Design-oriented virtual design environment of flight control system was established. The virtual design environment had a three-level structure. The top level was operations management based on database technology, in which product data management(PDM) systems were used to manage design documents, product configurations, workflow and design process of virtual prototype(VP). The middle level was VP technology in which VP of redundant flight control computers, sensors and actuators were provided. The bottom level was environments supporting for man-in-the-loop simulation of flight control systems. The key technology was analyzed to realize the function of each level. The parameters of virtual prototype of redundant flight control computers(RFCC-VP) were discussed. With different parameters, architecture and performance of RFCC-VP were different. Design processes of RFCC-VP were the processes to determinate the parameters of RFCC-VP. Validation of RFCC-VP was accomplished in the environments, and RFCC-VP can be built according to its major parameters such as architecture, performance and price.
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