Nonlinear Dynamics of a Blade Rotor with Coupled Rubbing of Labyrinth Seal and Tip Seal

被引：3
|
作者：
Zhang, Huabiao [1 ]
Li, Xinye [2 ]
Wang, Dongai [1 ]
Liu, Tingting [3 ]
机构：
[1] Tianjin Univ Commerce, Sch Mech Engn, Tianjin 300134, Peoples R China
[2] Hebei Univ Technol, Sch Mech Engn, Tianjin 300401, Peoples R China
[3] Tianjin Jinyongming Sci & Technol Dev Co Ltd, Tianjin 300393, Peoples R China
来源：
SHOCK AND VIBRATION | 2021年 / 2021卷
基金：
中国国家自然科学基金;
关键词：
VIBRATION RESPONSE; STABILITY ANALYSIS; JEFFCOTT ROTOR; SYSTEM; BIFURCATION; WHIRL; CHAOS;
D O I：
10.1155/2021/3826429
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
The dynamic response and its stability of a blade rotor with coupled rubbing in the labyrinth seal and tip seal are investigated. The dynamic equations are established based on the Hertz contact rubbing force at the labyrinth seal and the tip rubbing force considering both the contact deformation of the tip seal and the bending deformation of the blade. Numerical simulations show that the coupled rubbing response includes periodic motions, almost periodic motions, and chaotic motions. Compared with the single rubbing fault, coupled rubbing increases the range of rotation velocity of contact. A new continuation shooting method is used in the solution and stability analysis of the periodic response to give the bifurcation diagrams. The paths of the system for entering and exiting chaos are analyzed.
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收藏
页数：14
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