Accession Number : AD0713647

Title :   OPTIMALE AUSRICHTUNG VON ROTATIONSSYMMETRISCHEN DRALLSTABILISIERTEN KOERPERN IN ABHAENGIGKEIT VOM TRAEGHEITSMOMENTENVERHAELTNIS (Optimal Alignment of Rotational-Symmetrical, Spin-Stabilized Bodies, Considering the Characteristics of the Moment of Inertia),

Corporate Author : DEUTSCHE FORSCHUNGS- UND VERSUCHSANSTALT FUER LUFT- UND RAUMFAHRT E V OBERPFAFFENHOFEN (WEST GERMANY)

Personal Author(s) : Schmieder,Lothar

Report Date : 1970

Pagination or Media Count : 6

Abstract : On condition that the angular velocity of a spin stabilized rigid body - the moment of inertia of which has rotational (not spherical) symmetry - is constant, then this body may be aligned by means of one single jet. The pulses of this jet may be approximated by a delta function. The trajectories which are traced by the spin axis and the vector of the angular momentum are projected on a cylinder. This cylinder is unrolled on to the plane of the complex numbers, and the paths are then described by complex functions. Solutions, which are meaningful in a technical sense, consist of cycles of N pulses in equidistant intervals, which are compared with the fuel optimal and time optimal solution. (Author)

Descriptors :   (*AERODYNAMIC CONFIGURATIONS, GUIDANCE), JETS, SPIN STABILIZATION, WEST GERMANY

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE