Monocoque structure for the SKITTER three-legged walker

Details Monocoque structure for the SKITTER three-legged walker Monocoque structure for the SKITTER three-legged walker

Jun 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988git..reptt....b&link_type=abstract

Advanced Design Program Georgia Inst. of Tech., Atlanta. School of Mechanical Engineering.

Statistics

Applications

Esters, Monocoque Structures, Resins, Walking Machines, Actuators, Arctic Regions, Chains, Drilling, Hoses, Pyramids, Rubber, Torque

Scientific paper

The SKITTER 2 design is a monocoque version of the proposed lunar three-legged walker. By the definition of monocoque, the body and legs are a shell with no internal ribbing or supports added for absorbing stresses. The purpose of the monocoque is to encase the elements used for power transmission, power supply, and control of the motion. The material for the structure is a vinyl ester resin, Derakane 8084. This material is easily formable and locally obtainable. The body consists of a hexagonally shaped cylinder with truncated hexagonal pyramids on the top and botton. The legs are eight inch diameter cylinders. The legs are comprised of a tibia section and a femur section. The SKITTER 2 is powered by six actuators which provide linear forces that are transformed into rotary torques by a series of chains and sprockets. The joints connect the femur to the body and the tibia to the femur. Surrounding the joints are flexible rubber hoses that fully encase the chains and sprockets. The SKITTER 2 is capable of walking upside down, righting itself after being overturned, and has the ability to perform in many environments. Applications for this walker include lunar transport or drilling, undersea exploration, and operation in severe surroundings such as arctic temperatures or high radiation.

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