發(fā)布時(shí)間：2018-05-05 10:37

  本文選題：平面度誤差 + 最小區(qū)域法(MZM)��； 參考：《北京理工大學(xué)》2015年博士論文

【摘要】：測(cè)量是制造過(guò)程中的重要一環(huán)，加工的零件在按要求測(cè)量后送到組裝線，通過(guò)測(cè)量確保加工的零部件符合設(shè)計(jì)要求從而使生產(chǎn)的產(chǎn)品滿足設(shè)計(jì)性能。連同其他物理參數(shù)一起，幾何公差在滿足組裝配合要求以及產(chǎn)品性能方面起到重要作用。 測(cè)量誤差是測(cè)量值與真值的差，而現(xiàn)實(shí)中無(wú)法獲得測(cè)量參數(shù)的真值，而誤差分析是一種控制測(cè)量誤差的有效方法。測(cè)量不確定度用來(lái)針對(duì)測(cè)量誤差問(wèn)題對(duì)測(cè)量結(jié)果進(jìn)行評(píng)價(jià)。新一代產(chǎn)品幾何技術(shù)規(guī)范(GPS)是一個(gè)幾何規(guī)范鏈連接幾何產(chǎn)品周期全過(guò)程，包括研究、開(kāi)發(fā)、設(shè)計(jì)、生產(chǎn)、檢驗(yàn)/驗(yàn)證其交貨、使用和維護(hù)。 本文提出了角度元件如棱鏡、多角形、量塊以及類似的部件的角度測(cè)量新方法。新方法基于最小區(qū)域平面以及圓周封閉原則。最小區(qū)域平面根據(jù)ISO12781-1標(biāo)準(zhǔn)通過(guò)優(yōu)化技術(shù)利用最小區(qū)域法確定。這種新方法可以測(cè)量角度參數(shù)如的角度元件各面之間、步進(jìn)角和累積步進(jìn)角的誤差等。相對(duì)于其它測(cè)量方法如利用自準(zhǔn)直儀和干涉儀的測(cè)量方法，新方法顯示了其具有的簡(jiǎn)單和合理的有點(diǎn)。 和其他類型的形狀誤差一樣，，平面度誤差是影響零件功能的一個(gè)重要特性，因此角度測(cè)量需要考慮角平面的平面度的影響。本文還給出了平面度誤差測(cè)量的遺傳算法的具體代碼以及利用最小區(qū)域發(fā)確定最小區(qū)域平面的方法。 本文借助于平面度的評(píng)價(jià)方法給出了基于最小區(qū)域平面的角元件的角度定義，建立了測(cè)量平面度、最小區(qū)域平面和各種角參數(shù)的最小區(qū)域法數(shù)學(xué)模型。 本文研究了平面度誤差和角度誤差的不確定度誤差的評(píng)價(jià)方法，利用新一代產(chǎn)品幾何技術(shù)規(guī)范標(biāo)準(zhǔn)對(duì)平面度誤差和角度誤差進(jìn)行了驗(yàn)證。建立了確定傳遞系數(shù)的數(shù)學(xué)方法。平面度誤差、平直度平面的確立，角度誤差及其評(píng)價(jià)分析都在新一代產(chǎn)品幾何技術(shù)規(guī)范標(biāo)準(zhǔn)框架之內(nèi)。
[Abstract]:Measurement is an important part in the manufacturing process. The machined parts are measured and sent to the assembly line according to the requirements. Through the measurement, the manufactured parts meet the design requirements so that the products can meet the design performance. Together with other physical parameters, geometric tolerances play an important role in meeting assembly requirements and product performance. The measurement error is the difference between the measurement value and the true value, but the true value of the measurement parameter can not be obtained in reality, and error analysis is an effective method to control the measurement error. Measurement uncertainty is used to evaluate the measurement results in view of measurement errors. GPSs is a whole process of geometric product cycle, including research, development, design, production, inspection / verification, delivery, use and maintenance. A new method for angle measurement of angular elements such as prism, polygonal, measuring blocks and similar components is presented in this paper. The new method is based on the principle of minimum region plane and circular closure. The minimum region plane is determined by using the minimum region method according to the ISO12781-1 standard. The new method can be used to measure the errors of angle parameters such as the error of the angle elements, the step angle and the cumulative step angle. Compared with other measurement methods such as autocollimator and interferometer, the new method shows its simplicity and rationality. Like other types of shape errors flatness error is an important characteristic that affects the function of parts so the influence of angle plane on flatness should be considered in angle measurement. In this paper, the code of genetic algorithm for flatness error measurement and the method of using minimum region to determine the minimum region plane are given. In this paper, the angle definition of angle element based on minimum area plane is given by means of flatness evaluation method, and the mathematical model of minimum region method for measuring flatness, minimum area plane and all kinds of angle parameters is established. In this paper, the evaluation method of uncertainty error of flatness error and angle error is studied, and the flatness error and angle error are verified by the new product geometric specification standard. A mathematical method for determining the transfer coefficient is established. The flatness error, flatness plane, angle error and its evaluation analysis are all within the framework of the new product geometric technical specification standard.
【學(xué)位授予單位】：北京理工大學(xué)
【學(xué)位級(jí)別】：博士
【學(xué)位授予年份】：2015
【分類號(hào)】：TG82

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 崔長(zhǎng)彩;黃富貴;張認(rèn)成;李兵;;粒子群優(yōu)化算法及其在圓度誤差評(píng)定中的應(yīng)用[J];計(jì)量學(xué)報(bào);2006年04期

本文編號(hào)：1847368