| 单圆盘对称粘弹性转子轴承系统的动力分析 |
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| 引用本文： | 赵三星,马希直,徐华,朱均. 单圆盘对称粘弹性转子轴承系统的动力分析[J]. 西安交通大学学报, 2002, 36(5): 511-514,527 |
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| 作者姓名： | 赵三星 马希直 徐华 朱均 |
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| 作者单位： | 西安交通大学润滑理论及轴承研究所,710049,西安 |
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| 基金项目： | 国家自然科学基金重大资助项目 (19990 5 10 )，国家“九五”攀登计划资助项目 (PD95 2 190 6 ) |
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| 摘 要： | 采用单圆盘对称粘弹性转子轴承系统的运动模型，计算了有限长滑动轴承的非线性油膜力，利用四阶龙格－库塔法求解其运动方程，模拟出轴颈与圆盘的运动状态（位移和速度），采用线性油膜力分析了系统的线性失稳转速，采用非线性油膜力分析了平衡转子在不同转速下的稳态解，计算了转子轴承系统的不平衡响应，并分析了偏心激励对运动状态影响的复杂性，研究表明，只有在小偏心激励的情况下，采用线性油膜力计算不平衡响应才是可行的。
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| 关 键 词： | 单圆盘对称粘弹性转子轴承系统 动力分析 稳定性 系统响应 |
| 文章编号： | 0253-987X(2002)05-0511-04 |
Stbility and Response Analysis of Single-Disk Symmetric Viscous-Elastic Rotor Bearing System |
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| Zhao Sanxing,Ma Xizhi,Xu Hua,Zhu Jun. Stbility and Response Analysis of Single-Disk Symmetric Viscous-Elastic Rotor Bearing System[J]. Journal of Xi'an Jiaotong University, 2002, 36(5): 511-514,527 |
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| Authors: | Zhao Sanxing Ma Xizhi Xu Hua Zhu Jun |
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| Abstract: | The motion equations have been adopted for single disk symmetric viscous elastic rotor bearing system, and nonlinear oil film force of finite journal bearings is calculated. The journal and the disk motion have been simulated with fourth order Runge kutta method. The threshold speed based on linear theory is given. Dynamic behaviors of balanced rotor and responses of unbalanced rotor are investigated respectively. The complexity of influence of eccentricity mass on system working characteristic has been analyzed. It has been found that linear theory can be used for computing response of unbalanced rotor only when unbalanced eccentricity is small. |
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| Keywords: | finite journal bearing nonlinear oil film force viscous elastic rotor stability response of system |
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