An actuator extension transformation for a motion simulator and an inverse transformation applying Newton-Raphson's method
[electronic resource] /
by James E. Dieudonne, Russell V. Parrish, and Richard E. Bardusch.

Description

Main Author

Dieudonne, James E.

Related Names

Bardusch, Richard E.
Parrish, Russell V.
United States. National Aeronautics and Space Administration.
Langley Research Center.

Language(s)

English

Published

Washington, D.C. : National Aeronautics and Space Administration : [1972]

Subjects

Real-time control.
Transformations (Mathematics)
Iterative methods (Mathematics)
Actuators.
Flight simulators > Flight simulators / Automatic control.

Summary

A set of equations which transform position and angular orientation of the centroid of the payload platform of a six-degree-of-freedom motion simulator into extensions of the simulator's actuators has been derived and is based on a geometrical representation of the system. An iterative scheme, Newton-Raphson's method, has been successfully used in a real time environment in the calculation of the position and angular orientation of the centroid of the payload platform when the magnitude of the actuator extensions is known. Sufficient accuracy is obtained by using only one Newton-Raphson iteration per integration step of the real time environment.

Note

"November 1972."--Cover.
Major NASA subject terms: Motion, Newton-Raphson Method, Real Time Operation, Simulators, Actuators, Iteration, Numberical Analysis, Positioning.
Prepared at Langley Research Center.

Physical Description

20 p.: ill. ; 26 cm.

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