Multi-Body Gimbal Servo System Simulation Model.
Abstract
The equations of motion of a multi-body gimbal servo system for simulation purposes are derived using a free body momentum formulation that is maintained throughout the development, thereby retaining the original variables defined in the beginning of the model formulation. By avoiding undesirable algebraic manipulation and transformation of the original variables, a simplification is achieved in evolving and understanding a complex computer simulation model that can be debugged and run with enhanced insight to the physical process being simulated. In the formulation, translational motion is permitted for each gimbal frame, but a translational momentum conservation constraint for the system of 'rigidly' connected bodies is invoked to avoid solution of translational equations of motion for each body. A four-body example is presented where the bodies are simply connected in a series configuration, such as would represent a spacecraft with controlled gimballed appendages. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 10, 1981
- Accession Number
- ADA111396
Entities
People
- P. R. Dahl
Organizations
- The Aerospace Corporation