Finite element modal analysis of a rotating disk–spindle system in a HDD with hydrodynamic bearings considering the flexibility of a complicated supporting structure

2005 ◽  
Vol 11 (7) ◽  
pp. 488-498 ◽  
Author(s):  
G. H. Jang ◽  
J. H. Han ◽  
C. H. Seo
Keyword(s):  
Finite Element ◽  
Modal Analysis ◽  
Rotating Disk ◽  
Spindle System ◽  
Hydrodynamic Bearings ◽  
Supporting Structure

Spindle System Dynamic Characteristics Analysis of Vertical Gantry Machining Center

2013 ◽  
Vol 456 ◽  
pp. 286-290
Author(s):  
Hong Bing Huang ◽  
Yong Ming Wang ◽  
Shuai Xia
Keyword(s):  
Finite Element ◽  
Modal Analysis ◽  
Element Model ◽  
Motorized Spindle ◽  
Spindle System ◽  
Machining Center ◽  
Object Based ◽  
Characteristics Analysis ◽  
Dynamic Characteristics Analysis ◽  
The Finite Element Model

With the spindle system of a vertical gantry machining center as the research object, based on the vibration theory and finite element method, the modal analysis of spindle system is studied. Firstly, the finite element models of the mandrel box body and motorized spindle frame of spindle system are established by ANSYS. And then do the modal analysis of singleton in the boundary of free constraint. Lastly, based on the analysis results to establish the finite element model of the whole spindle system and do the modal analysis of the whole system which under constraint condition. The result shows that the swing of motorized spindle frame and motorized spindle sleeve of spindle system are more obvious.

Finite Element Analysis of Large-Size Yaw Bearings with Supporting Structure in Wind Turbine

2014 ◽  
Vol 672-674 ◽  
pp. 1550-1553
Author(s):  
Zhen Guo Shang ◽  
Zhong Chao Ma ◽  
Zhen Sheng Sun
Keyword(s):  
Finite Element ◽  
Wind Turbine ◽  
Point Contact ◽  
Element Model ◽  
Contact Forces ◽  
Element Analysis ◽  
Supporting Structure ◽  
Rolling Elements ◽  
Yaw Bearing ◽  
Compression Springs

A procedure for obtaining the load distribution in a four point contact wind turbine yaw bearing considering the effect of the structure’s elasticity is presented. The inhomogeneous stiffness of the supporting structures creates a variation in the results obtained with a rigid model. A finite element model substituting the rolling elements with nonlinear compression springs has been built to evaluate the effect of the supporting structure elasticity on the contact forces between the rolling elements and the raceways.

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