介绍了北京钢铁研究总院采用计算机仿真技术与计算机辅助设计技术，开发出具有优化功能的钢管冷拔过程CAD系统通用软件。
The paper introduces CAD system of steel tube cold drawing process which is a software with optimum function developed by Iron & steel General Institute on basis of computer imitation technology.
讨论了模糊pid控制器的设计方法，同时利用MATLAB软件中的模糊控制工具箱进行了系统的辅助设计与仿真实验。
A designing method of fuzzy PID controller is given, then an example of how to design and simulate the system by using the software MATLAB is introduced.
计算结果表明该优仁设计仿真软件在燃油供给系统的设计及主要结构参数匹配过程中具有良好的辅助作用。
The computation results show that the simulation software will be good aid in the process of FIS design and the matching of the main structural parameters.
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