基于UG二次开发工具UG/OPEN API和NX OPEN C/C++二次开发功能,结合C/C++编程语言在VS2008平台创建涡扇发动机风扇叶片叶身的中弧面参数化模型和有限元参数化模型,并进行仿真分析。利用壳单元进行分析,对生成的NX Nastran输入输出文件进...基于UG二次开发工具UG/OPEN API和NX OPEN C/C++二次开发功能,结合C/C++编程语言在VS2008平台创建涡扇发动机风扇叶片叶身的中弧面参数化模型和有限元参数化模型,并进行仿真分析。利用壳单元进行分析,对生成的NX Nastran输入输出文件进行数据处理,完成有限元模型的反向迭代过程。该过程能够获得叶片结构的预变形,使得到的叶片模型在外载荷和边界约束条件下,得到与原始模型相互重合的叶片模型。展开更多
Parametric modeling of the impeller which drove a small wind device was built by knowledge fusion technology.NACA2410 airfoil blade was created by KF language.Using technology of UG/KF secondary development for the au...Parametric modeling of the impeller which drove a small wind device was built by knowledge fusion technology.NACA2410 airfoil blade was created by KF language.Using technology of UG/KF secondary development for the automatic modeling of wind turbine blade,the program can read in the airfoil data files automatically and the impeller model entity can be generated automatically.In order to modify the model,the aerodynamic characteristics of the impeller were analyzed for getting aerodynamic parameters by Fluent.The maximum force torch and best parameters of impeller were calculated.A physical prototype impeller was manufactured and the correctness of the design was verified,and the error of force torch between simulation and experimental results is about 10%.Parameterization design of the impeller model greatly improves the efficiency of modeling and flexibility of the CAD system.展开更多
文摘基于UG二次开发工具UG/OPEN API和NX OPEN C/C++二次开发功能,结合C/C++编程语言在VS2008平台创建涡扇发动机风扇叶片叶身的中弧面参数化模型和有限元参数化模型,并进行仿真分析。利用壳单元进行分析,对生成的NX Nastran输入输出文件进行数据处理,完成有限元模型的反向迭代过程。该过程能够获得叶片结构的预变形,使得到的叶片模型在外载荷和边界约束条件下,得到与原始模型相互重合的叶片模型。
基金Project(gjd-09041)supported by the Natural Science Foundation of Shanghai Municipal Education Commission,China
文摘Parametric modeling of the impeller which drove a small wind device was built by knowledge fusion technology.NACA2410 airfoil blade was created by KF language.Using technology of UG/KF secondary development for the automatic modeling of wind turbine blade,the program can read in the airfoil data files automatically and the impeller model entity can be generated automatically.In order to modify the model,the aerodynamic characteristics of the impeller were analyzed for getting aerodynamic parameters by Fluent.The maximum force torch and best parameters of impeller were calculated.A physical prototype impeller was manufactured and the correctness of the design was verified,and the error of force torch between simulation and experimental results is about 10%.Parameterization design of the impeller model greatly improves the efficiency of modeling and flexibility of the CAD system.
