Variant design process programming of assembly based on dimension constraint complexity

The implementation process of assembly variant design involves complicated task planning. A reasonable part variant design sequence is imperative for successfully executing assembly variant design which characterizes a dynamic uncertainty reducing process. This paper adopts dimension constraint complexity of part to find the most appropriate sequence of part variant design. Firstly, a dimension constraint network among parts was constructed at dimension level. Then, the dimension constraint complexity of part in dimension constraint network was presented and used as an evidence from which the task complexity of executing part variant design can be measured and further converted to the variant design sequence of part. Finally, a case study demonstrates that dimension constraint complexity can effectively represent the task complexity of part variant design, and leverage part variant design activities allocation at the entire assembly product.