Deep Hole Honing Based on Squeeze Film Damping Technology

2009 ◽  
Vol 76-78 ◽  
pp. 252-257
Author(s):  
Tian Biao Yu ◽  
Ya Dong Gong ◽  
Wan Shan Wang
Keyword(s):  
Differential Equation ◽  
Experimental Result ◽  
Squeeze Film ◽  
Design Parameters ◽  
Improve Quality ◽  
Deep Hole ◽  
Squeeze Film Damper ◽  
Squeeze Film Damping ◽  
Hole Machining

In order to improve quality of deep hole machining, a new method of deep hole honing based on squeeze film damping technology is put forward. For analysis effect on damper parameters on honing quality, motion differential equation of honing spindle with a squeeze film damper (SFD) is established according to D' Alembert principle and according simulations are studied. Spindle of deep hole honing with a SFD is designed based on the result of simulations and experiments are carried on. Experimental result shows that SFD with reasonable design parameters has excellent damping function to honing spindle, and it can make the vibration of honing spindle reduced 20%～30% and the quality of deep hole machining improved 10%～20%.

Study on Deep Hole Honing Based on Squeeze Film Technology

2009 ◽  
Vol 407-408 ◽  
pp. 545-549
Author(s):  
Tian Biao Yu ◽  
Rui Wen ◽  
Ya Dong Gong ◽  
Wan Shan Wang
Keyword(s):  
Experimental Research ◽  
Experimental Result ◽  
Squeeze Film ◽  
Design Parameters ◽  
Improve Quality ◽  
Deep Hole ◽  
Squeeze Film Damper ◽  
Theory Research ◽  
Hole Machining

. In order to improve quality of deep hole finishing, a new method of deep hole honing based on squeeze film technology is put forward. According to fluid lubricates theory, Renault equation of deep hole honing squeeze film damper (SFD) is established, squeeze film force is solved by immense short bearing theory and the effect of the eccentricity of SFD on the damping coefficient is analyzed by MATLAB. Spindle of deep hole honing with SFD is designed based on theory research, and experimental research is carried on. Experimental result shows that SFD with reasonable design parameters has excellent damping function to honing spindle, and it can make vibration of honing spindle reduced 20%～30% and quality of deep hole machining improved 10%～20%.

Study on Application of SFD for Deep Hole Machining

2006 ◽  
Vol 304-305 ◽  
pp. 450-454
Author(s):  
Tian Biao Yu ◽  
Ya Dong Gong ◽  
J. Liu ◽  
F. Xu ◽  
Wan Shan Wang
Keyword(s):  
Differential Equation ◽  
Experimental Result ◽  
Squeeze Film ◽  
Grinding Wheel ◽  
Deep Hole ◽  
Work Efficiency ◽  
Squeeze Film Damper ◽  
Machining Precision ◽  
Is Design ◽  
Hole Machining

Based on the shortcoming and deficiency of deep hole machining, a grinding wheel spindle with squeeze film damper—SFD is design based on squeeze film damped theory. The motion differential equation of SFD grinding wheel spindle is constituted according to D’ Ale mbert principle，and a lot of simulated research has been carried out about the locus of grinding wheel spindle affect by SFD. Founded on the simulated result, the SFD grinding wheel spindle of internal grinder have designed, and the grinding experiments have been performed. Experimental result indicate that the rationality of design for SFD can make the vibration of the grinding wheel spindle reduce 25% , and make machining precision of hole improve 20% , make work efficiency of the grinder raise 15%.

Study on the Ultrahigh Speed Grinding of Superhard Materials with Squeeze Film Damping Technology

2010 ◽  
Vol 638-642 ◽  
pp. 2369-2374
Author(s):  
Tian Biao Yu ◽  
Hu Li ◽  
Jian Yu Yang ◽  
Wan Shan Wang
Keyword(s):  
Pressure Distribution ◽  
Experimental Result ◽  
Squeeze Film ◽  
Grinding Wheel ◽  
Superhard Materials ◽  
Squeeze Film Damper ◽  
Machining Quality ◽  
Squeeze Film Damping ◽  
Theory Research

In order to further improve machining quality of superhard materials, it was presented that adds a squeeze film damper on the wheel spindle of ultrahigh speed grinder as a assistant elastic sustain to attenuate the vibration of the wheel spindle. Work principle of squeeze film damper was analyzed; the squeeze film pressure distribution was researched through simulation and damper parameters effect on damping coefficient was studied. Base on the theory research the damper was designed and experiments was done. Experimental result shows the amplitude of the grinding wheel spindle can be reduced 20% and machining quality of superhard materials can be improved 10%～20%. Research works provides a new method for superhard materials machining.

Study on the Dynamic Characteristics of Ultrahigh Speed Grinding Spindle Based on Squeeze Film Damping Technology

2009 ◽  
Vol 416 ◽  
pp. 123-126
Author(s):  
Tian Biao Yu ◽  
Ya Dong Gong ◽  
Hu Li ◽  
Wan Shan Wang
Keyword(s):  
Design Method ◽  
New Technology ◽  
Equations Of Motion ◽  
Squeeze Film ◽  
Design Parameters ◽  
Grinding Wheel ◽  
Squeeze Film Damper ◽  
Squeeze Film Damping ◽  
Working Principle ◽  
Set Up

For improving grinding quality of ultrahigh speed grinding a new design method for ultrahigh speed grinding spindle is put forwarded based on squeeze film damping technology. Working principle of squeeze film damper of ultrahigh speed grinding spindle is study and differential equations of motion of the ultrahigh speed grinding wheel spindle with a squeeze film damper are set up according to d'Alembert principle. Effects of design parameters of the damper on the motion section of the spindle are studied by the way of simulation based on it. Research works show that the dynamic characteristic of ultrahigh speed grinding spindle can be improved well through adding a squeeze film damper. Research works provides a new technology for the design of the ultrahigh speed grinding spindle system.

