瞬态(计算机编程)
运动(物理)
流体运动
机械
动力学(音乐)
计算流体力学
流固耦合
计算机科学
材料科学
机械工程
声学
物理
工程类
结构工程
经典力学
有限元法
操作系统
作者
Peng Xia,Xiaofei Jin,Wenlong Song,Yangqiao Liang,Shicheng Xu,Jia‐Bao Liu,Zhansheng Liu,Wensheng Ma
标识
DOI:10.1177/13506501241227708
摘要
Hybrid porous tilting pad bearings with the advantages of gas porous bearings and tilting pad bearings exhibited excellent rotor-supporting performance with high accuracy and stability. Under hybrid lubrication, the transient adaptive motion of the tilting pads was important for the rotordynamic characteristics. A novel fluid–structure interaction model of hybrid porous tilting pad bearings was developed to investigate the transient hydro forces and the pad's adaptive motion. The rotordynamic coefficients of the hybrid porous tilting pad bearings were identified using the rotor harmonic trajectory. The computational fluid dynamics-fluid–structure interaction model was validated with the experimental data. The effects of eccentricity ratios, rotor speeds, supply pressures, pivot radial stiffnesses, and dampings on the pad adaptive motion and the rotordynamic coefficients were evaluated. The pad self-adaption motions significantly influenced the supporting and vibration-absorbing characteristics of hybrid porous tilting pad bearings.
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