喷管扩张段旋压模具智能设计系统研究

Investigation of intelligent design system of spinning die for nozzle divergent section

针对液体火箭发动机推力室喷管扩张段旋压成形过程中使用的模具进行了智能设计技术研究。通过调研旋压模具设计实例,提炼出旋压模具的设计规律,建立旋压模具设计技术的专家知识库。利用旋压模具设计知识库中的知识,采用MFC、UG二次开发技术和参数化技术,建立了旋压模具的参数化模型库,实现了旋压模具的智能设计。利用MFC开发了面向对象的简洁操作界面,实现了用户输入产品工艺数据,系统快速输出可用于加工的旋压模具模型的功能。通过实验证明,应用该系统设计的模型加工制造而成的模具旋压出的产品满足合格产品要求。

The study of intelligent design technology was conducted for the spinning die used for nozzle divergent section of the liquid propellant rocket engine thrust chamber. After investigating the examples of spinning die, the design rules of spinning die was refines, and a expert knowledge database which covers the design technology of spinning die was built. According to the knowledge of spinning die design in the knowledge database, a parameterized model base of spinning die was established with MFC, UG secondary development technology and parametrization technology, and the intelligent design of the spinning mould was finally realized. The object-oriented and concise operating interface was developed with MFC to makes it come true that while users input the parameters of the product, the system will immediately output spinning mould model which can be directly used for processing. It's proved by experiments that the products made by the spinning dies designed by the system are eligible.