiya, Upravlenie 22, no. 6 (2021): 321–30. http://dx.doi.org/10.17587/mau.22.321-330.

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An analytical solution to the optimal control problem of spacecraft reorientation from an arbitrary initial angular position into a required final angular position under the restrictions on control functions and phase variables is presented (the controlling moment and angular velocity are restricted). Time of slew maneuver is minimized. The specific case was considered when maximum admissible kinetic energy of rotation is significant restriction. Constructing the optimal control of reorientation is based on Pontryagin’s maximum principle and the quaternionic variables and models. It is shown t
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14

Gorinevsky, Dimitry, and George Vukovich. "Control of Flexible Spacecraft Using Nonlinear Approximation of Input Shape Dependence on Reorientation Maneuver Parameters." IFAC Proceedings Volumes 29, no. 1 (1996): 7612–17. http://dx.doi.org/10.1016/s1474-6670(17)58914-4.

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15

Gorinevsky, D., and G. Vukovich. "Control of flexible spacecraft using nonlinear approximation of input shape dependence on reorientation maneuver parameters." Control Engineering Practice 5, no. 12 (1997): 1661–71. http://dx.doi.org/10.1016/s0967-0661(97)10020-x.

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16

Ye, Dong, Xiao Zhang, Xucheng Wan, and Zhaowei Sun. "Finite time control strategy for satellite attitude maneuver based on hybrid actuator." Transactions of the Institute of Measurement and Control 40, no. 9 (2017): 2798–806. http://dx.doi.org/10.1177/0142331217727051.

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In this paper, a Nonsingular Terminal Sliding Mode Control (NTSMC) strategy is investigated to address the finite-time attitude tracking problem of a rigid spacecraft. Hybrid thruster and flywheel actuator system is used for rapid reorientation under external disturbance. The reference torque is obtained from time-optimal attitude trajectory, and it is exerted on the satellite by thrusters in the form of feedforward compensation. Owing to thruster output torque deviation, initial measurement error and external disturbances, the practical trajectory of a satellite would deviate from reference t
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17

Bilbao, Alejandro, Amar K. Patel, Mizanur Rahman, Siva A. Vanapalli, and Jerzy Blawzdziewicz. "Roll maneuvers are essential for active reorientation of Caenorhabditis elegans in 3D media." Proceedings of the National Academy of Sciences 115, no. 16 (2018): E3616—E3625. http://dx.doi.org/10.1073/pnas.1706754115.

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Locomotion of the nematode Caenorhabditis elegans is a key observable used in investigations ranging from behavior to neuroscience to aging. However, while the natural environment of this model organism is 3D, quantitative investigations of its locomotion have been mostly limited to 2D motion. Here, we present a quantitative analysis of how the nematode reorients itself in 3D media. We identify a unique behavioral state of C. elegans—a roll maneuver—which is an essential component of 3D locomotion in burrowing and swimming. The rolls, associated with nonzero torsion of the nematode body, resul
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18

Deng, M. L., and B. Z. Yue. "Attitude Dynamics and Control of Liquid Filled Spacecraft with Large Amplitude Fuel Slosh." Journal of Mechanics 33, no. 1 (2016): 125–36. http://dx.doi.org/10.1017/jmech.2016.60.

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AbstractThis paper focuses on the attitude dynamics and control of liquid filled spacecraft, and the large amplitude fuel slosh dynamics is included by using an improved moving pulsating ball model. The moving pulsating ball model is an equivalent mechanical model that is capable of imitating the whole liquid reorientation process, specifically for the occurrence of large amplitude slosh. This model is improved by incorporating a static capillary force and an effective mass factor. The improvements on this model are validated with previously published experiment results. The spacecraft attitud
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19

Yutko, Brian M., and Robert G. Melton. "Optimizing spacecraft reorientation maneuvers using a pseudospectral method." Journal of Aerospace Engineering, Sciences and Applications 2, no. 1 (2010): 1–14. http://dx.doi.org/10.7446/jaesa.0201.01.

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20

Bocvarov, Spiro, Frederick H. Lutze, and Eugene M. Cliff. "Time-optimal reorientation maneuvers for a combat aircraft." Journal of Guidance, Control, and Dynamics 16, no. 2 (1993): 232–40. http://dx.doi.org/10.2514/3.20994.

