RotorDynamics相关论文
The paper details fundamental progress on the analysis of tilting pad journal bearings that includes both pivot flexibil......
The special requirements of rotor dynamics engineering are illustrated by means of different examples of turbomachines.T......
An industrial high speed Siemens 12 MW steam turbine operating at 10,700 rpm drives a Flender gearbox pinion,which is co......
The motivation to use air foil bearings in fuel cell compressors is driven by the demand for oil-free and high-power den......
Variable Parameters PD Control and Stability of a High Rate Rigid Rotor-Journal Active Magnetic Bear
Stability is a key problem that means whether a high rate rotor-active magnetic bearings system works reliably or not. A......
The motivation to use air foil bearings in fuel cell compressors is driven by the demand for oil-free and high-power den......
Molten salt pump is applied to pump high-temperature molten salt as the primary coolant of a molten salt reactor.The pum......
The paper details fundamental progress on the analysis of tilting pad journal bearings that includes both pivot flexibil......
考虑滑动轴承的非线性油膜力和转定子的碰摩力,建立了含碰摩故障的单盘转子-滑动轴承耦合系统动力学模型。运用四阶变步长的龙格-......
介绍了某型航改燃机整机振动设计特性及其现场调试并作出试验总结....
以轴流涡轮为分析对象,分析了流动沿周向分布不均匀的条件下涡轮转子受到的气动载荷.假设涡轮级内的流动沿周向呈1次谐波形式的余......
由Kollmann-Wolf的试验知道,部分充有无粘不可压缩液体的转子系统,在其临界转速之上存在一个自激失稳区.本文进一步研究了系统在其......
利用轴心轨迹、Poincare映射及分叉图等方法,详细地研究了支承在非线性挤压油膜阻尼器上的柔性转子系统中的周期分叉特性。......
高速运转的储能飞轮支承系统存在多个低频进动模态,这些模态的衰减指数对飞轮的安全运转具有决定意义,为提高模态阻尼,设计了引入外部......
从实验上详细地观察和研究了部分充液柔性转子系统不稳定产生的过程、失稳过程中转子系统的动力特性以及充液量对转子系统振动和稳......
以现有同心锥形密封环湍流工况计算理论为基础,推导了轴相对密封环有偏心时的静态和动态特性计算公式,并将相计算程序计算值与有关实......
用切比雪夫多项式方法,分析了颈轴承支承的裂纹转子的稳定性。通过大量的数值计算,发现在大重力参数情形下,裂纹引起的不稳定区与裂纹......
The technique of non-stationary oll film force database for hydrodynamic bearing is introduced and its potential applica......
用快速Galerkin方法结合Floquet理论和数值积分方法,对采用短轴承模型的刚性Jeffcott转子系统在较宽的参数范围进行分叉研究,计算结果表明,系统存在倍周期和Hopf分......
在无限短转子-轴承的基础上,考虑基础在垂直方向的变形,通过分析油膜力,建立了转子-轴承-基础非线性动力学模型。当基础的刚度下降至一定......
摘要: 在带定心弹簧的同心型挤压油膜阻尼器-多盘柔性转子系统动力学试验装置上,研究了油膜内外环在静态具有良好同心和存在部分接触......
A disc-type magneto-rheological fluid damper operating in shear mode is proposed in this paper,which is based on the spe......
轴承的动力特性对转子-轴承系统的动力特性有重要的影响。但至今,滚动轴承的动力特性仍缺乏系统的资料,在许多情况下,将滚动轴承简化为......
随着旋转机械向高转速、高参数方向发展,气体轴承支承旋转机械的稳定性问题越来越突出。为提高系统的稳定性,人们在单一的、简单结......
从流体动力学出发,应用动量定理研究汽轮机短直叶片由于间隙引起的非线性气流激振力问题,综合考虑了叶片的各项设计参数并应用理论分......
为提升转子系统多目标优化的效率,首先对比分析了求解临界转速的坎贝尔图法和特征方程法,随后通过第二代非支配排序遗传算法(NSGA-......
建立了双盘悬臂柔性转子-同心型挤压油膜阻尼器(SFD)系统的运动微分方程(定常转速和定常加速)及突加不平衡响应方程,分析了系统参数对于突加......
基于电涡流原理提出了一种新型的转子系统径向电涡流阻尼器,分析了这种阻尼器的结构和动力模型,并在不同磁场强度条件下测量、研究了......
API 617标准中规定,如果基础结构刚度在0~150%最大连续转速范围内大于轴承刚度的3.5倍,则在动力学计算中不需要考虑弹性基础的影响......
基于大间隙环流中转子运动的理论模型,应用数值方法研究了流体机械中浸在大间隙环流中偏心转子的动力学特性。研究结果表明:惯性耦合......
传动系统是测试装备行业的重要组成部分,在高速试验中,振动特性直接影响传动系统的性能。本文基于ANSYS16.0建立了传动轴系的转子......
本文以提高转子系统稳定性为主要目标,结合实际的工业离心压缩机,研究轴承预负荷对对数衰减率、瓦温、功率损耗以及润滑油量的影响。......
The paper details fundamental progress on the analysis of tilting pad journal bearings that includes both pivot flexibil......
本文讨论了具有两个动力缓冲器的可变阻抗滑动轴承的动力学系数及其计算方法,建立了基于Reynolds方程和流量连续性原理的油膜压力分布理论模......
对一次动平衡试验未得到预期结果进行了理论分析,证明了双转子动力装置现行的只注意不平衡度数值、不注意方位的动平衡规范的不合......
Influence of the Foundation on the Threshold of Stability for Rotating Machines with Roller Bearings
The paper presents a mathematical model for analyzing the threshold of stability for rotating machines, where the rotor ......
Influence of the Foundation on the Threshold of Stability for Rotating Machines with Roller Bearings
The paper presents a mathematical model for analyzing the threshold of stability for rotating machines, where the rotor ......
Mathematical Multibody Model of a Soft Mounted Induction Motor Regarding Forced Vibrations Due to Dy
The paper presents a mathematical multibody model of a soft mounted induction motor with sleeve bearings regarding force......
The paper presents a mathematical rotordynamic model regarding excitation due to elliptical shaft journals in sleeve bea......
The paper presents a mathematical rotordynamic model regarding excitation due to elliptical shaft journals in sleeve bea......
当转子系统中的非线性较为显著时,按通常辨识建模方法获得的线性化振动微分方程模型将难以定量和定性描述转子系统的真实振动行为,从......
Fatigue cracks may appear in horizontal rotating machinery due to periodic stresses imposed to its shaft. The investigat......