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Date of Publication:2014-01-01

Journal:强度与环境

Issue:1

Page Number:10-16

ISSN No.:1006-3919

Abstract:Vibration mode Attitude Control System for mode shape slope has been a primary issue of con-cern. In this paper, we propose a hybrid modeling method of combination equivalent beam with three-dimensional finite element. This approach exposits a conclusion, where local stiffness of structure have effects on mode shape slope of Inertial components installation location. Based on modal analysis in multiple conditions,the stiffness of opening cabin reinforcing beam,section geometry parameter of cross beam,stiffness of fixed support and shell thickness which are discussed the effects on mode shape and mode shape slope of Attitude Control System. The conclusion of this article may be bentfit to simplification of dynamic models and design of Attitude Control System.

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