Structural and Cost Optimization of the Multiplate Antenna Reflecting Panels

摘要

This report presents the results of a research effort dedicated to optimizing the structural design and manu¬facturing and erection costs of the reflecting panels used in conjunction with the proposed Multiplate Antenna project. The study primarily considers the reflecting panel construc¬tion with only limited attention to related pedestals, foundations, actuating components, etc.nThe report discusses surface contours, allowable toler¬ances, error contributors and panel sizes. Structural re¬quirements are discussed and methods of solution presented. Results of stress and deflection analyses are given for alternate design concepts. Manufacturing, installation and cost evaluations are used to arrive at final recommendations.nThe recommended reflecting panel construction consists of a three-dimensional network of tubular members (space frame) supporting a rectangular rib framework. The rib framework in turn supports a welded wire mesh surface. An adjustment feature is built into the proposed construction to create variable surface contours. Section II contains a complete description of the final recommendations. The cost of supply¬ing enough panels to cover 2 million sq. ft. of antenna surface is $2.85 million dollars or less than $1.50 per sq. ft.