scholarly journals Finite Element Modal Analysis of Twin Ball Screw Driving Linear Guide Feed Unit Table

2017 ◽  
Author(s):  
Xiangrong Xu ◽  
Xianchun Song ◽  
Hongkui Jiang ◽  
Yanfeng Li ◽  
Qunpeng Lu
Keyword(s):  
Finite Element ◽  
Modal Analysis ◽  
Ball Screw ◽  
Linear Guide ◽  
Screw Driving ◽  
Feed Unit

Finite Element Modal Analysis of Ball Screws Linear Guide Feed Unit

2013 ◽  
Vol 433-435 ◽  
pp. 67-71 ◽  
Author(s):  
Xiang Rong Xu ◽  
Xian Chun Song ◽  
Hong Kui Jiang ◽  
Yan Feng Li
Keyword(s):  
Finite Element ◽  
Modal Analysis ◽  
Natural Frequency ◽  
High Speed ◽  
Element Model ◽  
Ball Screw ◽  
Test Results ◽  
Cnc Machine ◽  
Linear Guide ◽  
Feed Unit

With the high-speed and high-precision development of CNC machine tool, the vibration problem of ball screws linear guide feed unit has become more and more prominent. The dynamic characteristics was analyzed for ball screws linear guide feed unit, the 3D finite element model was built, the finite element modal analysis was discussed, the natural frequency and vibration modes were obtained, which were compared with the test results. The vibration weaknesses of ball screws linear guide feed unit were found out. The results show that the vibration weaknesses of ball screws linear guide feed unit occur mainly in the ball screws and its connection part with the worktable, its natural frequency are affected by its supporting pattern, and more close to the test results compared with those of ball screw feed unit without considering linear guide, which provide theoretical basis for the structure optimization of ball screws linear guide feed unit.

Dynamics Analysis of Refrigeration Compressor Based on Finite Element and Experimental Modes

2012 ◽  
Vol 499 ◽  
pp. 238-242
Author(s):  
Li Zhang ◽  
Hong Wu ◽  
Yan Jue Gong ◽  
Shuo Zhang
Keyword(s):  
Finite Element ◽  
Dynamic Response ◽  
Modal Analysis ◽  
Natural Frequency ◽  
High Precision ◽  
3D Model ◽  
Finite Element Models ◽  
Dynamics Analysis ◽  
Response Characteristics ◽  
Dynamic Response Characteristics

Based on the 3D model of refrigeration's compressor by Pro/E software, the analyses of theoretical and experimental mode are carried out in this paper. The results show that the finite element models of compressor have high precision dynamic response characteristics and the natural frequency of the compressor, based on experimental modal analysis, can be accurately obtained, which will contribute to further dynamic designs of mechanical structures.

scholarly journals Dynamics Characteristics of Blast Furnace Shell

2011 ◽  
Vol 2-3 ◽  
pp. 1018-1020
Author(s):  
De Chen Zhang ◽  
Yan Ping Sun
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Blast Furnace ◽  
Modal Analysis ◽  
Natural Frequencies ◽  
Theoretical Foundation ◽  
Structural Mechanics ◽  
Mode Shapes ◽  
The Future ◽  
Element Method

Finite element method and structural mechanics method are used to study the blast furnace shell modal analysis and the natural frequencies and mode shapes have been calculated. The two methods were compared and validated , and the results provide a theoretical foundation for the anti-vibration capabilities design of blast furnace shell in the future .

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