Ivahnenko

This article proposes a new approach to development of assembly diagrams and assembly structure. The authors show that the basic design properties affecting feasibility of these diagrams can be presented as a preorder relation on a set of parts of the product. The symmetrical part of the preorder is an equivalence relation describing accessory of parts to assemblies. Factorization of preorder on its symmetric part gives a partial order on the quotient set. This partial order defines a temporary ranking of parts and components during assembly. The authors propose a procedure of selection of rational assembly sequence which includes sequential afterordering of the partial order.