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21

Bocvarov, Spiro, Frederick H. Lutze, and Eugene M. Cliff. "Extremal vehicle reorientation maneuvers - Symmetries and group properties." Journal of Guidance, Control, and Dynamics 16, no. 4 (1993): 648–53. http://dx.doi.org/10.2514/3.21063.

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22

Melton, Robert G. "Numerical Analysis of Constrained, Time-Optimal Satellite Reorientation." Mathematical Problems in Engineering 2012 (2012): 1–19. http://dx.doi.org/10.1155/2012/769376.

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Previous work on time-optimal satellite slewing maneuvers, with one satellite axis (sensor axis) required to obey multiple path constraints (exclusion from keep-out cones centered on high-intensity astronomical sources) reveals complex motions with no part of the trajectory touching the constraint boundaries (boundary points) or lying along a finite arc of the constraint boundary (boundary arcs). This paper examines four cases in which the sensor axis is either forced to follow a boundary arc, or has initial and final directions that lie on the constraint boundary. Numerical solutions, generat
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23

Bocvarov, Spiro, Eugene M. Cliff, and Frederick H. Lutze. "Significance of the dihedral effect in rapid fuselage-reorientation maneuvers." Journal of Aircraft 31, no. 3 (1994): 548–55. http://dx.doi.org/10.2514/3.46529.

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24

Li, Feiyue, Peter M. Bainum, N. Glenn Creamer, and Shalom Fisher. "Rapid Reorientation Maneuvers of Experimental Spacecraft with a Pendulum Appendage." Journal of Guidance, Control, and Dynamics 21, no. 1 (1998): 164–71. http://dx.doi.org/10.2514/2.4213.

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25

Reyhanoglu, Mahmut, and N. Harris McClamroch. "Planar reorientation maneuvers of space multibody systems using internal controls." Journal of Guidance, Control, and Dynamics 15, no. 6 (1992): 1475–80. http://dx.doi.org/10.2514/3.11411.

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26

Azam, M., S. N. singh, A. Iyer, and Y. P. Kakad. "Detumbling and reorientation maneuvers and stabilization of NASA SCOLE system." IEEE Transactions on Aerospace and Electronic Systems 28, no. 1 (1992): 80–91. http://dx.doi.org/10.1109/7.135434.

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27

Melton, Robert G. "Hybrid methods for determining time-optimal, constrained spacecraft reorientation maneuvers." Acta Astronautica 94, no. 1 (2014): 294–301. http://dx.doi.org/10.1016/j.actaastro.2013.05.007.

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28

Fracchia, Guido, James D. Biggs, and Matteo Ceriotti. "Analytical low-jerk reorientation maneuvers for multi-body spacecraft structures." Acta Astronautica 178 (January 2021): 1–14. http://dx.doi.org/10.1016/j.actaastro.2020.08.020.

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29

Avanzini, Giulio, and Guido de Matteis. "Variable Speed Control Moment Gyroscopes for Reorientation Maneuvers of Rigid Spacecraft." Journal of the Astronautical Sciences 52, no. 4 (2004): 531–48. http://dx.doi.org/10.1007/bf03546416.

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30

Bockhorst, Tobias, and Uwe Homberg. "Interaction of compass sensing and object-motion detection in the locust central complex." Journal of Neurophysiology 118, no. 1 (2017): 496–506. http://dx.doi.org/10.1152/jn.00927.2016.

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Goal-directed behavior is often complicated by unpredictable events, such as the appearance of a predator during directed locomotion. This situation requires adaptive responses like evasive maneuvers followed by subsequent reorientation and course correction. Here we study the possible neural underpinnings of such a situation in an insect, the desert locust. As in other insects, its sense of spatial orientation strongly relies on the central complex, a group of midline brain neuropils. The central complex houses sky compass cells that signal the polarization plane of skylight and thus indicate
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31

Classens, Michael. "City Farmer: Adventures in Urban Food Growing." UnderCurrents: Journal of Critical Environmental Studies 18 (April 27, 2014): 53–54. http://dx.doi.org/10.25071/2292-4736/38548.

