Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Hu-Tian Feng"'
Publikováno v:
Metals, Vol 12, Iss 12, p 2139 (2022)
Existing studies focusing on the prediction of the preload drag force of linear motion rolling bearing (LMRB) are mainly based on mathematical modeling and vibration signal analysis. Very few studies have attempted to predict the preload drag force o
Externí odkaz:
https://doaj.org/article/d626f6b68cdf4ca5b8f9c397bfd15bfa
Publikováno v:
Advances in Mechanical Engineering, Vol 10 (2018)
Based on the empirical equations for the friction torque of rolling bearings, this article proposes a new model for predicting the friction torque and mechanical efficiency of ball screws. Meanwhile, a novel measuring system is constructed to obtain
Externí odkaz:
https://doaj.org/article/2e4b9213527b49a198eaa539b80f1714
Publikováno v:
Advances in Mechanical Engineering, Vol 9 (2017)
This article presents an experimental investigation into the damping characteristics of a linear damper with a newly designed oil groove. The damping performance of the damper is tested in four different viscosity grades by the sweep frequency method
Externí odkaz:
https://doaj.org/article/42726b02f9d648909080678b3980f2c8
Publikováno v:
Tribology Transactions. 65:592-609
Publikováno v:
Precision Engineering. 73:347-362
The performance of ball screws degrades with two-stage features due to the deteriorating inner mechanism and environmental stress, which lowers the positioning accuracy of the ball screws. It thus affects the accuracy of computer numerical control ma
Publikováno v:
The International Journal of Advanced Manufacturing Technology. 118:3917-3932
Transmission accuracy is one of the most important parameters in ball screw mechanism (BSM); however, very few researches can be found on the transmission error modeling for BSM. Therefore, on the basis of the converting principle of the errors in th
Publikováno v:
The International Journal of Advanced Manufacturing Technology. 118:533-550
Based on the topology analysis of a screw grinder mapping the dressing error of the grinding wheel (DEGW) to the geometric errors of the virtual axis, an improved accuracy model of the screw grinder with 36 geometric errors is established, and an err
Publikováno v:
International Journal of Precision Engineering and Manufacturing. 22:1221-1228
In numerical control machines, the thermal elongation of the ball screw influences the position accuracy. Different rotational speeds lead to different temperature changes at different positions in a ball screw system. In this paper, a new method is
Publikováno v:
Journal of Tribology. 144
Owing to the measurement difficulty and the required time needed to analyze wear processes of ball screws, very few studies have been reported. Here, on the basis of a test bench and a Taylor Hobson surface profilometer, the measuring procedure for t
Publikováno v:
Precision Engineering. 65:72-90
In most applications, preload is applied to double-nut ball screws to improve the positioning accuracy and rigidity. However, the applied preload degrades owing to wear, which lowers the positioning accuracy of the ball screws, and thus affects the a