[分享] 转子动力学软件 ABSTRACT, 转子动力学软件

ABSTRACT
The paper presents a high speed balancing facility case history of a generator rotor with a long turbine end overhang The rotor had experienced rapid increase in vibration at 3600 RPM and amplitude hysteresis at the 2nd mode between run-up and run-down during shop balancing This behavior raised concerns about the possibility of excessive generator rotor vibration on site
A rotor-bearing-support system model was created to study the observed generator behavior in the balance facility Critical speed, unbalance response and damped eigenvalue analyses were performed Examination of the rotor kinetic and potential energies for the 2nd mode showed that over 78% of the rotor 2nd mode kinetic energy was associated with the overhang The analysis indicated that when the rotor operated at 3600 RPM, between the 2nd and 3rd modes, the overhang motion increased due to amplification of both modes and very little damping As a result, vibration at the bearings increased and when the rotor decelerated through the 2nd mode the increased motion on the coupling generated excessive vibration
The model was modified by adding coupling constraints to represent operating conditions of this rotor in the unit The 2nd mode was shifted out of operating speed range, which was confirmed by the field operation
Two rotors were balanced and both are now operating with acceptable vibration levels
This paper illustrates how rotor dynamics analysis help to explain unusual rotor behavior and provided assurance that vibration performance of this rotor on site will not be affected
Vibration plots from the balancing facility, DyRoBes models, critical speed analysis, unbalance response plots, and field vibration data are included as illustrations
Keywords: high speed balancing, rotor dynamics, mode shape, unbalance response, critical speed analysis

能说一下论文的作者吗？谢谢楼主

哪里有试用版的软件呀,可以说吗,我要用,谢谢

是否有这个分析软件下载?在何处?

我们不仅仅需要知道有这样的软件，更关心的是能不能找到这样的软件

什么东西，论文焉叫软件

原帖由 ssqing 于 2008-7-20 20:13 发表
什么东西，论文焉叫软件

我刚看了一下,虽然我看不懂那么多的英文,但是,我感觉应该是一个论文,或者是一个转子动力学软件的应用方法的介绍文章请不要生那么大的气,呵呵气坏了身体是自己的!

看不懂,看不懂

没有用过啊，好学吗？

老大，这全是英语了，有是专业方面的，看起来很难得哟

sd 什么东西，论文焉叫软件什么东西，论文焉叫软件

我也看看，是什么东西。
难道真的是论文？

那别人的论文来发，有什么意思，
哪位把软件发来看下

是一个致力于旋转结构动力学的解决方案。它是基于有限元方法并能够计算含有转子、定子和动静连接装置的机械系统的临界转速、稳定性、谐响应以及瞬时响应。
线性静力学分析(SAMCEF Asef) 在一般热-力载荷条件下，转子系统可进行线性静力学分析，在SAMCEF的转子模块中，基本的线性静力学分析主要为后续的SAMCEF Dynam 或 SAMCEF Rotor/Rotor确定初始条件。
模态分析和创建超单元(SAMCEF Dynam) 对于尺寸较大的模型，定子或转子可用超单元表示，超单元由模态综合生成，可减小刚度矩阵、质量矩阵、陀螺力矩阵、阻尼力矩阵和向心力矩阵的规模。
计算临界转速(SAMCEF Rotor) 有几种方法可解决弯曲、拉压扭转或其相互耦合，扫描法可定义旋转频率的范围，采用复特征值计算。直接法通过特征值法获得临界转速，它被用于恒刚度无阻尼的陀螺系统。
频响分析(SAMCEF Rotor) 几种方法可计算不平衡力或异步载荷的谐振响应。模态法是将力和矩阵用模态坐标表示；直接法通过谐波平衡法可计入局部非线性（间隙、非线性加强筋、压膜阻尼器、用户单元、摩擦片）的影响
瞬态响应分析(SAMCEF Rotor) 瞬态响应分析可模拟转子启动（或停转）和叶片损失，它使用Newmark积分法，诸如间隙、压膜、动压轴承和摩擦片之类的非线性行为可通过牛顿迭代求解，具有自动时间步功能，若需要，也可进行初始静态计算。
敏度和统计学分析(SAMCEF Rotor) 频域分析（临界速度和谐振响应分析）时，可进行不同设计参数的灵敏度分析，特别地，轴承元的动力学特征（刚度、阻尼）可视为设计参数，当给定设计参数的标准方差时，敏度分析可评价整个设计方案的 标准方差。

ARMD－高级旋转机械动力学－是一款被世界上众多大公司认可并选用的高级软件包。该软件为客户提供完整的转子机械动力学分析。ARMD也是唯一一款将最高级和最完善的转子动力学、扭转振动和轴承分析程序集成到Windows操作环境的软件,为用户提供无可比拟的解决方案，让用户在连续、集成的环境下为最复杂的转子-轴承系统建模。