Optimum Structural Design Using Linear Programming

by Fred Moses,

Serial Information: Journal of the Structural Division, 1964, Vol. 90, Issue 6, Pg. 89-104

Document Type: Journal Paper

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Abstract: It is frequently true that several trial designs using the same basic structural configuration must be considered before arriving at an acceptable design either in terms of cost or weight. A systematic approach is developed for finding optimum (lightest or cheapest) designs for a wide class of elastic structures. Design parameters are treated as variables and optimization is accomplished by transforming the analysis and design cycle into the solution of a series of linear programming problems. Two examples are used as illustrations including a truss and a rigid frame each subjected to two distinct load conditions. Significant savings in weight may result from a small investment of computational effort. The amount of computation in performing a single cycle of linear programming optimization will not be excessive compared to the computations required for analyzing another trial design.

Subject Headings: Linear analysis | Computer programming | Professional societies | Plastic design | Elastic analysis | Parameters (statistics)

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