Accession Number:

AD0673950

Title:

DIGITAL COMPUTER OF GEOMETRIC CHARACTERISTICS OF SECTIONS RELATIVE TO CENTRAL AXES (TSIFROVOI VYCHISLITEL GEOMETRICHESKIKH KHARAKTERISTIK SECHENII OTNOSITELNO TSENTRALNYKH OSEI),

Descriptive Note:

Corporate Author:

FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

Report Date:

1967-10-06

Pagination or Media Count:

12.0

Abstract:

The report considers a specialized device for automatically determining the position of the center of gravity and the moments of inertia in a cross section with respect to central axes for structural strength calculations. The advantages of specialized machines over general-purpose computers are discussed, particularly from the economic standpoint. It is pointed out that the latest achievements in the development of reliable and highly accurate photoelectric systems for line tracing as well as systems for programming an outline to a given scale have made it possible to automate the process of calculating geometric characteristics without using a digital computer. The TsGI-2 instrument described by the author computes the position of the center of gravity and the moments of inertia of a given cross section in two stages. In the first stage the instrument operates as an integrator for calculating the area, static moments and moments of inertia for the given cross section in a rectangular coordinate system according to simplified formulas. In the second stage, the calculator is set up to solve algebraic equations using the solutions from the first stage to find the position of the center of gravity and moments of inertia of the cross section with respect to central axes parallel to the axes of the given coordinate system. Author

Subject Categories:

  • Computer Hardware

Distribution Statement:

APPROVED FOR PUBLIC RELEASE