Results 51 to 60 of about 14,180,617 (194)
Nonlinear dynamics of controlled release mechanism under boundary friction
Friction bounds the lower performance in control applications. Effective product modeling of controlling mechanisms and capturing the nonlinearity imposed by friction always attract the attention of researchers.
Jitendra Yadav +3 more
doaj +1 more source
Friction compensation based on LuGre model
We consider a tracking problem for mechanical systems. It is assumed that feedback controller is designed neglecting some disturbances, which could be approximately modeled by a dynamic LuGre friction model.
Rolf Johansson +7 more
core +2 more sources
ABSTRACT Shape memory alloys (SMAs) exhibit excellent self‐centering capability due to their stress‐induced phase transformation, making them highly suitable for applications in resilient infrastructure. This study investigates the seismic performance of reduced‐strength moment‐resisting frames (MRFs) equipped with SMA‐based superelastic friction ...
Faisal Nissar Malik +5 more
wiley +1 more source
Friction, as a nonlinear and complex phenomenon, significantly affects the performance of mechanical systems requiring high-precision motion control and force feedback.
Yuhan Bi +4 more
doaj +1 more source
Tendon‐sheath mechanisms are widely used in various robotic systems for remote position transmission, including aerospace vehicles, flexible rescue robots, dexterous robotic hands, exoskeleton robots, soft wearable devices, industrial robots, and flexible surgical robots.
Jiaqi Li, Qian Gao
wiley +1 more source
ABSTRACT An experimental campaign was undertaken to demonstrate the applicability of the Bouc–Wen hysteretic model to describe the hysteretic system of the recent Framatome dimple‐less spacer grid design for Pressurized Water Reactors. The experimental setup subjected a reduced‐length fuel rod, supported at both ends by dimple‐less grids, to forced ...
Giovanni Ferrari +3 more
wiley +1 more source
A 2D Approach to Predict the High‐Cycle Fatigue Life of Clinched Joints
ABSTRACT Clinching is a widely adopted joining technique in the automotive industry, enabling the fabrication of lightweight structures from dissimilar sheet materials. Accurate prediction of the fatigue life of clinched joints is essential for ensuring structural safety and minimizing development costs.
Chin Chen +2 more
wiley +1 more source
High-Fidelity Fin–Actuator System Modeling and Aeroelastic Analysis Considering Friction Effect
Both the dynamic characteristics and structural nonlinearities of an actuator will affect the flutter boundary of a fin–actuator system. The actuator models used in past research are not universal, the accuracy is difficult to guarantee, and the ...
Jin Lu, Zhigang Wu, Chao Yang
doaj +1 more source
ABSTRACT High‐precision trajectory tracking control of space flexible manipulator represents a significant research focus of contemporary research and poses great challenges in both academia and engineering. To address the issue of low control precision in space flexible manipulator, which arises from highly nonlinear dynamics in complex spacecraft ...
Yongquan Li +4 more
wiley +1 more source
Further investigation on LuGre friction force model under normal load variations [PDF]
A large number of friction force models has been proposed in the literature to include the different properties and represent the frictional behavior with more detail [1, 2].
Flores, Paulo +4 more
core +1 more source

