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http://dx.doi.org/10.5139/JKSAS.2003.31.9.038

Development of Multi-Purpose Satellite 2 with Deployable Solar Arrays: Part 1. Dynamic Modeling  

Gwak,Mun-Gyu (동국대학교 기계공학과)
Heo,Seok (동국대학교 기계공학과)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.31, no.9, 2003 , pp. 38-45 More about this Journal
Abstract
This research is concerned with the dynamic modeling of the multi-purpose satellite with deployable solar arrays equipped with strain energy hinges(SEH). To this end, we proposed the use of the equivalent torsional spring for the SEH and derived the equations of motion assuming that the satellite and solar arrays are being rigid. We also considered the effect of the support string for the ground experiment model, which has been observed as a critical factor affecting the deployment in the ground experiments. From the numerical simulation results, it is found that solar arrays are deployed in a similar pattern but the hub motions are different because of the support strings. It was concluded that the non-gravity deployment of the solar arrays can be approximately simulated by the ground experimental facility. The effects of the support string are also investigated by varying the length of the string. It was found that the current length of the string is adequate for the ground experiment. Ground experimental results will follow.
Keywords
Strain Energy Hinge; Lagrange's Eq.; Buckling; Solar Array Deployment; One Dimensional Torsional Spring;
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