NASA NTRS · 20220008680
A Flexible Multibody Framework for Space Launch System Liftoff with Umbilical Separations
Abstract
ICPSU clearances to the lifting SLS vehicle were computed utilizing a coupled system nonlinear simulation approach in order to accurately capture the impact of system flexibilities, SLS forcing functions, pad separation (twang), ML dynamics and timings • i.e., integrate ICPSU model into a SLS nonlinear Coupled Loads Analysis (CLA) This required utilizing a flexible multibody framework for the CLA and the integration of large displacements/rotations capabilities into that CLA • Gantry rotation • Disconnect and retraction of flexible hoses
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Arya Majed, Joel Sills, Edwin Henkel. A Flexible Multibody Framework for Space Launch System Liftoff with Umbilical Separations. https://ntrs.nasa.gov/citations/20220008680
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