This paper presents an approach based on the constraints network to support collaborative design. Firstly, from the point
of view of collaborative design, the model of the constraints network for coordination and optimization is studied. Secondly,
a general consistency algorithm is designed to predict conflict and refine the intervals for parameter coordination, which
verify the design stage ... [Show full abstract] early in the process and assist the designers in determining design variables to reduce the multidisciplinary
iterations in collaborative design. Finally, a constraints-network-based parameter optimization model is established, and
the multiobjective optimization approach is presented. The method is demonstrated by a bogie parameter design problem.