کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
615248 | 1454850 | 2012 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Stiffness and damping of liquid crystal lubricating film under electric field Stiffness and damping of liquid crystal lubricating film under electric field](/preview/png/615248.png)
In this paper, a controllable sliding bearing system, in which a liquid crystal was applied as a lubricant, was constructed, and experiments were conducted to study its controllability and dynamic properties. In the present system, a sinusoidal load was applied to the bearing pad by a magnetic exciter and the equivalent spring and damping constants were identified under various electric fields, sliding velocities, and film thicknesses. Results show that the applied electric field strength had a great effect on the damping properties of the liquid crystal film, whereas it had less effect on the equivalent spring constant.
► Controllable sliding bearing system, in which a liquid crystal was applied as a lubricant.
► Film thickness was changed according to the electric voltage applied to lubricant.
► Equivalent spring and damping constants under various electric fields.
► Equivalent damping coefficient was increased under an electric field compared to the case without an electric field.
Journal: Tribology International - Volume 54, October 2012, Pages 32–37