Results 1 to 10 of about 108,802 (204)
Measuring Micro-Friction Torque in MEMS Gas Bearings. [PDF]
Sensors (Basel), 2016 An in situ measurement of micro-friction torque in MEMS gas bearings, which has been a challenging research topic for years, is realized by a system designed in this paper. In the system, a high accuracy micro-force sensor and an electronically-driven table are designed, fabricated and utilized.
Fang X, Liu H.
europepmc +5 more sources
Coupling between static friction force and torque
, 2005 We show that the static friction force which must be overcome to render a sticking contact sliding is reduced if an external torque is also exerted. As a test system we study a planar disk lying on horizontal flat surface.
D. Dowson +6 more
core +2 more sources
Lubricants, 2023 In this paper, a dynamic simulation analysis model was established for CMGB (control moment gyroscope bearing) under the conditions of time-varying moment.
Wenhu Zhang +5 more
doaj +1 more source
High Precision Hybrid Torque Control for 4-DOF Redundant Parallel Robots under Variable Load
Actuators, 2023 As regards the impact and chattering of 4-DOF redundant parallel robots that occur under high-speed variable load operating conditions, this study proposed a novel control algorithm based on torque feedforward and fuzzy computational torque feedback ...
Shengqiao Hu +5 more
doaj +1 more source
A Two-Step Method for Dynamic Parameter Identification of Indy7 Collaborative Robot Manipulator
Sensors, 2022 Accurate dynamic model is critical for collaborative robots to achieve satisfactory performance in model-based control or other applications such as dynamic simulation and external torque estimation.
Meseret Tadese +3 more
doaj +1 more source
The influence of temperature rise on the friction torque of ball screw during low speed operation
Results in Physics, 2023 This study used innovative testing methods to investigate the effect of physical temperature rise on low-speed friction torque of double nut ball screws. 72 experiments were conducted using two samples and three protocols.
Ya-Lan Qiu +3 more
doaj +1 more source
Design and Control of Multi-Plate MR Clutch Featuring Friction and Magnetic Field Control Modes
Sensors, 2022 A magnetorheological (MR) multi-plate clutch was proposed with both mechanical friction mode and magnetic field control modes. The magnetic field control mode was based on an MR fluid coupler that changed its viscous properties according to the density ...
Jin-Young Park +2 more
doaj +1 more source
Chinese Journal of Mechanical Engineering, 2019 The hydro-viscous drive (HVD) has been widely used in fan transmission in vehicles, fans, and scraper conveyors for step-less speed regulation or soft starting.
Hongwei Cui +3 more
doaj +1 more source
Machines, 2023 Wet friction clutch is the key functional component of the high-speed helicopter variable-speed transmission system, which is used to change the power transmission path.
Wuzhong Tan +3 more
doaj +1 more source
Frictional coupling between sliding and spinning motion [PDF]
, 2002 We show that the friction force and torque, acting at a dry contact of two objects moving and rotating relative to each other, are inherently coupled. As a simple test system, a sliding and spinning disk on a horizontal flat surface is considered.
D. Kadau +8 more
core +1 more source