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Ke Chen, Bo Xiao, Chunyang Wang, Xuelian Liu, Shuning Liang and Xu Zhang
In today?s automation control systems, the PID controller, as a core technology, is widely used to maintain the system output near the set value. However, in some complex control environments, such as the application of ball screw-driven rotating motors,...
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Soo-Min Kim, Dae W. Kim and Moon K. Kwak
The membrane-type air spring can be used to suppress lateral vibration of a vibration isolation table. However, compared to voice coil actuators, pneumatic actuators are difficult to use for precise vibration control, because servo valves have nonlinear ...
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Mohammad Ali Sadeghian, Jian Yang, Feiliang Wang and Xinger Wang
In this paper, an inerter-based device for structural vibration control is proposed with which inertance can be altered relying on the frequency changes of the excitation. In this manner, a tuned mass damper is developed in such a way that it is assemble...
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Geon-Ho Shin and Jang-Wook Hur
A ball screw is a mechanical part that converts rotational motion into translational motion, but when it receives an excessive axial load, permanent deformation occurs inside. As ball screws are mostly used for precise driving, permanent deformation has ...
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Tiewei Sun, Min Wang, Xiangsheng Gao and Yingjie Zhao
In order to eliminate the calculation error of the Hertzian elastohydrodynamic contact stress due to the asymmetry of the contact region of the helix raceway, a non-Hertzian elastohydrodynamic contact stress calculation method based on the minimum excess...
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Yaser Doaei, Seyed Ehsan Aghakouchaki Hosseini, Amir Momenzadeh and Ehsan Harirchian
Space frame structures satisfy the ever-increasing requirements of societies for providing a variety of structural forms and architectural spaces with special characteristics, such as aesthetic and free-form features, population-wise capacities, and stru...
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Cheng-Hsien Wu, Kun-Chun Chen, Yang-Sung Lin, Yuan-Chih Liu and Chun-Li Lin
This study evaluates the biomechanical performance of a new multi-axial alveolar distractor using an animal study. The multi-axial alveolar distractor is designed with a ball and socket joint mechanism that can rotate up to 60° toward the buccal/lingual ...
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Yi-Cheng Huang, Xiang-Yuan Chen
Pág. 29 - 33
This paper examines the frequency response relationship between the ball screw nut preload, ball screw torsional stiffness variations and table mass effect for a single-axis feed drive system. Identification for the frequency response of an industrial ba...
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Yi-Cheng Huang, Jing-Hong Zheng
Pág. 94 - 99
This paper studies the diagnostic results of hollow ball screws with different ball nut preload through the support vector machine (SVM) process. The method is testified by considering the use of ball screw pretension and different ball nut preload. SVM ...
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Sheng-Liang Chen, Hoai-Nam Dinh, Van-Thanh Nguyen
Pág. 34 - 39
Injection Molding Machine (IMM) is one of the most important equipment in plastic industry. As a cyclic process, injection molding can be divided into three steps includes filling process, packing-holding process and cooling process, among which filling ...
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