Interactive disassembly approach for assembly sequence planning based on product hierarchical-classification

To reduce the difficulty of Assembly sequence planning (ASP) in the product design and development process, a feasible and practical interactive disassembly approach for ASP based on hierarchical classification was proposed. Through reasonable classification of assembly datasets, the assembly process information could be organized and managed effectively. According to the proposed ideology of the assembly hierarchical classification, two hierarchical-classification rules were defined: axis constraints and coplanar constraint rules. Based on Product Process Resource (PPR), the assembly hierarchy was recombined and its posture matrix was updated by adopting a traverse iterative algorithm. On the basis of the product hierarchy, the human-computer interactive disassembly methodology was utilized to plan the tools and information needed by assembly. The effectiveness and practicability of proposed approach was validated by a typical mechanical product.