Tribology Online, 2013 The motored engine friction torque test has been developed for the purpose of evaluating various additive formulations. Difference in frictional behavior using different additive chemistries were observed and the importance of the additive chemistry for ...
Nobuo Ushioda, Yasuhiro Ogasawara
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Research on Dynamic Seal Friction Torque Compensation for a Low-Slow-Small UAV Tracking System
IEEE Access, 2023 To ensure reliable and accurate operation in a complex field environment for Low-Slow-Small unmanned aerial vehicle (LSS-UAV) tracking systems, a dynamic seal shafting structure consisting of a labyrinthine structure and a magnetic fluid seal ring is ...
Zhuqiu Gai, Jinsong Wang
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Experimental investigation of the influence of the FSW plunge processing parameters on the maximum generated force and torque [PDF]
, 2010 The paper presents the results of an experimental investigation, done on the friction stir welding (FSW) plunging stage. Previous research works showed that the axial force and torque generated during this stage were characteristic for a static ...
BIGOT, Régis +3 more
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Simulation Analysis of Friction Moment Characteristic of Rolling-sliding Bearing
Jixie chuandong, 2021 It is difficult to measure the friction torque of bearing parts in practice. In order to study the variation law of the friction torque of rolling-sliding bearings and the influence of the structure parameters on it， the simulation analysis of rolling ...
Liming Lu, Zhi Niu, Jinfu Lu, Fu Li
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A Friction Disturbance Compensation Method for Electromechanical Actuator Based on Fractional Order Adaptive Neural Network [PDF]
Hangkong bingqiFriction torque disturbance affects the tracking performance of electromechanical actuator servo system, bringing position and speed tracking errors, and even may leading to instability of the servo system.
Chen Yufeng, Xu Xiaolu, Zhang Jinpeng, Zhang Kunfeng, Yue Qiang, Zhang Wenjing
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Velocity Dependence in the Cyclic Friction Arising with Gears [PDF]
, 2001 Recent research on friction in robot joints and transmission systems has considered meshing friction a position-dependent friction component. However, in this paper we show experimental evidence that meshing friction depends highly on joint speed.We ...
Appenzeller, J. +4 more
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Experimental Determination of the Coefficient of Friction on a Screw Joint
Applied Sciences, 2022 This paper deals with the coefficient of determination of screw connection friction between the thread and the matrix. The coefficient of friction was measured using a laboratory device with an M20 screw connection without any grease and, subsequently ...
Jozef Mascenik, Tomas Coranic
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On Hirth Ring Couplings: Design Principles Including the Effect of Friction [PDF]
, 2018 Rings with Hirth couplings are primarily used for the accurate positioning of axial-symmetric components in the machine tool industry and, generally, in mechanical components. It is also possible to use Hirth rings as connection tools.
Croccolo, Dario +5 more
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Surface micromachined mechanisms and micromotors [PDF]
, 1991 Electric micromotors are sub-millimeter sized actuators capable of unrestrained motion in at least one degree of freedom. Polysilicon surface micromachining using heavily phosphorus-doped LPCVD polysilicon for the structural material, LPCVD silicon ...
Mehregany, Mehran, Tai, Yu-Chong
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Simulations versus tests for dynamic engagement characteristics of wet clutch
Cognitive Robotics, 2021 In this paper, the dynamic engagement characteristics of wet clutch are simulated by finite element method. In the fluid friction, the average Reynolds equation is amended and dimensionless parameters are involved, which is applied to calculate the ...
Zhen Zhang, Liucun Zhu, Xiaodong Zheng
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