【摘要】：隨著計算機(jī)技術(shù)的飛速發(fā)展,CAD在機(jī)械制造行業(yè)應(yīng)用的越來越廣泛。但是CAD軟件的通用性難以滿足各種具體產(chǎn)品設(shè)計的需要,根據(jù)不同的實(shí)際需求,以通用CAD軟件為基礎(chǔ),CAD二次開發(fā)技術(shù)已成為現(xiàn)代產(chǎn)品設(shè)計的重要組成部分。 虛擬樣機(jī)技術(shù)作為新的CAE技術(shù)方法,能夠在物理樣機(jī)制造出來之前,通過建立虛擬樣機(jī)模型方便地修改產(chǎn)品的設(shè)計,不但可以縮短開發(fā)周期,而且設(shè)計質(zhì)量和效率得到了提高。本論文以參數(shù)化設(shè)計和虛擬樣機(jī)技術(shù)相結(jié)合的設(shè)計手段來進(jìn)行減速器的零部件設(shè)計,在減速器的參數(shù)設(shè)計以及仿真分析方面,主要研究的內(nèi)容包括:首先,以功能強(qiáng)大的三維軟件UG作為開發(fā)平臺,深入研究UG二次開發(fā)方法,利用UG二次開發(fā)工具UG/Open Grip實(shí)現(xiàn)了漸開線直齒輪的三維參數(shù)化造型,利用UG/Open API、VC++等技術(shù)開發(fā)設(shè)計了漸開線直齒輪齒輪參數(shù)化設(shè)計系統(tǒng)。在完成漸開線直齒輪的三維模型后,可以創(chuàng)建其它零部件三維模型,并完成減速器的虛擬裝配,對齒輪傳動系統(tǒng)進(jìn)行干涉分析。然后,把UG中建立的減速器的三維模型以Parasolid格式的數(shù)據(jù)導(dǎo)入到ADAMS中。討論ADAMS虛擬樣機(jī)的基本理論,添加各種約束、接觸力、驅(qū)動力矩和負(fù)載,完成虛擬樣機(jī)模型的建立。最后,設(shè)置減速器的虛擬樣機(jī)模型仿真的條件,對虛擬樣機(jī)模型進(jìn)行動力學(xué)仿真分析,分別得出減速器虛擬樣機(jī)各軸的轉(zhuǎn)速和加速度大小與方向,各級輪齒的嚙合力等情況。并根據(jù)實(shí)際設(shè)計減速器的數(shù)據(jù),得出理論計算值,將動力學(xué)仿真分析出的結(jié)果與理論計算值相比較,得出的結(jié)論。
[Abstract]:With the rapid development of computer technology, CAD is more and more widely used in mechanical manufacturing industry. However, the generality of CAD software is difficult to meet the needs of specific product design. According to different practical requirements, CAD secondary development technology based on general CAD software has become an important part of modern product design. As a new method of CAE technology, virtual prototyping can modify the design of product conveniently by establishing virtual prototyping model before the physical prototype is manufactured. It can not only shorten the development period, but also improve the design quality and efficiency. In this paper, the parametric design and virtual prototyping technology are used to design the parts of the reducer. The main contents of this paper are as follows: first of all, Taking the powerful 3D software UG as the development platform, the method of UG secondary development is deeply studied, and the 3D parametric modeling of involute spur gear is realized by UG secondary development tool UG/Open Grip. The parametric design system of involute spur gear is developed by using UG/Open API,VC and other technologies. After the 3D model of involute spur gear is completed, the 3D model of other parts can be created, and the virtual assembly of reducer can be completed, and the interference analysis of gear transmission system can be carried out. Then, the 3D model of the reducer established in UG is imported into ADAMS with the data of Parasolid format. The basic theory of ADAMS virtual prototyping is discussed, and various constraints, contact force, driving torque and load are added to build the virtual prototype model. Finally, the simulation conditions of the virtual prototype model of the reducer are set up, and the dynamic simulation analysis of the virtual prototype model is carried out. The speed and acceleration of each axis of the virtual prototype of the reducer and the meshing force of each gear tooth are obtained respectively. According to the data of the actual design of the reducer, the theoretical calculation value is obtained, and the result of dynamic simulation analysis is compared with the theoretical calculation value, and the conclusion is drawn.
【學(xué)位授予單位】：華北電力大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2011
【分類號】：TH132.46

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