OPTIMUM DESIGN OF PRESSURIZED CYLINDERS.
Abstract
A true optimum design, including not only the effects of external loading and internal pressure, but also a variable cylinder diameter and the weight of pressurization equipment, would yield results so cumbersome and so restrictive as to be of no practical interest. In this work therefore, it is assumed that the cylinder diameter and the external loads are known. The objective is to determine the optimum pressure and optimum thickness, i.e., that design which yields the minimum structural weight requirement. The optimum pressure is that pressure which causes some portion of the cylinder to reach tensile yield (or some fraction thereof, since the optimum pressure is a working-not limit-pressure) at the instant buckling occurs. The main design curves can prove to be useful tools in both preliminary and final design of pressurized cylinders. They are constructed so that cylinders of various materials can be compared quickly and conveniently. Any factor of safety can be easily incorporated. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1961
- Accession Number
- AD0801524
Entities
People
- K. J. Forsberg
Organizations
- Lockheed Martin Missiles and Space