平面放缩机构的设计与仿真
发布时间：2019-04-15 15:13
【摘要】：平面放缩机构能够对一个由若干剪式基本单元如直杆剪式单元,三角板剪式单元构成的机构进行放大和缩小。放缩机构在很多领域都有着较广的应用前景,它的研究和应用越来越引起人们的关注。 本文首先通过对构成平面放缩机构的两种基本单元直杆剪式单元、三角板剪式单元的分析,详细阐述了剪式放缩机构的构造原理,分别介绍了直杆放缩机构和三角板放缩机构的构造方法,并指出了构造放缩机构时需要满足的条件。 其次在平面放缩机构设计原理的基础上,从应用的角度出发编写了平面图形放缩机构的仿真软件,此软件实现能实现直杆放缩机构和三角板放缩机构的自动设计。直杆放缩机构仿真软件用直线段表示机构杆件,它的图形分析模块可以对图形是否满足对应机构设计条件自动进行判断,运动仿真模块能实现机构的自动设计并可以仿真机构的运动,所设计出的机构示意图同时将机构的不同层次表现出来。对于一些比较复杂的图形,这种自动判断功能以及仿真功能提高了机构设计的效率和可靠性,缩短了制作周期。三角板放缩机构仿真软件可以实现由三角形剪式单元构成的环形放缩机构和蝶形放缩机构的自动仿真。本文详细介绍了软件实现的各个模块以及相关算法。 最后论证了直杆剪式单元和三角板剪式单元结合构成放缩机构所要满足的必要条件。
[Abstract]:The planar scaling mechanism can magnify and shrink a mechanism consisting of a number of shear basic elements such as straight bar shear element and triangular plate shear type element. Zoom mechanism has a wide application prospect in many fields, and its research and application has attracted more and more attention. In this paper, the construction principle of the shear mechanism is described in detail through the analysis of two kinds of basic units, straight bar shear element and triangular plate shear type unit, which constitute the planar scaling mechanism. This paper introduces the construction methods of the straight rod mechanism and the triangular plate mechanism respectively, and points out the conditions to be satisfied in the construction of the mechanism. Secondly, on the basis of the design principle of the planar scaling mechanism, the simulation software of the planar graphic zoom mechanism is compiled from the angle of application. The software can realize the automatic design of the vertical rod scaling mechanism and the trigonometric plate scaling mechanism. The simulation software of straight rod scaling mechanism uses straight segment to represent the mechanism member. Its graphic analysis module can automatically judge whether the graph satisfies the design condition of corresponding mechanism. The motion simulation module can realize the automatic design of the mechanism and can simulate the movement of the mechanism. The schematic diagram of the mechanism can show the different levels of the mechanism at the same time. For some complicated graphics, this automatic judgment function and simulation function can improve the efficiency and reliability of mechanism design and shorten the manufacturing cycle. The simulation software of triangular plate scaling mechanism can realize the automatic simulation of ring scaling mechanism and butterfly scaling mechanism composed of triangular shear element. In this paper, the software implementation of each module and related algorithms are introduced in detail. Finally, the necessary conditions for the scaling mechanism to be formed by the combination of straight-bar shear element and triangular plate-shear element are demonstrated.
【学位授予单位】：北京邮电大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH112
本文编号：2458259
[Abstract]:The planar scaling mechanism can magnify and shrink a mechanism consisting of a number of shear basic elements such as straight bar shear element and triangular plate shear type element. Zoom mechanism has a wide application prospect in many fields, and its research and application has attracted more and more attention. In this paper, the construction principle of the shear mechanism is described in detail through the analysis of two kinds of basic units, straight bar shear element and triangular plate shear type unit, which constitute the planar scaling mechanism. This paper introduces the construction methods of the straight rod mechanism and the triangular plate mechanism respectively, and points out the conditions to be satisfied in the construction of the mechanism. Secondly, on the basis of the design principle of the planar scaling mechanism, the simulation software of the planar graphic zoom mechanism is compiled from the angle of application. The software can realize the automatic design of the vertical rod scaling mechanism and the trigonometric plate scaling mechanism. The simulation software of straight rod scaling mechanism uses straight segment to represent the mechanism member. Its graphic analysis module can automatically judge whether the graph satisfies the design condition of corresponding mechanism. The motion simulation module can realize the automatic design of the mechanism and can simulate the movement of the mechanism. The schematic diagram of the mechanism can show the different levels of the mechanism at the same time. For some complicated graphics, this automatic judgment function and simulation function can improve the efficiency and reliability of mechanism design and shorten the manufacturing cycle. The simulation software of triangular plate scaling mechanism can realize the automatic simulation of ring scaling mechanism and butterfly scaling mechanism composed of triangular shear element. In this paper, the software implementation of each module and related algorithms are introduced in detail. Finally, the necessary conditions for the scaling mechanism to be formed by the combination of straight-bar shear element and triangular plate-shear element are demonstrated.
【学位授予单位】：北京邮电大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH112
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1 张振华;李端玲;;基于蝶形机构的放缩机构的设计及仿真[J];机电产品开发与创新;2009年06期
2 廖启征,李端玲;平面图形放缩机构[J];机械工程学报;2005年08期
相关硕士学位论文 前1条
1 张贞;平面图形放缩机构的设计与仿真[D];北京邮电大学;2006年
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