NASA Technical Reports Server (NTRS) : Structural pdf

NASA Technical Reports Server (NTRS) : Structural

More Book Details

Description of the Book:

A structural optimization procedure is used to determine the shape of an alternate design for the shuttle solid rocket booster field joint. In contrast to the tang and clevis design of the existing joint, this alternate design consists of two flanges bolted together. Configurations with 150 studs of 1 1/8 in. diameter and 135 studs of 1 3/16 in. diameter are considered. Using a nonlinear programming procedure, the joint weight is minimized under constraints on either von Mises or maximum normal stresses, joint opening and geometry. The procedure solves the design problem by replacing it by a sequence of approximate (convex) subproblems; the pattern of contact between the joint halves is determined every few cycles by a nonliner displacement analysis. The minimum weight design has 135 studs of 1 3/16 in. diameter and is designed under constraints on normal stresses. It weighs 1144 lb per joint more than the current tang and clevis design

• Creator/s: NASA Technical Reports Server (NTRS
• Date: 2/1/1987
• Year: 1987
• Book Topics/Themes: NASA Technical Reports Server (NTRS), DESIGN ANALYSIS, JOINTS (JUNCTIONS), NONLINEAR PROGRAMMING, SPACE SHUTTLE BOOSTERS, STRUCTURAL DESIGN, FLANGES, GEOMETRY, STRESS ANALYSIS, WEIGHT (MASS), Barthelemy, J.-F. M., Chang, K. J., Rogers, J. L., Jr

An excerpt captured from the PDF book