Formalized reasoning method for assembly sequences based on Polychromatic Sets theory.

This paper presents a new formalized reasoning method for assembly sequences generation which reduces the solution space dramatically. Firstly, a polychromatic sets (PS) matrix is introduced to describe the relations between the part-match and freedom; Secondly, the polychromatic sets matrix of entirety and element are used to describe the relations between the parts and assembly constraints; assembly constraint models and connector assembly models are constructed in this phase; then, the solution method for constraint equations is given; and the reasoning algorithm of feasible sequence is presented. Finally, an application case is studied to demonstrate the effectiveness of the method. [ABSTRACT FROM AUTHOR]