烟气轮机动叶片的参数化建模及加工仿真
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摘要
运用NURBS曲线拟合算法将节点插入算法应用到动叶片截面型线造型中,采用UG软件中的NURBS样条曲线构造器功能在多个截面上准确绘制出动叶片的截面曲线造型,并利用NURBS曲面造型模块生成烟气轮机动叶片的实体模型。对零件结构特点进行工艺分析,运用UG的加工模块进行加工仿真,生成刀具轨迹并进行试验加工,为后续烟气轮机动叶片的数控加工提供依据。
Using the NURBS curve fitting algorithm,the knot insertion algorithm is applied to the moving blade section profile modeling,using the software UG NURBS spline curve constructor function,accurate rendering dynamic blade section curve shape in cross section,and generates the entity model of YL type flue gas turbine rotor blade using UG NURBS surface modeling module. According to the structural characteristics of the part of the process analysis,the use of UG processing module machining simulation was carried out to generate the trajectory of props and tested process,provideing the basis for follow-up CNC machining of flue gas turbine moving blade.
Using the NURBS curve fitting algorithm,the knot insertion algorithm is applied to the moving blade section profile modeling,using the software UG NURBS spline curve constructor function,accurate rendering dynamic blade section curve shape in cross section,and generates the entity model of YL type flue gas turbine rotor blade using UG NURBS surface modeling module. According to the structural characteristics of the part of the process analysis,the use of UG processing module machining simulation was carried out to generate the trajectory of props and tested process,provideing the basis for follow-up CNC machining of flue gas turbine moving blade.
引文
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[6]张国华,杨兴强,张彩明.基于权因子的NURBS曲线形状调整[J].计算机辅助设计与图形学学报,2004,16(10):1396-1400.
[7]李丙才,武强强.YL型烟气轮机动叶片五轴联动数控加工的运动模型及编程[J].兰州理工大学学报,2014,40(3):38-43.
[8]饶锡新,傅航,王佳玺等.基于UG的风机叶片参数化建模方法[J].南昌大学学报(工科版),2010,32(4):335-338.
[9]Konign,Saraknosss,Nkolosik.Parametric design of turbine machinery blades[C].The International Conference as a Tool Belgrade,Serbia and Montenegro Institute of Electrical and Electronics Engineers Computer Society,2005:539-542.
[10]杨显宏.基于UGNX7汽轮机叶片的建模与加工[J].制造业自动化,2012,34(6):35-37.
[11]梅小宁,杨树兴.基于UG二次开发的参数化建模方法在优化设计中的应用[J].科技导报(北京),2010,28(3):29-32.
[2]沈守国,徐新成,赵中华.CAD/CAM技术在汽轮机叶片设计与加工中的研究与应用[J].组合机床与自动化加工技术,2013(5):126-127.
[3]李媛,王义文,刘献礼等.基于NURBS的半开式整体叶轮智能建模[J].哈尔滨理工大学学报,2014,19(1):12-15.
[4]朱心雄,等.自由曲线曲面造型技术[M].北京:科学出版社,2000.
[5]孙连邦,周燕飞.基于UG曲线光顺拟合二次开发算法[J].机械科学与技术,2013,32(8):1167-1171.
[6]张国华,杨兴强,张彩明.基于权因子的NURBS曲线形状调整[J].计算机辅助设计与图形学学报,2004,16(10):1396-1400.
[7]李丙才,武强强.YL型烟气轮机动叶片五轴联动数控加工的运动模型及编程[J].兰州理工大学学报,2014,40(3):38-43.
[8]饶锡新,傅航,王佳玺等.基于UG的风机叶片参数化建模方法[J].南昌大学学报(工科版),2010,32(4):335-338.
[9]Konign,Saraknosss,Nkolosik.Parametric design of turbine machinery blades[C].The International Conference as a Tool Belgrade,Serbia and Montenegro Institute of Electrical and Electronics Engineers Computer Society,2005:539-542.
[10]杨显宏.基于UGNX7汽轮机叶片的建模与加工[J].制造业自动化,2012,34(6):35-37.
[11]梅小宁,杨树兴.基于UG二次开发的参数化建模方法在优化设计中的应用[J].科技导报(北京),2010,28(3):29-32.