Science Fiction
Dictionary
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
 |
NASA's Spring Tire For Improved Lunar Mileage
The Spring Tire is the result of a collaboration between NASA and Goodyear; the new airless tire is being proposed as an upgrade to the wire mesh tires used on the Apollo Lunar Roving Vehicle.
Each hand-made Spring Tire uses 800 load-bearing springs, which provide stiffness and flexibility, as well as puncture-proof toughness.
(Nasa's Spring Tire)
The Spring Tire was installed on NASA’s Lunar Electric Rover test vehicle and put through its paces at the Johnson Space Center’s "Rock Yard" in Houston where it performed successfully."This tire is extremely durable and extremely energy efficient," noted Jim Benzing, Goodyear’s lead innovator on the project. "The spring design contours to the surface on which it’s driven to provide traction. But all of the energy used to deform the tire is returned when the springs rebound. It doesn’t generate heat like a normal tire.
According to Goodyear engineers, development of the original Apollo lunar mission tires, and the new Spring Tire were driven by the fact that traditional rubber, pneumatic (air-filled) tires used on Earth have little utility on the moon. This is because rubber properties vary significantly between the extreme cold and hot temperatures experienced in the shaded and directly sunlit areas of the moon. Furthermore, unfiltered solar radiation degrades rubber, and pneumatic tires pose an unacceptable risk of deflation.
Take a look at this Spring Tire test drive video.
(NASA's spring tire video)
The Spring Tire is touted as giving back most of the energy used to compress the tire as it moves forward. An ordinary Earth pneumatic tire keeps a significant amount of the energy used to roll it forward. The "rolling resistance" of tires accounts for about 5 percent of the total energy used by your car or truck. Hopefully, NASA vehicle mileage should be better.
I don't think that a tire made entirely of springs was predicted by sf writers. However, Arthur C. Clarke was on the right track with what he called "flex-wheels" in his 1968 novel 2001: A Space Odyssey:
Most of them moved on balloon tires, for this smooth, level plain posed no transportation difficulties; but one tanker rolled on the peculiar flex-wheels which had proved one of the best all-purpose ways of getting around on the Moon. A series of flat plates arranged in a circle, each plate independently mounted and sprung, the flex-wheel had many of the advantages of the caterpillar track from which it had evolved. It would adapt its shape and diameter to the terrain over which it was moving, and, unlike a caterpillar track, would continue to function even if a few sections were missing.
Read more about Spring Tires at NASA and Goodyear (press release); thanks to the reader who submitted this story. (BTW, although I may not write an article for every reader story idea, I really appreciate reader article idea suggestions.)
Scroll down for more stories in the same category. (Story submitted 8/5/2009)
Follow this kind of news @Technovelgy.| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
Would
you like to contribute a story tip?
It's easy:
Get the URL of the story, and the related sf author, and add
it here.
Comment/Join discussion ( 3 )
Related News Stories - (" Space Tech ")
Japan's LignoSat Space Wood Satellite And Dan Simmons' Treeship
'The Consul remembered his first glimpse of the kilometer-long treeship...' - Dan Simmons, 1989.
Is It Time For Lunar Farside Telescopes?
'Mount Ambarzumian Observatory, on Farside.' - Poul Anderson, 1958.
Spaceflight Vertigo Solved By NASA Releasing The Kraken
"I threw up in my helmet."
Lunar Pogo Stick - Retro Technovelgy From 1968
'Lucky touched the leap knob...' - Isaac Asimov, 1954.
Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.
Science Fiction
Timeline
1600-1899
1900-1939
1940's 1950's
1960's 1970's
1980's 1990's
2000's 2010's
Current News
ESTHER Tennis Robot V. Fact (1934) And Fiction (1952)
'THE red tennis robot scooted desperately across the court...'
Japan's LignoSat Space Wood Satellite And Dan Simmons' Treeship
'The Consul remembered his first glimpse of the kilometer-long treeship...'
Skyline Robotics Instantiates Heinlein's 'Window Willie' Skyscraper Robot
'Do you know what window washing used to cost by the hour?'
Drone Bombings In Moscow Foreseen 100 Years Ago
'Once the target is confirmed, it uses an IR laser to send a coded signal back to the parent, clearing it to attack.'
I Didn't Know You Can Already Buy Flesh Putty
'I filled your bullet hole with flesh putty and the lattice.'
'A Sign in Space' Gives Practice In Decoding ET Messages
'... it will be easy to form an alphabet which shall enable us to converse with the inhabitants of the moon.'
Melting Permafrost Endangers Infrastructure
'From the tower's huge octagonal base radiate wide silvery strips...'
EELS Exobiology Extant Life Surveyor For Enceladus
'It was about five feet long... a black bullet head and red camera eyes.'
Lazy Lawyer's Trust In ChatGPT Misplaced
'The Law Society has strict rules on the use of pseudo-intelligent software...'
Paradromics Implant FDA 'Breakthrough Device'
'I used my implant to tell MILLIE what we wanted...'
Mice, At Least, Can Sober Up Quickly
'Then draw some aldodote-vitamin pills from the medic.'
Is It Time For Lunar Farside Telescopes?
'Mount Ambarzumian Observatory, on Farside.'
Spaceflight Vertigo Solved By NASA Releasing The Kraken
"I threw up in my helmet."
TM-62 Loitering Ground Landmine
Runaway movie comes to life!
Helpful Robots In Science Fiction
'If you douse me again... I'm donating you to a city college.'
Lunar Pogo Stick - Retro Technovelgy From 1968
'Lucky touched the leap knob...'