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City Farmer: Adventures in Urban Food Growing.By LORRAINE JOHNSON. D. & M. Publishers Inc., 2010. $19.95Reviewed by Michael ClassensWhile the title of Lorraine Johnson’s most recent book may seem like a disjointed juxtaposition, an ill-conceived utopian fantasy, or both, it is only fleetingly so. Despite the considerable and colliding pathologies of the contemporary food system—adequately summarized in the book— |Johnson forcefully argues that small-scale ‘city farmers’ are the vanguard of an emerging transformation of the contemporary food system. True, in the aggregate, city farming rema
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32

Charlet, Mark, and Clément Gosselin. "Reorientation of Free-Falling Legged Robots." ASME Open Journal of Engineering 1 (January 1, 2022). http://dx.doi.org/10.1115/1.4053897.

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Abstract Based on the cat-righting reflex, this paper presents two reorientation maneuvers for legged robots that can produce roll and pitch reorientation during free fall. In order to better describe and plan these maneuvers, two separate, but equivalent, theoretical frameworks that describe the kinematic and dynamic behavior of free-floating articulated architectures are explored and developed. A nine-degree-of-freedom quadruped robot architecture is then presented and used to demonstrate the proposed maneuvers. Finally, kinematic and dynamic simulations of this architecture are performed. T
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33

Guan, Tao, and Bin Li. "Output feedback attitude control for rigid spacecraft under attitude constraints." Journal of Industrial and Management Optimization, 2022, 0. http://dx.doi.org/10.3934/jimo.2022173.

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<p style='text-indent:20px;'>An output feedback control law is proposed in this paper for spacecraft attitude reorientation task. Although attitude maneuver has been widely investigated and obtained significant results, it is still challenging when considering attitude pointing constraints and lacking the information of angular velocity. Firstly, potential function is introduced to tackle attitude pointing constraints. Then, by jointly designing sign function and potential function, the anti-unwinding performance can also be achieved. Furthermore, the relevant information of angular velo
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34

Ambaram, Rishal, and Kevin Duplechain. "Reorienting Lower Lateral Cartilages With Lateral Crural Struts: Aesthetic and Functional Benefits." American Journal of Cosmetic Surgery, July 25, 2022, 074880682211012. http://dx.doi.org/10.1177/07488068221101225.

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Nasal tip shape and position play a major role in the aesthetic appearance of the nose. Cephalically oriented lower lateral cartilages (LLC) are associated with a broad boxy nasal tip. Reorienting cephalically positioned LLC with lateral crural strut grafts is a technique used to correct the nasal tip. An open approach surgical technique is described to evaluate the true orientation of the LLC and correct the boxy nasal tip. Five cases are shown with pre- and post-op pictures. The identical surgical technique is used in all cases with a variation in grafts necessary to create the desired esthe
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35

Angelopoulos, V., E. Tsai, L. Bingley, et al. "The ELFIN Mission." Space Science Reviews 216, no. 5 (2020). http://dx.doi.org/10.1007/s11214-020-00721-7.

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Abstract The Electron Loss and Fields Investigation with a Spatio-Temporal Ambiguity-Resolving option (ELFIN-STAR, or heretoforth simply: ELFIN) mission comprises two identical 3-Unit (3U) CubeSats on a polar (∼93∘ inclination), nearly circular, low-Earth (∼450 km altitude) orbit. Launched on September 15, 2018, ELFIN is expected to have a >2.5 year lifetime. Its primary science objective is to resolve the mechanism of storm-time relativistic electron precipitation, for which electromagnetic ion cyclotron (EMIC) waves are a prime candidate. From its ionospheric vantage point, ELFIN uses its
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36

Bowles-Smith, Emily. "Recovering Love’s Fugitive: Elizabeth Wilmot and the Oscillations between the Sexual and Textual Body in a Libertine Woman’s Manuscript Poetry." M/C Journal 11, no. 6 (2008). http://dx.doi.org/10.5204/mcj.73.

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Elizabeth Wilmot, Countess of Rochester, is best known to most modern readers as the woman John Wilmot, Earl of Rochester, abducted and later wed. As Samuel Pepys memorably records in his diary entry for 28 May 1665:Thence to my Lady Sandwich’s, where, to my shame, I had not been a great while before. Here, upon my telling her a story of my Lord Rochester’s running away on Friday night last with Mrs Mallet, the great beauty and fortune of the North, who had supped at Whitehall with Mrs Stewart, and was going home to her lodgings with her grandfather, my Lord Haly, by coach; and was at Charing
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