转子动力学

• The main results obtained in this paper are as following : ( 1 ) the latest achievements on modern rotordynamics are summarized into eight parts , laying emphases on the nonlinear dynamical problems in every part
  本文针对这三个问题取得了以下具体研究成果： ( 1 )从八个方面综述了现代非线性转子动力学的研究现状和存在问题。
• With the development of the theory of modern nonlinear dynamics , nonlinear dynamics connects with rotor dynamics more tightly , which makes the research on rotor dynamics present a new outlook
  随着现代非线性动力学理论的发展,非线性动力学理论与转子动力学越来越紧密的结合在一起,这使得转子动力学的研究也呈现出了一个新的面貌。
• The nonlinear electromagnetic force may cause the large oscillations of the rotor in some parameter regions . thus , the studies on the properties of the nonlinear dynamics and the stability for the rotor - ambs system play an important role in the engineering
  非线性力的作用使转子在某些参数域中产生相当大的振动，因此分析该类系统的非线性振动特性和稳定性一直是电磁轴承-转子动力学研究的重要课题。
• With the increment of the speed and efficiency , higher requirements for dynamic characteristic , reliability and stability to large - sized rotating machinery has been made along . these realistic demands have promoted the development of rotor dynamics
  旋转机械向着高速化、高效化的方向发展,因此,对于旋转机械的动力特性、可靠性及稳定性,人们也提出了更高的要求,这些现实要求促进了转子动力学的发展。
• First . the paper introduces basical nonlinear theory frequently used in the study of bearing - rotor systems and a accurate model of nonlinear oil - film force . the nonlinear dynamic behaviors of bearing - rigid rotor system are extensively investigated
  论文首先介绍了非线性转子动力学中常用的有关基本理论及本文采用的一种非线性非稳态油膜力模型，并利用该模型从多个角度研究了轴承?刚性转子的非线性动力学行为。
• Modal bode plot theory for diagnosing the rotor imbalance axial position and rotor imbalance type is presented based on advanced rotor dynamics theory and field balancing rotating machinery theory and comprehensive experience of field balancing steam - turbine generator set
  摘要基于转子动力学理论、汽轮发电机组轴系现场动平衡理论和工程实践经验，提出可直接判断轴系不平衡轴向位置及不平衡型式的振型波特曲线方法。
• Recently , it is the focus of domestic and international research to study the nonlinear forces acting on shaft , which generated by the small gap restraint between the motional and immobile parts , and to analyze and study the nonlinear dynamics actions of large - scale rotating machinery
  目前转子动力学的国内外研究热门是:通过研究旋转机械动、静部件之间的微小间隙约束对轴系的非线性激励的影响,来深入分析研究大型旋转机械的非线性动力学行为。
• Based this background , this paper studies the some non - linear dynamic problems existing in bearing - rotor system using numerical integral method . the results give some theoretical basis to the designs of similar systems and have specified engineering signifance
  在此背景下，以轴承?转子系统为研究对象，利用数值积分法和poincare映射并结合谱分析，研究了转子动力学中的若干非线性问题，所得结果为有关旋转机械的设计及故障监测与诊断提供了一定的依据。
• In the dissertation , with building the analysis model of rollin g bearing , the supporting stiffness matrix is added into the whole stiffness matrix of shaft and the dynamics characteristic of shaft rotor and working parameters of each bearing is calculated with finite element theory
  建立了滚动轴承的拟静力学分析模型，应用有限元法，将轴承的支承刚度带入整个轴系的刚度矩阵进行分析，计算出包括临界转速在内的轴系转子动力学性能和各个轴承的工作参数。
• The method and the formula of calculating vibration fuzzy reliability of the shaft system are presented . a method of robust design based on the orthogonal design is used in the fuzzy optimization design of swing movable teeth reducer . the model of robust optimal design is built
  根据摆动活齿减速器转轴系统的结构特点，运用转子动力学理论建立了转轴系统的弯曲振动临界转速计算模型，运用模糊可靠性理论对摆动活齿减速器的转轴系统进行了振动模糊可靠性研究。