本文選題：平面連桿機(jī)構(gòu)　切入點(diǎn)：運(yùn)動(dòng)分析　出處：《東北大學(xué)》2012年碩士論文　論文類(lèi)型：學(xué)位論文

【摘要】：平面連桿機(jī)構(gòu)全部采用低副連接,其結(jié)構(gòu)簡(jiǎn)單易于制造,結(jié)實(shí)耐用,耐磨損。平面連桿機(jī)構(gòu)可以實(shí)現(xiàn)多種運(yùn)動(dòng)規(guī)律,并且可以通過(guò)改變機(jī)構(gòu)中各桿件長(zhǎng)度,方便地改變機(jī)構(gòu)的運(yùn)動(dòng)規(guī)律和性能,因而連桿機(jī)構(gòu)在各種機(jī)械行業(yè)中被廣泛的應(yīng)用。 由于連桿機(jī)構(gòu)的零件在加工和裝配過(guò)程中不可避免地存在制造誤差和裝配誤差,連桿的傳動(dòng)鏈也比較長(zhǎng),這些誤差會(huì)累加,必然會(huì)對(duì)連桿機(jī)構(gòu)的運(yùn)動(dòng)特性產(chǎn)生影響,造成偏離理想情況下的位置誤差,影響機(jī)構(gòu)的傳動(dòng)質(zhì)量。因此,開(kāi)展對(duì)平面連桿機(jī)構(gòu)的運(yùn)動(dòng)誤差分析有著較大實(shí)際意義。 目前所見(jiàn)到的多數(shù)機(jī)構(gòu)誤差分析方法,一般是只針對(duì)某一具體機(jī)構(gòu)進(jìn)行運(yùn)動(dòng)誤差分析,分析方法不具有通用性。本文在平面連桿機(jī)構(gòu)基本桿組法運(yùn)動(dòng)分析的基礎(chǔ)上,考慮桿長(zhǎng)誤差和裝配誤差以及主動(dòng)件轉(zhuǎn)角誤差,采用微分法,對(duì)運(yùn)動(dòng)分析中的位置方程全微分,推導(dǎo)出了連桿機(jī)構(gòu)位置誤差表達(dá)式�；赩isual C++6.0編制了桿組誤差分析程序,并通過(guò)建立界面進(jìn)行程序封裝。開(kāi)發(fā)平面連桿機(jī)構(gòu)的運(yùn)動(dòng)誤差分析軟件。該軟件不是針對(duì)一種平面連桿機(jī)構(gòu)進(jìn)行誤差分析,而是,可以根據(jù)平面連桿機(jī)構(gòu)的組成,通過(guò)調(diào)用相應(yīng)的桿組程序,而求得平面連桿機(jī)構(gòu)的位置誤差,并以窗口的形式顯示運(yùn)動(dòng)分析線(xiàn)圖、運(yùn)動(dòng)誤差分析線(xiàn)圖。軟件交互性良好。具有一定的通用性。
[Abstract]:The planar linkage mechanism all adopts the low pair connection, its structure is simple and easy to manufacture, strong and durable, wear-resistant. The planar linkage mechanism can realize a variety of motion laws, and can change the length of each member in the mechanism. It is convenient to change the movement law and performance of the mechanism, so the linkage mechanism is widely used in various mechanical industries. Because manufacturing errors and assembly errors inevitably exist in the machining and assembling process of connecting rod mechanism, and the transmission chain of connecting rod is also relatively long, these errors will accumulate, which will inevitably have an impact on the kinematic characteristics of the linkage mechanism. Therefore, it is of great practical significance to analyze the kinematic error of the planar linkage mechanism because of its deviation from the ideal position error and affect the transmission quality of the mechanism. At present, most of the mechanism error analysis methods are generally aimed at a specific mechanism, but the analysis method is not universal. In this paper, based on the kinematic analysis of the basic bar group method of planar linkage mechanism, Considering the error of rod length and assembly and the error of rotation angle of active part, the differential method is used to fully differential the position equation in motion analysis, and the expression of position error of linkage mechanism is deduced. Based on Visual C 6. 0, the program of error analysis of rod group is programmed. The software of kinematic error analysis of planar linkage mechanism is developed. The software is not for error analysis of a planar linkage mechanism, but can be based on the composition of planar linkage mechanism. The position error of the planar linkage mechanism is obtained by calling the corresponding rod group program, and the motion analysis diagram and the motion error analysis diagram are displayed in the form of window. The software has good interactivity and has certain generality.
【學(xué)位授予單位】：東北大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類(lèi)號(hào)】：TH112

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本文編號(hào)：1650428