Results 71 to 80 of about 14,180,617 (194)
Research on Nonlinear Dynamics Modeling and Simulation of Harmonic Gear Drive
Jixie chuandong, 2021 Due to the particularity of the structure，the hysteretic stiffness and dynamic friction belong to the inherent properties of harmonic gear drive. Traditional models consider the stiffness as a fixed stiffness or segmented stiffness model，and the friction
Yang Luo +4 more
doaj
Adaptive Friction Compensation for a Novel Two-Axis Differential Microfeed System
Shock and Vibration, 2022 The conventional drive feed system inevitably enters the nonlinear creep region at very low speed. This seriously affects its low-speed performance and tracking accuracy.
Anning Wang +4 more
doaj +1 more source
Adaptive Barrier Control for Nonlinear Servomechanisms with Friction Compensation
Complexity, 2018 This paper proposes an adaptive barrier controller for servomechanisms with friction compensation. A modified LuGre model is used to capture friction dynamics of servomechanisms. This model is incorporated into an augmented neural network (NN) to account
Shubo Wang +3 more
doaj +1 more source
Friction compensation of servo system based on terminal switching function
The Journal of Engineering, 2013 Based on the LuGre friction model, a sliding mode adaptive controller is presented to compensate for the friction in the servo system. The terminal switching function is selected as the sliding mode surface, which can make the error of the system ...
Xue Lin, Zhonghua Wang
doaj +1 more source
Efficient Simulation of a Dynamics System with LuGre Friction
, 2007 Friction is a difficult phenomenon to model and simulate. One promising friction model is the LuGre model, which captures key frictional behavior from experiments and from other friction models.
Bauchau, Olivier, Do, N.B., Ferri, A.A.
core +1 more source
MachinesThis paper presents an enhanced pseudo-rigid body model (PRBM) integrated with the LuGre friction law to analyze the dynamic behavior of flexure-hinge-based piezoelectric stick–slip actuators (PSSAs).
Xuan-Ha Nguyen, Duc-Toan Nguyen
doaj +1 more source
Effects of a straight oil on friction at the tool-workmaterial interface in machining [PDF]
, 2010 Authors would like to express their gratitude to the TOTAL Company for the furniture of the lubricant.The quantification of friction coefficient along the tool-workmaterial interface in machining remains an issue in tribology. This paper aims identifying
RECH, Joël +7 more
core +1 more source
ActuatorsThe dead-zone input and hydraulic cylinder friction of the pump-controlled automatic gauge control (AGC) system introduce significant challenges to the high-precision rolling of lithium battery pole pieces.
Gengting Qiu +4 more
doaj +1 more source
Dynamic Friction Control Using Dynamic Structured RFNN and Friction Parameter Estimator
Journal of Measurement Science and Instrumentation, 2011 A nonlinear dynamic friction control is dealt with using dynamic friction observer and intelligent control.The adaptive dynamic friction observer based on the LuGre friction is proposed to estimate the friction parameters and a directly immeasurable ...
Seong-ik HAN1 +4 more
doaj
Friction compensation and observer-based adaptive sliding mode control of electromechanical actuator
Advances in Mechanical Engineering, 2018 The performance of the electromechanical actuator system is usually affected by the nonlinear friction torque disturbance, model uncertainty, and unknown disturbances.
Mingyue Zhang +5 more
doaj +1 more source