Accession Number : AD0736147
Title : Modeling of Magnetic Hysteresis.
Descriptive Note : Technical memo.,
Corporate Author : JOHNS HOPKINS UNIV SILVER SPRING MD APPLIED PHYSICS LAB
Personal Author(s) : Whisnant,J. M. ; Anand,D. K. ; Pisacane,V. L. ; Sturmanis,M.
Report Date : JAN 1971
Pagination or Media Count : 86
Abstract : Magnetic hysteresis rods have been used successfully for damping the attitude motions of passively stabilized near-earth satellites. This paper describes the implementation of a model of magnetic hysteresis that is suitable for digital computer simulations of such motions. The model is based on the domain theory of magnetization, which assumes that a shifted rectangular hysteresis loop is associated with each domain. Coefficients used by the model are determined by least-squares fitting data from experimental hysteresis loops. For a type of hysteresis rod commonly in use, it is shown that a simplified version of the model may be used. Results from the theoretical model are compared with experimentally generated loops and show good agreement. (Author)
Descriptors : (*SATELLITE ATTITUDE, CONTROL), MAGNETIC PROPERTIES, HYSTERESIS, DAMPING, MATHEMATICAL MODELS, LOW ORBIT TRAJECTORIES, COMPUTER PROGRAMS
Subject Categories : Electricity and Magnetism
Distribution Statement : APPROVED FOR PUBLIC RELEASE