NASA 1996 SBIR Phase I


PROPOSAL NUMBER : 96-1 05.01-7022

PROJECT TITLE : Pharaoh's Drive Piezoelectric Motor

TECHNICAL ABSTRACT (LIMIT 200 WORDS)

The proposed effort focuses on the need for precision robotic manipulators and effectors for space applications. Specifically, a innovative piezoelectric motor is proposed that has application to weight and size critical missions. The proposed motor is a novel concept that is based on the mechanics which are thought to have been used to move the obelisks of ancient Egypt. In building the pyramids, the pharaohs moved very large stones great distances using a stored strain-energy method. By utilizing this ancient obelisk transportation theory an extremely simple, robust piezoelectric actuator, the Pharaoh's Drive Motor, will be realized. The Pharaoh's Drive motor has the advantage of holding a constant force while consuming no power. Additionally, it will be able to step quasi-staticly from nanometers to tens of centimeters. The Pharaoh's drive motor will be light-weight, compact, and is suitable to operating at cryogenic temperature. Rather than reliance on moving parts, the proposed actuator would be solid state and directly use piezoelectric elements for motion and force generation. The simplicity of the motor concept allows compatibility to space missions. It is envisioned that the proposed Pharaoh's Drive motor will readily form a building block for much more complex robotic systems.
POTENTIAL COMMERCIAL APPLICATIONS
The proposed Pharaoh's Drive motor concept has application to any mechanism which requires small size, large-power density, long stroke, precision actuators. The Pharaoh Drive can be easily configured as either a linear or rotary motor. These motors can be used as robotic manipulators for grasping and manipulating objects, industrial manufacturing, or as precision positioners for both high and low tech instruments.
NAME AND ADDRESS OF PRINCIPAL INVESTIGATOR
David Newton
Garman Systems, Inc.
2401 21st Ave South, Suite 102
Nashville, TN 37212
NAME AND ADDRESS OF OFFEROR
Garman Systems, Inc.
2401 21st Ave South, Suite 102
Nashville, TN 37212