Orbital Control of a Solar Sail Using Reflectivity Control Devices Near the Earth-Moon L2 Point

2016 ◽  
Author(s):  
Daisuke Tamakoshi ◽  
Hirohisa Kojima
Keyword(s):  
Solar Sail ◽  
Orbital Control ◽  
The Earth ◽  
Control Devices

Exploring the Heliogyro’s Orbital Control Capabilities for Solar Sail Halo Orbits

2017 ◽  
Vol 40 (10) ◽  
pp. 2569-2586 ◽  
Author(s):  
Jeannette Heiligers ◽  
Daniel Guerrant ◽  
Dale Lawrence
Keyword(s):  
Solar Sail ◽  
Halo Orbits ◽  
Orbital Control

scholarly journals Solar sail Lyapunov and Halo orbits in the Earth–Moon three-body problem

2015 ◽  
Vol 116 ◽  
pp. 25-35 ◽  
Author(s):  
Jeannette Heiligers ◽  
Sander Hiddink ◽  
Ron Noomen ◽  
Colin R. McInnes
Keyword(s):  
Body Problem ◽  
Solar Sail ◽  
Three Body Problem ◽  
Halo Orbits ◽  
The Earth ◽  
Three Body

Gradient-index solar sail and its optimal orbital control

2021 ◽  
Vol 119 ◽  
pp. 107103
Author(s):  
Shahin Firuzi ◽  
Yu Song ◽  
Shengping Gong
Keyword(s):  
Solar Sail ◽  
Gradient Index ◽  
Orbital Control

Special Issue on Underwater Robotics and Mechatronics

2013 ◽  
Vol 25 (5) ◽  
pp. 771-771
Author(s):  
Kuniaki Kawabata ◽  
Fumiaki Takemura ◽  
Shinichi Sagara ◽  
Kazuo Ishii ◽  
Teruo Fujii
Keyword(s):  
Extreme Environments ◽  
Underwater Vehicles ◽  
Mobile Manipulators ◽  
Underwater Robotics ◽  
The Earth ◽  
Visual Survey ◽  
New Ideas ◽  
Control Devices ◽  
Buoyancy Control

With two-thirds of the earth covered by oceans, rivers, lakes, ponds, and glaciers – underwater work becomes specialized in often extreme environments that need unusual solutions. The unique techniques required are central to the major research and development fields of robotics and mechatronics. Research related to finding the resources and environmental observation makes underwater technology an attractive field for study. This issue covers advanced R&D in underwater robotics and mechatronics, their applications and uses. The 7 papers brought together introduce the latest in underwater robotics and mechatronics findings. Three are related to visual systems and image processing for underwater observation and inspection and visual survey. Three are related to designs for mechanisms enabling mobile manipulators, buoyancy control devices and deformable tensegrity structures for underwater vehicles. The last but not least paper implements control of underwater vehicles with passive thrusters. These cutting-edge presentations exploring underwater robotics and mechatronics are both innovative and interesting and may give you new ideas for your own work. We thank the authors for their fine contributions and the reviewers for their generous time and effort. In closing, we thank the Editorial Board of the Journal of Robotics and Mechatronics for helping make this issue possible.

Investigating the Design Space for Solar Sail Trajectories in the Earth-Moon System

2011 ◽  
Vol 4 (1) ◽  
pp. 26-44 ◽  
Author(s):  
Geoffrey G. Wawrzyniak ◽  
Kathleen C. Howell
Keyword(s):  
Design Space ◽  
Solar Sail ◽  
Mission Design ◽  
South Pole ◽  
Low Thrust ◽  
Solar Sails ◽  
Moon System ◽  
Solar Sailing ◽  
The Earth ◽  
Lunar South Pole

Solar sailing is an enabling technology for many mission applications. One potential application is the use of a sail as a communications relay for a base at the lunar south pole. A survey of the design space for a solar sail spacecraft that orbits in view of the lunar south pole at all times demonstrates that trajectory options are available for sails with characteristic acceleration values of 1.3 mm/s or higher. Although the current sail technology is presently not at this level, this survey reveals the minimum acceleration values that are required for sail technology to facilitate the lunar south pole application. This information is also useful for potential hybrid solar-sail-low-thrust designs. Other critical metrics for mission design and trajectory selection are also examined, such as body torques that are required to articulate the vehicle orientation, sail pitch angles throughout the orbit, and trajectory characteristics that would impact the design of the lunar base. This analysis and the techniques that support it supply an understanding of the design space for solar sails and their trajectories in the Earth-Moon system.

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