本文選題：全矢動(dòng)平衡 + 影響系數(shù)法��； 參考：《鄭州大學(xué)》2014年碩士論文

【摘要】：隨著現(xiàn)代工業(yè)對(duì)高效率、高精度和自動(dòng)化生產(chǎn)的要求越來(lái)越高，作為大型旋轉(zhuǎn)機(jī)械核心部件的轉(zhuǎn)子系統(tǒng)，其動(dòng)平衡問(wèn)題越發(fā)引起人們的重視，而微速差雙轉(zhuǎn)子系統(tǒng)的動(dòng)平衡正是其中重要的一部分。針對(duì)傳統(tǒng)單通道信息在轉(zhuǎn)子動(dòng)平衡問(wèn)題上的諸多弊端，本文采用了將全矢譜技術(shù)與傳統(tǒng)影響系數(shù)法相結(jié)合的全矢動(dòng)平衡方法來(lái)解決。以多氟多公司的兩臺(tái)臥螺離心機(jī)作為試驗(yàn)平臺(tái)，利用全矢動(dòng)平衡方法來(lái)進(jìn)行動(dòng)平衡，然后將平衡效果與傳統(tǒng)影響系數(shù)法相對(duì)比，證明了全矢動(dòng)平衡方法在微速差雙轉(zhuǎn)子系統(tǒng)的平衡上精度高。主要研究工作有： 1、從單元盤轉(zhuǎn)子系統(tǒng)存在質(zhì)量偏心的問(wèn)題入手，分析了不平衡故障機(jī)理，研究了不平衡故障類型、危害以及產(chǎn)生的原因，為動(dòng)平衡理論分析和全矢譜參數(shù)間的聯(lián)系奠定基礎(chǔ)。 2、對(duì)剛性轉(zhuǎn)子、撓性轉(zhuǎn)子影響系數(shù)法進(jìn)行了分析，通過(guò)研究單通道信息的影響系數(shù)法，指出其在解決轉(zhuǎn)子不平衡問(wèn)題上的弊端，，由此引出全矢譜技術(shù)，進(jìn)而提出了基于此技術(shù)的高精度全矢動(dòng)平衡方法（FVDB），然后通過(guò)從Bently轉(zhuǎn)子實(shí)驗(yàn)臺(tái)得到的實(shí)驗(yàn)數(shù)據(jù)證明了全矢動(dòng)平衡方法的優(yōu)越性；針對(duì)不平衡響應(yīng)算法的繁雜性，介紹了簡(jiǎn)易算法，優(yōu)化了計(jì)算過(guò)程，提高了動(dòng)平衡效率。 3、以微速差雙轉(zhuǎn)子系統(tǒng)中有代表性的臥螺離心機(jī)為具體對(duì)象，對(duì)其結(jié)構(gòu)和工作原理作了分析。在現(xiàn)場(chǎng)離心機(jī)設(shè)備為平臺(tái)的條件下，采用PDES-E儀器作為信號(hào)采集和分析的試驗(yàn)工具，利用全矢動(dòng)平衡方法對(duì)兩臺(tái)臥螺離心機(jī)進(jìn)行了平衡校正，并將平衡結(jié)果與傳統(tǒng)單通道影響系數(shù)法進(jìn)行對(duì)比，證明了全矢動(dòng)平衡方法在解決微速差雙轉(zhuǎn)子系統(tǒng)不平衡問(wèn)題上具有可行性和優(yōu)越性。
[Abstract]:With the increasing demands of modern industry for high efficiency, high precision and automatic production, the rotor system, which is the core component of large rotating machinery, has attracted more and more attention. The dynamic balance of the two-rotor system with micro-speed difference is an important part of it. In view of the disadvantages of traditional single-channel information in rotor dynamic balancing, the full vector balancing method which combines the whole vector spectrum technique with the traditional influence coefficient method is used to solve the problem. In this paper, two horizontal centrifuges of polyfluorocarbon company were used as the test platform, and the balance effect was compared with the traditional influence coefficient method by using the full-vector balancing method. It is proved that the full vector balancing method has high accuracy on the balance of a two-rotor system with micro-velocity difference. The main research work is: 1. Starting with the problem of mass eccentricity in the unit disk rotation subsystem, the mechanism of unbalanced fault is analyzed, and the types, hazards and causes of the unbalanced fault are studied, which lays a foundation for the dynamic balance theory analysis and the relationship between the full vector spectrum parameters. 2. The influence coefficient method of rigid rotor and flexible rotor is analyzed. By studying the influence coefficient method of single channel information, the disadvantages of the method in solving rotor unbalance are pointed out, and the full vector spectrum technique is introduced. Then, a high-precision full-vector balancing method based on this technique is proposed, and then the superiority of the full-vector balancing method is proved by the experimental data obtained from the Bently rotor test bench, and the simple algorithm is introduced in view of the complexity of the unbalanced response algorithm. The calculation process is optimized and the dynamic balance efficiency is improved. 3. The structure and working principle of the typical horizontal spiral centrifuge in the double rotor system with different velocities are analyzed. Under the condition that the field centrifuge equipment is used as the platform, the PDES-E instrument is used as the test tool for signal acquisition and analysis, and the balance correction of the two horizontal centrifuges is carried out by using the full-vector dynamic balance method. By comparing the results with the traditional single-channel influence coefficient method, it is proved that the full-vector balancing method is feasible and superior in solving the unbalance problem of two-rotor system with micro-velocity difference.
【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】：2014
【分類號(hào)】：TH113.25

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本文編號(hào)：1844536