Singularity-Free, Spherical, Double Pointing System Containing Two Actuators

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: N/A
Agency Tracking Number: 22776
Amount: $46,869.00
Phase: Phase I
Program: SBIR
Awards Year: 1994
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
3100 Benham Avenue, Elkhart, IN, 46517
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Steven J. Remis
 (219) 288-4864
Business Contact
Phone: () -
Research Institution
The proposed innovation is a two-actuator, singularity-free double pointing system which has a spherical geometry. It has potentially widespread application as the basis of a new generation of singularity-free manipulator wrists which will not generate coupled arm/wrist singularities. It will also serve as the shoulder pointing subsystem for singularity-free manipulator arms, such as the spherical arm-subassembly. These new manipulators will meet the need addressed in the subtopic by minimizing interaction forces caused by singularities and by increasing the reliability of current singularity-free systems by reducing the required number of actuators in their design. The proposed effort aims to complete a conceptual design for a two-actuator, spherical, singularity-free double pointing system, construct an experimental mock-up of this design, and develop the kinematic equations for this system when it is applied as the pointing subsystems for three types of manipulator geometries. Both NASA and industry will benefit from having such systems, which will provide greater dexterity than present industrial systems, effectively eliminate all internal workspace singularities, and increase the reliability of singularity-free systems.

* Information listed above is at the time of submission. *

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