Accession Number : AD0600886

Title :   TRANSVERSE MOMENTS OF INERTIA BY MECHANICAL INTEGRATION.

Corporate Author : PICATINNY ARSENAL DOVER N J FELTMAN RESEARCH LABS

Personal Author(s) : Gerhard,S. L.

Report Date : MAY 1964

Pagination or Media Count : 10

Abstract : The formula I sub t = 3.380 (P - P) derived earlier (FRL TM - 11, 1961) is valid for any point on the axis of revolution, including the c. g. of the composite shell. The proper orientations of the drawing must be used when traversing the figure, to establish the proper signs of P and P. The procedure is described in sufficient detail to avoid ambiguity, and is illustrated by a numerical example. Corrections to an earlier report are listed. The formula for the third moment of area, P, to be used on the Amsler Type 2002 Integrator, may be used for areas lying below the axis by writing it P = -(c sub 1a - c sub 2/m/ + c sub 3i) where a, m, and i are the usual differences between initial and final readings of the three drums, and c sub 1, c sub 2, and c sub 3 are the constants appropriate for the particular arm length being used. (Author)

Descriptors :   (*PROJECTILES, MOMENT OF INERTIA), (*MOMENT OF INERTIA, PROJECTILES), BODIES OF REVOLUTION, TRIGONOMETRY, NUMERICAL INTEGRATION, MECHANICS

Distribution Statement : APPROVED FOR PUBLIC RELEASE