【摘要】：本課題主要研究曲柄搖桿機構(gòu)的性能參數(shù)與機構(gòu)尺寸間的關(guān)系,繪制機械性能的相關(guān)圖譜,分析機械性能參數(shù)與機構(gòu)尺寸間的關(guān)系,總結(jié)機構(gòu)尺寸與性能參數(shù)間的一些設(shè)計規(guī)律。平面鉸鏈四桿機構(gòu)在工程實際中有廣泛的應(yīng)用,平面四桿機構(gòu)是平面多桿機構(gòu)及空間多桿機構(gòu)的基礎(chǔ),所以對平面四桿機構(gòu)的設(shè)計研究有著很重要的意義。 通過建立平面連桿機構(gòu)空間模型,用相對尺寸代替實際尺寸,從而簡化尺寸類型,建立全部平面四桿機構(gòu)的尺寸型與空間點位置之間的對應(yīng)關(guān)系。 用圖譜分析得出的桿件尺寸結(jié)果經(jīng)常是一個范圍,為解決實際問題,適應(yīng)實際工作需要,使設(shè)計的連桿尺寸工作性能理想,本論文采用分析約束函數(shù),建立多目標(biāo)函數(shù)的數(shù)學(xué)模型,根據(jù)不同工況對曲柄搖桿機構(gòu)的機械性能要求的側(cè)重點不同,控制調(diào)節(jié)加權(quán)因子數(shù)值,使各子目標(biāo)函數(shù)的重要程度不同,來實現(xiàn)設(shè)計結(jié)果的優(yōu)化處理,得出最終設(shè)計方案。 該論文主要闡述如何繪制能對應(yīng)任意機構(gòu)尺寸的參數(shù)平面區(qū)間圖譜,研究曲柄搖桿機構(gòu)的性能參數(shù)與機構(gòu)尺寸間的關(guān)系,參數(shù)值對機構(gòu)類型及參數(shù)合理性判定等問題,并建立多目標(biāo)函數(shù)的數(shù)學(xué)模型來實現(xiàn)設(shè)計結(jié)果的優(yōu)化處理,使得設(shè)計人員對機構(gòu)的設(shè)計更加方便,設(shè)計結(jié)果更符合實際工作,研究結(jié)果為曲柄搖桿機構(gòu)設(shè)計提供了理論依據(jù)。
[Abstract]:This paper mainly studies the relationship between the performance parameters and the dimensions of the crank rocker mechanism, draws the related graphs of the mechanical properties, and analyzes the relationship between the mechanical performance parameters and the dimensions of the mechanism. Some design rules between mechanism size and performance parameters are summarized. The planar hinge four-bar mechanism is widely used in engineering practice. The planar four-bar mechanism is the foundation of the plane multi-bar mechanism and the spatial multi-bar mechanism, so it is of great significance to design and study the planar four-bar mechanism. By establishing the spatial model of planar linkage mechanism and replacing the actual size with relative dimension, the size type is simplified, and the corresponding relationship between the dimension type of all planar four-bar linkage and the position of space point is established. In order to solve the practical problems and meet the practical needs and make the dimension performance of the designed connecting rod ideal, this paper adopts the analytical constraint function. The mathematical model of multi-objective function is established. According to the different requirements of mechanical performance of crank and rocker mechanism under different working conditions, the value of adjusting weighting factor is controlled and the importance of each sub-objective function is different. To achieve the optimization of the design results, the final design scheme. This paper mainly expounds how to draw the interval map of parameter plane which can correspond to any size of mechanism, study the relationship between the performance parameters of crank and rocker mechanism and the dimension of mechanism, and determine the type of mechanism and the rationality of parameter by parameter value, and so on. The mathematical model of multi-objective function is established to optimize the design result, which makes the designer more convenient for the design of the mechanism, and the design result is more in line with the actual work. The research results provide the theoretical basis for the design of crank rocker mechanism.
【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】：TH112

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 張曉麗,楊建強,常春影,董威;多目標(biāo)模糊優(yōu)化方法及其在工程設(shè)計中應(yīng)用[J];大連理工大學(xué)學(xué)報;2005年03期

2 ;THE DESIGN AND ANALYSIS OF VIBRATION STRUCTURE OF VERTICAL DYNAMIC BALANCING MACHINE[J];Acta Mechanica Solida Sinica;2004年02期

3 盧志珍;對鉸鏈四桿機構(gòu)極位夾角定義問題的探討[J];機械設(shè)計與制造;2005年08期

4 干東英;;國內(nèi)外機構(gòu)學(xué)概況及發(fā)展方向[J];機械傳動;1992年01期

5 吳鑫,褚金奎,吳琛,曹惟慶;帶有預(yù)定時標(biāo)平面四桿機構(gòu)連桿軌跡的尺度綜合[J];機械科學(xué)與技術(shù);1998年06期

6 鄒慧君,藍(lán)兆輝,王石剛,郭為忠;機構(gòu)學(xué)研究現(xiàn)狀、發(fā)展趨勢和應(yīng)用前景[J];機械工程學(xué)報;1999年05期

7 藍(lán)兆輝,鄒慧君;基于軌跡局部特性的機構(gòu)并行優(yōu)化綜合[J];機械工程學(xué)報;1999年05期

8 吳鑫,褚金奎,曹惟慶;帶有預(yù)定時標(biāo)平面四桿剛體導(dǎo)引機構(gòu)尺度綜合的研究[J];機械工程學(xué)報;1999年05期

9 黎明,雷源忠;機械工程學(xué)科“十五”優(yōu)先領(lǐng)域構(gòu)想[J];機械工程學(xué)報;2001年06期

10 王知行，，陳照波，江魯;利用連桿轉(zhuǎn)角曲線進(jìn)行平面連桿機構(gòu)軌跡綜合的研究[J];機械工程學(xué)報;1995年01期

本文編號：2152680