A Three-Dimensional Stability Analysis/Design Program (3DSAD). Report 1. General Geometry Module.

Abstract

This module of the three-dimensional stability analysis/design program (3DSAD) enables the engineer to describe the geometry of a three-dimensional structure, to interactively plot the desired structure, and then to obtain volume, weight, and centroid information for the structure. The general ways in which geometry is described are (a) two-dimensional cross sections extended in the third dimension, (b) eight-node brick elements, and (c) clusters of planar polygonal patches. Curved segments can be either circular, elliptical, or quadratic. Hidden lines in a view can be either deleted or dashed. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1980
Accession Number
ADA087074

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  • Fred T. Tracy

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  • Computations
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  • Computer-Aided Design
  • Coordinate Systems
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  • Geometry
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  • Three Dimensional
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  • United States

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