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Optimum Design of Frames Using Linear Programming Techniques
Presented is an optimization technique, using linear programming methods, which can effectively be used to design structural frames. Stress constraints as well as conditions of equilibrium and compatibility are considered. The approach is demonstrated to be more efficient than presently available nonlinear techniques on large problems. Although the method is iterative, a modification of the standard simplex method is used which considerably decreases computational time. A discussion is presented outlining how the technique can be extended to handle additional requirements such multiple loading conditions, non-nodal loads and displacement constraints. (Author).
Perspectives in Computing
Applications in the academic and scientific community.
Occupant Model for Human Motion
The report describes a two-dimensional model of a human being appropriate for display on a computer graphic terminal. The model was designed for use with the PROMETHEUS program which predicts the positions of an occupant within a vehicle cabin during a crash. However, the model can also be used in the simulation of other human motions, such as walking, etc. Also presented is the design of a simple device to automatically generate movies from a terminal screen. Triggered by the bell on the terminal, one frame is taken of each position of any time-varying event, thus creating a movie depicting simulated motion.
