螺杆式鼓风机可视化设计技术的研究
摘要
螺杆式鼓风机是一种同时具备螺杆压缩机与罗茨鼓风机优点的新型鼓风机,可广泛应用于工业领域多种气体的输送。可视化设计是一种新型的CAD设计方式,通过开展螺杆式鼓风机可视化设计研究,可以大大提高设计质量和运行可靠性。
论文在分析对比罗茨鼓风机和螺杆压缩机各自特点的基础上,对螺杆式鼓风机的基本结构、特点、工作原理作了详细的描述,为论文的可视化设计技术的研究作铺垫。
转子的型线设计是螺杆式鼓风机设计的核心。为了对转子型线设计提供理论依据,论文对螺杆式转子的平面啮合原理、坐标变换以及型线参数与转子几何参数之间的关系作了详细描述。
在建立转子端面型线数据结构的基础上,采用XML方式实现了转子端面型线转子的描述。对机壳的结构特征和结构参数进行了深入分析。以Visual Basic和Solid Works API为开发工具,开发软件实现了转子和机壳三维可视化模型的自动生成。从而为转子与转子的啮合校验、转子与机体的吻合校验提供了有效支持。
利用有限元技术,可以有效地分析机体结构强度。研究了利用SolidWorks有限元模块COSMOSWorks进行有限元分析的步骤和方法。在此基础上,对螺杆式鼓风机机体进行了结构强度的可视化分析和校验。
在SolidWorks环境下利用装配造型技术,建立螺杆式鼓风机的三维装配可视化模型。提出了基于SolidWorks环境的三种动态图形仿真技术方案,利用COSMOS Motion图形动态仿真技术,对转子在机壳内部的啮合进行了模拟,实现了内部转子的动态啮合仿真。在SolidWorks Animator的支持下,形象直观地进行了螺杆式鼓风机拆卸动画模拟。
The screw blower is a new blower with the virtues of both screw compressor and roots blower, which can be applied for many kinds of gas transfering in the industry fields. Visualization design is a new CAD approach method. Through studies on the visualization design to the screw blower, the design efficiency and the operational reliability of the blower can be improved greatly.
On the basis of analyzing and contrasting the respective features of root blower and screw compressor, the paper described the basic structure characteristics and work principle, which was considered as the theory basis of the blower visualization design technology.
The rotor profile design was the key issue of screw blower design. In order to provide theory support for the rotor profile design, the paper introduced the engagement theory, coordinate conversion, the relationship between the profile parameters and the geometric parameters of the rotors.
On the basis of analyzing data structure of the rotor profile, a XML file was used to describe rotor profile. With Visual Basic and SolidWorks API as the developing tools, the software was developed to generate automatically three-dimension visualization models of the blower rotor and housing, which could provide effective support to check out the mesh between the rotors and inosculation between the rotors and the housing.
The structure strength of the blower housing could be analyzed availably by finite element technology. The analyzing steps and methods were studied by exploiting the finite element module—COSMOSWorks of SolidWorks to carry on the finite element analysis. Visualization analysis of the structure strength was implemented on the blower housing.
A three-dimension assembly visualization model of screw blower was built by assembly modeling technology under SolidWorks environment.
Three kinds of dynamic graphical simulation technology were put forward based on SolidWorks. The meshing simulation of the rotors in the housing was realized by the dynamic graphical simulation tool —COSMOS Motion. The animation simulation of the screw blower was executed visually and intuitively under the support of SolidWorks Animator.
论文在分析对比罗茨鼓风机和螺杆压缩机各自特点的基础上,对螺杆式鼓风机的基本结构、特点、工作原理作了详细的描述,为论文的可视化设计技术的研究作铺垫。
转子的型线设计是螺杆式鼓风机设计的核心。为了对转子型线设计提供理论依据,论文对螺杆式转子的平面啮合原理、坐标变换以及型线参数与转子几何参数之间的关系作了详细描述。
在建立转子端面型线数据结构的基础上,采用XML方式实现了转子端面型线转子的描述。对机壳的结构特征和结构参数进行了深入分析。以Visual Basic和Solid Works API为开发工具,开发软件实现了转子和机壳三维可视化模型的自动生成。从而为转子与转子的啮合校验、转子与机体的吻合校验提供了有效支持。
利用有限元技术,可以有效地分析机体结构强度。研究了利用SolidWorks有限元模块COSMOSWorks进行有限元分析的步骤和方法。在此基础上,对螺杆式鼓风机机体进行了结构强度的可视化分析和校验。
在SolidWorks环境下利用装配造型技术,建立螺杆式鼓风机的三维装配可视化模型。提出了基于SolidWorks环境的三种动态图形仿真技术方案,利用COSMOS Motion图形动态仿真技术,对转子在机壳内部的啮合进行了模拟,实现了内部转子的动态啮合仿真。在SolidWorks Animator的支持下,形象直观地进行了螺杆式鼓风机拆卸动画模拟。
The screw blower is a new blower with the virtues of both screw compressor and roots blower, which can be applied for many kinds of gas transfering in the industry fields. Visualization design is a new CAD approach method. Through studies on the visualization design to the screw blower, the design efficiency and the operational reliability of the blower can be improved greatly.
