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首页> 外文会议>National Technical Training Symposium and Twenty-Sixth Annual Meeting, Jun 18-20, 2002 >A Practical Guide to Rotor Dynamics
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A Practical Guide to Rotor Dynamics

机译：转子动力学实用指南

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Rotor dynamics is a very interesting and complicated subject. The importance of this subject has increased over the last few decades as machine speeds have increased and higher flows and efficiencies have had the side effect of introducing problems with critical speeds, unbalance response and rotor stability. Some of these problems are related to the economics of the capital expenditures where a machine may be bought on a cost basis. Far too often this results in excessive and expensive rebuilds and costly lost production. This paper will introduce the basics of rotor dynamics and lead into some of the more advanced concepts. The mathematics will be kept to a minimum and as many helpful "rules of thumb" will be included as this subject allows. Units are shown in detail for each equation. At times, rotor dynamics can be a very controversial subject from the nomenclature used to the question of the degree of accuracy needed to model a rotor dynamic system. There have been many simplifications and assumptions made in this paper and the author offers some opinions that some people may disagree with, but the approach here is quite conservative and has proven successful over the last 25 years of my career. The approaches and guidance offered here are based on experience of many people and many years of analyzing and testing machinery. Analytical and actual test data will be used as examples. A nomenclature page is included and whenever possible, the symbols used for various factors are identified in the body of the paper. At the end of the paper is a list of references that the author has found very valuable and are recommended for further reading. Rules of thumb are fine but the reader should come to the conclusion that the only way to do a meaningful rotor dynamics analysis on a machine train will be to procure the necessary computer programs to do the analysis. Some sources for programs used in the preparation of this paper are noted in the acknowledgments. There are many sources for computer programs that will run well on personal computers. While some are easier to use than others and some use differing analytical techniques, like any tool, these programs are dependent on the skills of the user. GIGO remains a problem today and the more powerful the program, the more pitfalls there are waiting. Thus, the main purposes of this paper are to introduce the basic concepts of rotor dynamics and to serve as a reality check guide. I always ask myself at each stage of analysis "...can that be right?" and if it fits logically, I proceed. If not, I backup and examine the input or my assumptions.
机译：转子动力学是一个非常有趣和复杂的主题。在过去的几十年中，随着机器速度的提高以及更高的流量和效率带来了引入临界速度，不平衡响应和转子稳定性等问题的副作用，这一主题的重要性日益提高。其中一些问题与资本支出的经济性有关，在资本支出中，可以按成本购买机器。通常，这会导致过多且昂贵的重建工作以及昂贵的生产损失。本文将介绍转子动力学的基础知识，并介绍一些更高级的概念。数学将保持在最低限度，并且将包括尽可能多的有用的“经验法则”。每个方程式均详细显示了单位。有时，从使用的术语到对转子动力学系统建模所需的准确性程度的问题，转子动力学可能是一个很有争议的主题。本文进行了许多简化和假设，作者提出了一些人可能不同意的观点，但是这里的方法相当保守，并且在我职业生涯的最后25年中被证明是成功的。这里提供的方法和指导是基于许多人的经验以及多年分析和测试机器的经验。分析和实际测试数据将用作示例。其中包含一个术语表页面，并在可能的情况下，在本文正文中标识用于各种因素的符号。本文的最后是作者发现非常有价值的参考文献列表，建议进一步阅读。经验法则很好，但是读者应该得出结论，在机械传动系上进行有意义的转子动力学分析的唯一方法是采购必要的计算机程序来进行分析。在致谢中注明了本文准备中使用的程序的一些来源。有许多可以在个人计算机上很好运行的计算机程序源。尽管某些工具比其他工具更易于使用，并且某些工具使用不同的分析技术（如任何工具），但这些程序取决于用户的技能。 GIGO今天仍然是一个问题，该程序功能越强大，等待的陷阱就越多。因此，本文的主要目的是介绍转子动力学的基本概念，并作为现实的检查指南。在分析的每个阶段，我总是问自己：“ ...对吗？”如果符合逻辑，我继续。如果没有，我将备份并检查输入或我的假设。

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