基于ANSYS组合涡旋型线参数化设计与涡旋齿温度场分析
发布时间：2018-08-26 16:27
【摘要】：随着工业的快速发展，以效率高、能耗小、结构紧凑、运行平稳等优势而著称的涡旋压缩机的应用也越来越广泛。但近年来，传统的单一型线涡旋压缩机因自身固有结构的局限性，使得其面积利用率与工作效率等方面受到制约。因此使用新型组合型线提高涡旋压缩机的整体性能成为解决这一问题的有效方法。 本文首先论述了组合型线的啮合条件、通用型线控制方程的推导及平面曲线理论，，绘制了圆弧—线段等壁厚组合型线，并对圆弧—线段等壁厚组合型线涡旋盘与圆渐开线涡旋盘进行基本比较。然后在组合型线理论的基础上，利用ANSYS的APDL对涡旋盘的结构参数编程建立了圆渐开线涡旋盘与组合型线涡旋盘的参数化分析模型。设计结果表明，通过对结构的关键参数进行设置和提取，利用关系式重新赋值就可以得到涡旋盘的不同分析模型。由此可见，基于ANSYS的涡旋盘参数化设计可以有效地解决利用三维CAD设计软件建立的涡旋盘模型导入ANSYS中作为分析模型无法再生的问题，提高了涡旋压缩机的设计分析效率。 此外，本文利用ANSYS对已建立的圆弧—线段等壁厚组合型线涡旋盘与圆渐开线涡旋盘参数化有限元分析模型在不同温度和温差作用下的应力与变形进行了定量分析与计算，设计结果表明，两涡旋盘在不同温度与温差下的应力与变形基本相同，同时组合型线涡旋盘结构简单，易加工，具有较大的容积利用率和内容积比，具有较高的综合特性。因此利用圆弧—线段等壁厚组合型线来优化涡旋压缩机的整体性能是完全可行的。
[Abstract]:With the rapid development of industry, the application of scroll compressor which is famous for its high efficiency, low energy consumption, compact structure and smooth operation is more and more extensive. But in recent years, the traditional single-line scroll compressor has been restricted in area utilization and working efficiency because of its inherent structure limitations. Improving the overall performance of scroll compressors is an effective way to solve this problem.
In this paper, the meshing condition of the combined profile, the derivation of the general profile control equation and the theory of plane curve are discussed firstly. The arc-line section equal wall thickness combined profile is drawn, and the arc-line section equal wall thickness combined profile scroll disk and the circular involute scroll disk are basically compared. Then on the basis of the combined profile theory, the ANSYS A is used. The parameterized analysis model of circular involute and combined profile scroll disk is established by programming the structural parameters of the scroll disk with PDL. The design results show that different analysis models of the scroll disk can be obtained by setting and extracting the key structural parameters and reassigning them with the relational formula. Digital design can effectively solve the problem that the scroll disk model established by 3D CAD software can not be regenerated when it is imported into ANSYS as the analysis model, and improve the design and analysis efficiency of scroll compressor.
In addition, the stress and deformation of the parameterized finite element analysis model of the arc-line equal wall thickness linear vortex disk and the circular involute vortex disk under different temperatures and temperature differences are quantitatively analyzed and calculated by ANSYS. The design results show that the stress and deformation base of the two vortex disks under different temperatures and temperature differences. At the same time, the combined profile scroll disc has the advantages of simple structure, easy processing, large volume utilization ratio and content-to-volume ratio, and high comprehensive characteristics.
【学位授予单位】：兰州理工大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH455
[Abstract]:With the rapid development of industry, the application of scroll compressor which is famous for its high efficiency, low energy consumption, compact structure and smooth operation is more and more extensive. But in recent years, the traditional single-line scroll compressor has been restricted in area utilization and working efficiency because of its inherent structure limitations. Improving the overall performance of scroll compressors is an effective way to solve this problem.
In this paper, the meshing condition of the combined profile, the derivation of the general profile control equation and the theory of plane curve are discussed firstly. The arc-line section equal wall thickness combined profile is drawn, and the arc-line section equal wall thickness combined profile scroll disk and the circular involute scroll disk are basically compared. Then on the basis of the combined profile theory, the ANSYS A is used. The parameterized analysis model of circular involute and combined profile scroll disk is established by programming the structural parameters of the scroll disk with PDL. The design results show that different analysis models of the scroll disk can be obtained by setting and extracting the key structural parameters and reassigning them with the relational formula. Digital design can effectively solve the problem that the scroll disk model established by 3D CAD software can not be regenerated when it is imported into ANSYS as the analysis model, and improve the design and analysis efficiency of scroll compressor.
In addition, the stress and deformation of the parameterized finite element analysis model of the arc-line equal wall thickness linear vortex disk and the circular involute vortex disk under different temperatures and temperature differences are quantitatively analyzed and calculated by ANSYS. The design results show that the stress and deformation base of the two vortex disks under different temperatures and temperature differences. At the same time, the combined profile scroll disc has the advantages of simple structure, easy processing, large volume utilization ratio and content-to-volume ratio, and high comprehensive characteristics.
【学位授予单位】：兰州理工大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH455
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