On the basis of analyzing and contrasting the respective features of root blower and screw compressor, the paper described the basic structure characteristics and work principle, which was considered as the theory basis of the blower visualization design technology.
The rotor profile design was the key issue of screw blower design. In order to provide theory support for the rotor profile design, the paper introduced the engagement theory, coordinate conversion, the relationship between the profile parameters and the geometric parameters of the rotors.
On the basis of analyzing data structure of the rotor profile, a XML file was used to describe rotor profile. With Visual Basic and SolidWorks API as the developing tools, the software was developed to generate automatically three-dimension visualization models of the blower rotor and housing, which could provide effective support to check out the mesh between the rotors and inosculation between the rotors and the housing.
The structure strength of the blower housing could be analyzed availably by finite element technology. The analyzing steps and methods were studied by exploiting the finite element module—COSMOSWorks of SolidWorks to carry on the finite element analysis. Visualization analysis of the structure strength was implemented on the blower housing.
A three-dimension assembly visualization model of screw blower was built by assembly modeling technology under SolidWorks environment.
Three kinds of dynamic graphical simulation technology were put forward based on SolidWorks. The meshing simulation of the rotors in the housing was realized by the dynamic graphical simulation tool —COSMOS Motion. The animation simulation of the screw blower was executed visually and intuitively under the support of SolidWorks Animator.
引文
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[6]Jim X.Chen.Data Visualization and Virtual Reality.Handbook of Statistics,2005,24:539-563
[7]刘志军,李志义,喻健良.过程机械.化学工业出版社,2007
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[11]SolidWorks公司.SolidWorksAPI二次开发.北京:机械工业出版社,2005
[12]J.P.Hao,Y.L.Yu,Q.Xue.A maintainability analysis visualization system and its development under the AutoCAD environment.Materials Processing Technology,2002,3(129):277-282
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[14]D.Zaytsev,C.A.Infante Ferreira.Profile generation method for twin screw compressor rotors based on the meshing line.International Journal of Refrigeration,2005,5(28):744-755
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[17]Ahmed Kovacevic,Nikola Stosic,Ian K.Smith.Numerical simulation of combined screw compressor-expander machines for use in high pressure refrigeration systems.Simulation Modelling Practice and Theory,2006,8(14):1143-1154
[18]Andre G.P.Brown.Visualization as a common design language:connecting art and science.Automation in Construction,2003,6(12):703-713
[19]H.Y.K.Lau,K.L.Mak,M.T.H.Lu.A virtual design platform for interactive product design and visualization.Materials Processing Technology,2003,(139):402-407
[20]F.L.Tan,S.C.Fok.Visualization of the casting process through computer animation.Materials Processing Technology,1996,1(57):201-205
[21]江洪,魏峥,王涛威.SolidWorks二次开发实例解析.北京:机械工业出版社,2004
[22]Y.Tang and J.S.Fleming.螺杆压缩机几何特性的计算机辅助分析.压缩机技术,1994,6:28-33
[23]穆安乐,郗向儒,马建辉,张西宁.螺杆转子啮合过程动态仿真.机床与液压,2003,5:59-61
[24]王哲,王知行.NURBS曲线、曲面造型过程的可视化设计.机械设计,1999,5:13-15
[25]王宗彦,吴淑芳,秦慧斌等.SolidWoks机械产品高级开发技术.北京:北京理工大学出版社.2005
[26]陶元芳,谢文宁.起重机起升机构可视化CAD软件开发方法研究.中国工程机械学报,2007,2:152-155
[27]王昌荣,屈福政.汽车起重机伸缩臂交互可视化设计.起重运输机械,2007,6:19-21
[28]彭玉洁,潘桂华.齿轮泵参数化设计及其可视化仿真实现.液压气动与密封,2000,6:21-24
[29]陶嵘,孙燎原.采煤机滚筒可视化CAD系统的开发.煤矿机电,2003,5:81-82
[30]王旭刚,昂海松.计算机辅助导弹外形设计与三维可视化方法研究.微计算机信息,2005,17:140,145-146
[31]熊烽,宾鸿赞.复杂形状刀具设计的三维可视化.工具技术,2002,4:18-21
[32]姚继权,李晓豁,李国威.刨齿刀的三维可视化设计.工程设计学报,2007,5:389-391
[33]缪道平,吴正业.制冷压缩机.北京:机械工业出版社,2001
[34]夏链,韩江,方兴,赵韩.螺旋转子的三维数学建模及CAD/CAM技术研究.农 业机械学报,2005,36(8):162-164
[35]Ligang Yao,ZhongheYe,Jian S.Dai,Haiyi Cai.Geometric analysis and tooth profiling of a three-lobe helical rotor of the Roots blower.Materials Processing Technology,2005,2(170):259-267
[36]Jay Richman.Vacuum Blowers.Handbook of Vacuum Science and Technology,1998:97-115
[37]蒋红斌.SolidWorks2006中文版基础应用与实例分析.北京:机械工业出版社,2005
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