MASTER/SLAVE FREEDOM ANALYSIS FOR FOLDABLE STRUCTRES

Foldable structures have been of increasing interest for engineers in recent years. The real mecheanics model of pantographs is analyzed with master/slave freedom technique in this paper The element stiffness matrix of pantograph and the free vibration equations under hybrid coordinate are derived. The interface program with the FEM software, SAP, is introduced. Numerical examples show that the present method is correct.