發(fā)布時(shí)間：2019-02-13 02:42

【摘要】：針對(duì)傳統(tǒng)動(dòng)平衡方法中所用的振動(dòng)信息,都是用一個(gè)傳感器采自轉(zhuǎn)子的單向信號(hào),存在的測(cè)量誤差問題,將全矢譜理論和轉(zhuǎn)子動(dòng)平衡方法相結(jié)合,充分利用轉(zhuǎn)子振動(dòng)的全方位信息,對(duì)轉(zhuǎn)子的不平衡故障進(jìn)行診斷,并在影響系數(shù)法的基礎(chǔ)上,提出一種高精度的全矢動(dòng)平衡方法,通過理論分析和實(shí)驗(yàn),對(duì)其平衡精度和平衡效果進(jìn)行研究,最后開發(fā)出相應(yīng)的現(xiàn)場(chǎng)動(dòng)平衡儀器。本論文的研究工作主要包括： 1.介紹了全矢譜技術(shù)在不平衡故障診斷中的應(yīng)用,提出了全矢動(dòng)平衡方法的概念。將轉(zhuǎn)子不平衡故障頻率特征和全矢譜技術(shù)相結(jié)合,能夠?qū)D(zhuǎn)子的不平衡故障進(jìn)行更可靠、更準(zhǔn)確的監(jiān)測(cè)和診斷；以轉(zhuǎn)子的全矢不平衡響應(yīng)作為測(cè)量項(xiàng),既避免了傳統(tǒng)單通道信息分析的誤差,也能最大限度的減小振動(dòng)不平衡量。 2.通過理論推導(dǎo)證明了全矢動(dòng)平衡方法比傳統(tǒng)動(dòng)平衡方法精度高,并進(jìn)行了試驗(yàn)驗(yàn)證。以分析轉(zhuǎn)子振動(dòng)模型的振動(dòng)入手,從不平衡靈敏度的角度,將推導(dǎo)得到的全矢動(dòng)平衡方法與傳統(tǒng)單通道動(dòng)平衡方法各自的不平衡靈敏度進(jìn)行比較,得出了全矢動(dòng)平衡方法具有較高的平衡精度這一結(jié)論。 3.通過實(shí)驗(yàn)多角度證實(shí)全矢動(dòng)平衡方法在現(xiàn)場(chǎng)動(dòng)平衡中具有較好的平衡效果。提出基于主振矢的動(dòng)平衡效率計(jì)算公式,以平衡效率作為平衡效果的度量值,通過轉(zhuǎn)子實(shí)驗(yàn)臺(tái)的單面和雙面動(dòng)平衡實(shí)驗(yàn)對(duì)分別以水平振動(dòng)、垂直振動(dòng)和全矢不平衡響應(yīng)為測(cè)量項(xiàng)的動(dòng)平衡方法平衡效率進(jìn)行橫向比較,得出平衡效果的結(jié)論。 4.進(jìn)行全矢動(dòng)平衡方法的現(xiàn)場(chǎng)動(dòng)平衡儀器的開發(fā)。在全矢動(dòng)平衡方法的基礎(chǔ)上,利用VC++進(jìn)行程序界面設(shè)計(jì)和Matlab進(jìn)行數(shù)據(jù)處理,開發(fā)現(xiàn)場(chǎng)動(dòng)平衡的儀器,該儀器既能夠?qū)崿F(xiàn)對(duì)傳統(tǒng)單通道信號(hào)的單面和雙面動(dòng)平衡功能,又能實(shí)現(xiàn)單面的全矢動(dòng)平衡功能。
[Abstract]:In view of the vibration information used in the traditional dynamic balancing method, a sensor is used to collect the one-way signal from the rotor, and the measurement error problem exists. The whole vector spectrum theory is combined with the rotor dynamic balancing method. Using the full information of rotor vibration, the unbalance fault of rotor is diagnosed, and on the basis of the influence coefficient method, a high precision full-vector balancing method is proposed, which is based on theoretical analysis and experiment. The balance accuracy and balance effect are studied, and the corresponding field dynamic balancing instrument is developed. The research work of this thesis mainly includes: 1. This paper introduces the application of total vector spectrum technology in unbalanced fault diagnosis, and puts forward the concept of full vector balancing method. By combining the frequency characteristics of rotor unbalance fault with full vector spectrum technology, the rotor unbalance fault can be monitored and diagnosed more reliably and accurately. Taking the full vector unbalance response of the rotor as the measuring term, the error of traditional single-channel information analysis can be avoided and the vibration unbalance can be minimized. 2. The accuracy of the full vector balancing method is proved to be higher than that of the traditional dynamic balance method by theoretical derivation. By analyzing the vibration of rotor vibration model, from the angle of unbalance sensitivity, the unbalance sensitivity of the derived full-vector balancing method and the traditional single-channel dynamic balancing method are compared. The conclusion that the full vector balancing method has higher balance accuracy is obtained. 3. The experimental results show that the full vector balancing method has a good balance effect in the field dynamic balance. A formula for calculating the dynamic balance efficiency based on the principal vibration vector is presented. The balance efficiency is taken as the measure of the balance effect. The vertical vibration and the full vector unbalance response are the balance efficiency of the dynamic balance method of the measured term and the balance efficiency is obtained. 4. Carry on the development of the field dynamic balance instrument of the full vector balancing method. On the basis of full vector balancing method, the program interface design of VC and data processing of Matlab are used to develop the instrument of field dynamic balance. The instrument can realize the function of single and double side dynamic balance of traditional single channel signal. It can also realize the function of full vector balance on one side.
【學(xué)位授予單位】：鄭州大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2011
【分類號(hào)】：TH165.3

【引證文獻(xiàn)】

相關(guān)碩士學(xué)位論文 前3條

1 尚慧娟;面向全矢譜分析的轉(zhuǎn)子動(dòng)態(tài)故障特性研究[D];鄭州大學(xué);2012年

2 王星星;柔性多轉(zhuǎn)子串聯(lián)軸系現(xiàn)場(chǎng)動(dòng)平衡技術(shù)研究[D];北京化工大學(xué);2012年

3 趙營豪;基于模態(tài)分析和信息融合技術(shù)的轉(zhuǎn)子運(yùn)動(dòng)形態(tài)分析研究[D];鄭州大學(xué);2013年

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本文編號(hào)：2421087