2nd Conference on Electronic Computation, Pittsburgh PA
Authors: Lucien A. Schmit, Jr.Publication Date: September 8-9, 1960
Abstract:
The use of analysis as a tool in structural design is well known. However, the really effective use of methods of analysis requires that rational methods of directed redesign be developed. Systematic structural synthesis may be defined as the rational, directed evolution of a structural configuration which, in terms of a defined criterion, efficiently performs a set of specified functional purposes. The structural design problem is viewed as a problem in the programming of interdependent activities involving: requirements and specifications, a technology governing the behavior of the system, and a criterion for evaluating the relative merit of alternate designs. It is assumed that a structure is to be designed to perform satisfactorily under several distinct design loading conditions. Limitations on stress and displacement which may be different for each element for each load condition are selected. A method for systematically converging on an optimum design in the sense of minimum total structural weight is described. Results obtained for elementary but illustrative examples using an IBM 653 digital computer are given. The emphasis throughout is on clearly defining the redesigned process in order to make possible automation of the design cycle rather than just the analysis phase.