Computer Science
Scientific paper
Dec 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978lock.repts....t&link_type=abstract
Final Report Lockheed Missiles and Space Co., Huntsville, AL.
Computer Science
Exploration, Loops, Roving Vehicles, Suspension Systems (Vehicles), Vehicle Wheels, Vehicular Tracks, Glass Fiber Reinforced Plastics, Locomotion, Mission Planning, Silica Glass, Structural Engineering, Systems Engineering
Scientific paper
The loopwheel (or elastic loop) mobility concept, appears to be uniquely qualified to provide a high degree of mobility at low weight and stowage requirements for the next Mars mission now in the early planning stage. Traction elements compatible with sterilization and Mars surface environmental constraints were designed and are compatible with the rover mass, range and stowage requirements of JPL's point design Mars rover. In order to save cost, the loopwheel suspensions for the demonstration model were made of S-glass/epoxy instead of titanium, alloy specified for flight units. The load carrying fiberglass loop core is covered by a rubber tread on the outside. Reinforced rubber gear belts bonded along the inside edges provide positive engagement and transmission drive torques. A 12 Vdc drive motor with a 167:1 gear head is installed in the payload section of the hull. A chain drive transmits the motor power to the rear sprocket in the demonstration model, whereas future flight units would be directly driven by brushless hub motors within each sprocket and independent four-leg height control.
Robinson G. D.
Trautwein W.
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