Order Reduction of Dynamic Models with Deformation-Conserving Mode Selection and Weighting

To address the excessive model order issue in flexible multibody spacecraft dynamic models developed using the hybrid coordinate method, this paper presents a model order reduction algorithm that achieves dimensionality reduction through selective mode shape prioritization and weighted synthesis. First, a multibody dynamic model for a spacecraft with a central rigid body and flexible appendages is established using the principle of virtual power and the hybrid coordinate method. By introducing n