Featured Research

from universities, journals, and other organizations

Gravity and the robot satellite attitude problem

Date:
November 4, 2013
Source:
Inderscience Publishers
Summary:
Using an in-orbit robot to capturing a malfunctioning satellite that is tumbling out of control is currently just a theoretical idea. However, research inspired by nature could take us a small step towards making such science fiction science fact.

Using an in-orbit robot to capturing a malfunctioning satellite that is tumbling out of control is currently just a theoretical idea. However, research inspired by nature to be published in the forthcoming issue of International Journal of Mechanisms and Robotic Systems, could take us a small step towards making such science fiction science fact.

Related Articles


Angel Flores-Abad and Ou Ma of the Department of Mechanical and Aerospace Engineering, at New Mexico State University, in Las Cruces, explain that capturing a non-cooperative tumbling object in space, such as malfunctioning satellite for repairing, refueling or towing, is increasingly of interest to space agencies. Unfortunately, the nature of orbital motion and the effects of gravity obeying Newton's Laws of Motion mean that a robot attempting to reach and grab such a tumbling object will succumb to changes in its own inertia that could either damage the equipment or result in the servicing vehicle itself which is the base of the space robot going out of control.

To find a solution to this problem, the team has turned to the way animals, including humans, naturally plot an approach trajectory based on the visual observation of the moving object -- usually prey -- and capture it. Their mathematical analysis offers a naturalistic way for a robot arm to reach and capture a tumbling satellite where impact forces between the two are minimal so that neither the stability of the servicing craft is disrupted nor the robot hand damaged by the impact. The analysis also allows the connection between the robot hand and the captured object to occur in such a way that the resulting net contact force passes right through or as close as possible to the center of mass of the servicing vehicle and the robot combined system..

The team has studied their newly proposed technology using computer simulations. They simulated a rescue mission and demonstrated how capture can occur with zero relative velocity between the robot hand and tumbling satellite with a minimal contact force. They are developing a robotics test bed to experimentally investigate the new technology. Once the technology is tested in the lab with simulated space conditions, it can be proposed for demonstration in a real space mission.


Story Source:

The above story is based on materials provided by Inderscience Publishers. Note: Materials may be edited for content and length.


Journal Reference:

  1. Angel Flores-Abad and Ou Ma. Bio-inspired approach for a space manipulator to capture a tumbling object with minimal impact force. Int. J. Mechanisms and Robotic Systems, 2013, 1, 331-348

Cite This Page:

Inderscience Publishers. "Gravity and the robot satellite attitude problem." ScienceDaily. ScienceDaily, 4 November 2013. <www.sciencedaily.com/releases/2013/11/131104112641.htm>.
Inderscience Publishers. (2013, November 4). Gravity and the robot satellite attitude problem. ScienceDaily. Retrieved October 24, 2014 from www.sciencedaily.com/releases/2013/11/131104112641.htm
Inderscience Publishers. "Gravity and the robot satellite attitude problem." ScienceDaily. www.sciencedaily.com/releases/2013/11/131104112641.htm (accessed October 24, 2014).

Share This



More Matter & Energy News

Friday, October 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

3D Printed Instruments Make Sweet Music in Sweden

3D Printed Instruments Make Sweet Music in Sweden

Reuters - Innovations Video Online (Oct. 23, 2014) Students from Lund University's Malmo Academy of Music are believed to be the world's first band to all use 3D printed instruments. The guitar, bass guitar, keyboard and drums were built by Olaf Diegel, professor of product development, who says 3D printing allows musicians to design an instrument to their exact specifications. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Chameleon Camouflage to Give Tanks Cloaking Capabilities

Chameleon Camouflage to Give Tanks Cloaking Capabilities

Reuters - Innovations Video Online (Oct. 22, 2014) Inspired by the way a chameleon changes its colour to disguise itself; scientists in Poland want to replace traditional camouflage paint with thousands of electrochromic plates that will continuously change colour to blend with its surroundings. The first PL-01 concept tank prototype will be tested within a few years, with scientists predicting that a similar technology could even be woven into the fabric of a soldiers' clothing making them virtually invisible to the naked eye. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Jet Sales Lift Boeing Profit 18 Pct.

Jet Sales Lift Boeing Profit 18 Pct.

Reuters - Business Video Online (Oct. 22, 2014) Strong jet demand has pushed Boeing to raise its profit forecast for the third time, but analysts were disappointed by its small cash flow. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
Internet of Things Aims to Smarten Your Life

Internet of Things Aims to Smarten Your Life

AP (Oct. 22, 2014) As more and more Bluetooth-enabled devices are reaching consumers, developers are busy connecting them together as part of the Internet of Things. (Oct. 22) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins