In this paper, a method of data flow modeling for a product design process oriented to data parameter is proposed. The data parameters are defined, which are classified as the basic data parameters and complex data parameters. The mechanism of the mapping relationship between different forms of documents and some basic data parameters, and a data transmission based on parameters, are constructed. Aiming at the characteristics of the iterative design process, the parameters version mechanism including node modification and iteration information is proposed. The data parameters transmission relationships are represented by a parameters network model (PNM) based on a directed graph. Finally, through the table of data parameters mapping onto the workflow node and PNM, the data ports and data links in the data flow model are generated automatically by the program. Validation in the 15-meter-diameter S/Ka frequency band antenna design process of the “Reflector, Back frame and Center part design” data flow model shows that the method can effectively shorten the time of data flow modeling and improve the data transmission efficiency.

To solve the low design efficiency problem of complex product, a product-level rapid modeling method is proposed. Parametric template library is created firstly. Then a hierarchical product assembly model is constructed by the top-down variable design. Lastly product model is generated automatically by using the technologies of position constraints and semantic mapping. The method has been applied to a self-developed modeling system for mesh reflector antennas (MRA). The results show that it can generate the product model rapidly, improve the design efficiency greatly, and provide the model data support for the follow-up analysis, optimization and adjustment process.

For solving the separate problem of electronic equipments structure and electromagnetic design, software system for the multi-field-coupled and multidisciplinary optimization (MDO) of electronic equipments is developed, based on electromechanical coupling theory, using parameterized modeling, MDO technology. The result of applied in reflector antenna and high density case shows that the system can promote analysis and design quality, shorten the design cycle, reduce the cost of design.