Experimental Study on Precision Hole Machining with Squeeze Film Damping Technology

2007 ◽  
Vol 339 ◽  
pp. 90-94
Author(s):  
Tian Biao Yu ◽  
Ya Dong Gong ◽  
J. Liu ◽  
F. Xu ◽  
Wan Shan Wang
Keyword(s):  
Squeeze Film ◽  
Grinding Wheel ◽  
Important Research ◽  
Work Efficiency ◽  
Squeeze Film Damper ◽  
Squeeze Film Damping ◽  
Time Work ◽  
Precision Hole ◽  
Damping Theory ◽  
Hole Machining

A grinding wheel spindle with squeeze film damper—SFD is designed based on squeeze film damping theory and relevant grinding experiments have been performed. Experimental results indicate that the rationality of design for SFD can make the vibration of the grinding wheel spindle is reduced by 25%. The precision of hole machining is improved by 20%. At the same time, work efficiency of the grinder can be raised about 15%. So it has very important research value and wide application prospect in the field of machining.

Experimental Study of the Ultrahigh Speed Grinding Spindle System with a Squeeze Film Damper

2008 ◽  
Vol 375-376 ◽  
pp. 658-662
Author(s):  
Tian Biao Yu ◽  
Ya Dong Gong ◽  
Shuang Liang ◽  
Guang Qi Cai ◽  
Wan Shan Wang
Keyword(s):  
Experimental Study ◽  
New Technology ◽  
Squeeze Film ◽  
Grinding Wheel ◽  
Spindle System ◽  
Squeeze Film Damper ◽  
Squeeze Film Damping ◽  
Study Results ◽  
Series Of Experiments

In order to improve the attenuation ability of grinding wheel spindle and manufacturing quality of workpiece, an ultrahigh speed grinding spindle system with a SFD was designed based on the theory of squeeze film damping, and a series of experiments were done. The study results show that the application of SFD technology can effectively restrain vibration which is caused by the imbalance quality when the grinding wheel spindle turning at ultrahigh speed. And the speed of the grinding spindle is higher and the effect of attenuation of SFD to grinding spindle is better. Research works provides a new technology for the design of the ultrahigh speed grinding spindle system.

Experimental Investigation of the Design Parameters and of the Working Conditions on the Global Characteristics of a Squeeze Film Damper

2005 ◽  
Author(s):  
Cyril Defaye ◽  
Philippe Carpentier ◽  
Charles Debailleux ◽  
Mihai¨ Arghir ◽  
Olivier Bonneau ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Working Conditions ◽  
Experimental Result ◽  
Squeeze Film ◽  
Experimental Program ◽  
Design Parameters ◽  
Squeeze Film Damper ◽  
Squeeze Film Dampers

Squeeze film dampers (SFD) is a topical subject since almost four decades [1, 2] but the need of experimental result is still stringent. The present work introduces the results of an experimental program aimed to investigate the influence of the design parameters and of the working conditions on the global characteristics of sealed SFD.

The Study of Deep-Hole Drilling BTA Drill Whirl Caused by Cutting Fluid

2015 ◽  
Vol 752-753 ◽  
pp. 466-472
Author(s):  
Zhen Ya Chen ◽  
Zhen Dong ◽  
Xiao Bin Huang ◽  
Yan Lan Li
Keyword(s):  
Reynolds Equation ◽  
Cutting Fluid ◽  
Squeeze Film ◽  
Hole Drilling ◽  
Deep Hole ◽  
Fluid Force ◽  
Deep Hole Drilling ◽  
Squeeze Film Damper ◽  
Before And After ◽  
Squeeze Effect

The relationships between drill speed, whirl, squeeze effect and fluid force drill suffered is got by using cutting fluid Reynolds equation. Principle of deep-hole drilling drill whirl is studied, pointing out the promotion of positive precession cutting fluid component is drill whirl’s reason. Simulated and studied of drill whirl round shape at different times, suggesting that only when BTA drill suffered by the fluid force, stable motion can be obtained. Analysis of the anti-precession of drill, and the squeeze film damper work principle is revealed. Comparative studied the movement of the drill by using MATLAB software simulation before and after adding squeeze film damper.

scholarly journals Squeeze Film Damping Effect on Different Microcantilever Probes in Tapping Mode Atomic Force Microscope

Scanning ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Yan Sun ◽  
Jing Liu ◽  
Kejian Wang ◽  
Zheng Wei
Keyword(s):  
Atomic Force Microscope ◽  
Theoretical Models ◽  
Sample Surface ◽  
Squeeze Film ◽  
Simplified Models ◽  
Tapping Mode ◽  
Damping Effect ◽  
Atomic Force ◽  
Squeeze Film Damping

During the operation of tapping mode atomic force microscope (TM-AFM), the gap between the cantilever and sample surface is very small (several nanometers to micrometers). Owing to the small gap distance and high vibration frequency, squeeze film force should be considered in TM-AFM. To explore the mechanism of squeeze film damping in TM-AFM, three theoretical microcantilever simplified models are discussed innovatively herein: tip probe, ball probe, and tipless probe. Experiments and simulations are performed to validate the theoretical models. It is of great significance to improve the image quality of atomic force microscope.

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