Analysis of Disturbance Properties of Solar Array Drive Assembly in Different Sub-Divisions Drive

DOI

10.2991/icemie-16.2016.32How to use a DOI?

Keywords

micro-vibrations; solar array drive assembly (sada); active vibration; structural vibration; sub-division number; beat number; reduction ratio

Abstract

The micro-vibrations, generated by Solar Array Drive Assembly (SADA), of satellite can extensively alter and reduce its imaging quality as well as pointing direction precision. The present work aims to analyze the active and structural vibration disturbances of SADA driven in two different kinds of sub-division number (32 and 64) through theoretical analysis and experimentation. The considered drive mechanism is a two phase and four beat hybrid stepper motor. The formulations to calculate frequencies, forces and moments demonstrated by SADA, operating with various sub-division numbers, are derived leading to its comprehensive disturbance model. The developed mathematical expressions contain information related to period of input of electric pulse signal, solar array speed, number of rotor teeth, reduction ratio, amplitude coefficients, phase of disturbance force, beat number and sub-divisions. In order to validate the theoretical results, amplitude of disturbance forces and moments, produced by SADA driving no load / dead load, is acquired by using a rigid force / moment test platform. The obtained results verify that increase in sub-division number from 32 to 64 leads to reduction in disturbance force and moment generated by SADA, enhances its stability and smoothen the drive. The research work can find good deal of its applicability for drive circuit designing and vibration damping study of SADA.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Mariyam Sattar
AU  - Cheng Wei
AU  - Jiangpan Chen
AU  - Asif Israr
PY  - 2016/04
DA  - 2016/04
TI  - Analysis of Disturbance Properties of Solar Array Drive Assembly in Different Sub-Divisions Drive
BT  - Proceedings of the 2016 International Conference on Electrical, Mechanical and Industrial Engineering
PB  - Atlantis Press
SP  - 129
EP  - 132
SN  - 2352-5401
UR  - https://doi.org/10.2991/icemie-16.2016.32
DO  - 10.2991/icemie-16.2016.32
ID  - Sattar2016/04
ER  -