Application of the DSM to aero pump modular decomposition

The paper presents the application of DSM (Design Structural Matrix) as an alternative viewpoint of conventional project management methods especially for managing complicated products such as design and manufacture aero pumps. In comparison with other modeling methods the first advantage of DSM is a graphical representation of a system/product. In fact it provides a simple, compact, visual, and scalable and readable of system's data. Conventional tools such as CPM (Critical Path Method) and PERT (Program Evaluation and Review Technique) are not suitable for representing information flow, because interdependent activities can not be modeled. DSM is a highly flexible tool to model interdependent activities (or loops); by this model we simply view process in a picture. In the paper in the regard of understanding and decreasing complexity in aero pumps discussed. By putting pump elements in DSM format and formation this model as visual representation, gives better understanding of system complexity, that the process is easily visible in a picture. Besides the ability of DSM in visualize and model and also solve the problems of design have been considered. In the paper aero pump system decomposed to subsystems and elements then by categorizing and analysis and use of software PSM32, the principal circuits are identified and all interactions through moving the rows and columns transferred to main sub diagonal. As a result the elements in one cluster are identified and by tearing the optimal interactions are determined for element inside the cluster.