Research And Development Of Rapid Parametric Structure Modeling For Reflector Antenna

Currently,the industry and enterprise are confronted with the new challenge of global market,international manufacture and varieties of requirements. The competition among the enterprises of the time, quality and cost is more and more severe. The development period of new production is the key factor of winning victory in severe competition. Developing the research of parametric modeling on antenna structure can shorten the design periods,save the cost, improve quality.It is important to enhence the capacity of antenna structure design in theroy and applications.This paper describes the development of parametric technology ,explains the function and hiberarchy of the system,introduces the surpport softwares designing the system.With the designing process analysis for case-based reasoning technology and characteristic of reflector antenna structure design, the whole frame and key technology of case-based reasoning for reflector antenna structure design was put forward, such as , case representation,the method of calculating degree of similarity ,searching and adjusting case. The case-based reasoning(CBR) is introduced for structure designing of surface antenna. then experiences of structure designing are taken advantage of in effect and design efficiency was improved. This paper realizes the parametric design of the whole model for round paraboloid antenna using the general CAD software I-Deas.The parametric design for whole modal includes assembly of each separate panel, parametric modeling on the single cylinder and standard(middle cirque and cylinder ) center part, parametric modeling of the brace beam based on the link part with some different cross sections.The whole assembly modal of round reflector antenna can be created automatically in the system.At last, using the database technology,the share data was created and stored for subsequence analysis or optimization.