Study of a mathematical model of a flexible solar array sub-panel assembly (VELSA 2)

Methods and results of an analysis are presented for a flexible communication technology satellite (CTS) solar array sub-panel assembly and its correlation to test results. An approach is proposed for the design verification of large flexible solar arrays. The mathematical model used for the analysis of the blanket behavior is described and the methods applicable to the correlation of the mathematical model to the test results are discussed. The analytical results are given for the initial and the updated mathematical model for on-ground conditions. Dynamic results are provided for on-ground and on-orbit conditions differing from the later defined test conditions. Test enhancements are formulated based on the lack of data identified during the course of the model correlation. Aspects of the sensitivity of the mathematical model to mesh size variations, boundary conditions, global and local stiffness changes, etc. were considered in the updated mathematical model. The latter predicts the test results with a sufficient accuracy (mean error 5%).