Solving 3D Assembly Geometric Constraints by DOF Reduction Analysis

3D geometric constraint solving is of great significance to assemble design, geometric modeling, kinematic analysis and so on. Based on analyzing the mating constraints of rigid body, we bring forward the DOF reduction algorithm to get its feasible assembly location satisfying the constraining conditions quite easily. This algorithm solves the DOF computing problem in 3D space directly, avoiding the combination explosion in some reasoning processes.