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

【摘要】：隨著現(xiàn)代工業(yè)對高效率、高精度和自動化生產(chǎn)的要求越來越高，作為大型旋轉機械核心部件的轉子系統(tǒng)，其動平衡問題越發(fā)引起人們的重視，而微速差雙轉子系統(tǒng)的動平衡正是其中重要的一部分。針對傳統(tǒng)單通道信息在轉子動平衡問題上的諸多弊端，本文采用了將全矢譜技術與傳統(tǒng)影響系數(shù)法相結合的全矢動平衡方法來解決。以多氟多公司的兩臺臥螺離心機作為試驗平臺，利用全矢動平衡方法來進行動平衡，然后將平衡效果與傳統(tǒng)影響系數(shù)法相對比，證明了全矢動平衡方法在微速差雙轉子系統(tǒng)的平衡上精度高。主要研究工作有： 1、從單元盤轉子系統(tǒng)存在質量偏心的問題入手，分析了不平衡故障機理，研究了不平衡故障類型、危害以及產(chǎn)生的原因，為動平衡理論分析和全矢譜參數(shù)間的聯(lián)系奠定基礎。 2、對剛性轉子、撓性轉子影響系數(shù)法進行了分析，通過研究單通道信息的影響系數(shù)法，指出其在解決轉子不平衡問題上的弊端，，由此引出全矢譜技術，進而提出了基于此技術的高精度全矢動平衡方法（FVDB），然后通過從Bently轉子實驗臺得到的實驗數(shù)據(jù)證明了全矢動平衡方法的優(yōu)越性；針對不平衡響應算法的繁雜性，介紹了簡易算法，優(yōu)化了計算過程，提高了動平衡效率。 3、以微速差雙轉子系統(tǒng)中有代表性的臥螺離心機為具體對象，對其結構和工作原理作了分析。在現(xiàn)場離心機設備為平臺的條件下，采用PDES-E儀器作為信號采集和分析的試驗工具，利用全矢動平衡方法對兩臺臥螺離心機進行了平衡校正，并將平衡結果與傳統(tǒng)單通道影響系數(shù)法進行對比，證明了全矢動平衡方法在解決微速差雙轉子系統(tǒng)不平衡問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.
【學位授予單位】：鄭州大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TH113.25

【參考文獻】

相關期刊論文 前10條

1 韓捷;王宏超;陳宏;鞏曉峗;王植申;;滾動軸承故障的全矢小波分析[J];軸承;2011年03期

2 謝志江,唐一科,李遠友;轉子雙面現(xiàn)場動平衡的不卸試重平衡法[J];重慶大學學報(自然科學版);2002年09期

3 齊俊帥;韓捷;董辛e

本文編號：1844536