Results 111 to 120 of about 25,993 (241)

Effects of inclination angle and confining pressure on triaxial unloading-induced slip behaviors of shale fractures

Frontiers in Earth Science
To explore the effects of fracture inclination angle θ and confining pressure σ3t on the slip behaviors and friction properties of fractures, the triaxial unloading-induced slip experiments were performed on the shale fractures. The results show that the
Yi Liu, Yi Liu, Zihan Li, Shisen Zhao, Jian Jiang, Chao Yuan   +5 more
doaj   +1 more source

Discovering Stick-Slip-Resistant Servo Control Algorithm Using Genetic Programming. [PDF]

Sensors (Basel), 2022
Bożek A.
europepmc   +1 more source

Identifying Physical Interactions in Contact‐Based Robot Manipulation for Learning from Demonstration

Advanced Robotics Research, EarlyView.
Robots can learn manipulation tasks from human demonstrations. This work proposes a versatile method to identify the physical interactions that occur in a demonstration, such as sequences of different contacts and interactions with mechanical constraints.
Alex Harm Gert‐Jan Overbeek, Herman van der Kooij, Douwe Dresscher, Mark Vlutters   +3 more
wiley   +1 more source

Stick-slip vibration characteristics of drilling tool during drilling in coal seam with gangue. [PDF]

Sci Prog, 2022
Han X, Li P, Xue L, Xu J.
europepmc   +1 more source

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

Advanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska, Kaushik Jayaram, Nicole Xu   +2 more
wiley   +1 more source

Design of large-span stick-slip freely switchable hydrogels via dynamic multiscale contact synergy. [PDF]

Nat Commun, 2022
Zhang Z, Qin C, Feng H, Xiang Y, Yu B, Pei X, Ma Y, Ma Y, Zhou F.   +8 more
europepmc   +1 more source

Edible Pouch Motors

Advanced Robotics Research, EarlyView.
Edible robotics is an emerging field that leverages edible materials to construct robotic systems. This study presents a method to create thin, lightweight, yet powerful edible soft actuators, namely edible pouch motors. The successful operation of these edible actuators and grippers renders their potential to advance future developments in edible ...
Keigo Takahashi, Kazuma Takai, Ryuma Niiyama, Jun Shintake   +3 more
wiley   +1 more source

Mechanical behavior and micro-crack propagation mode of fault stick–slip under various roughness conditions

Geomechanics and Geophysics for Geo-Energy and Geo-Resources
Characterized by depressions and elevations, the rough surfaces of faults are prone to stress concentration and energy accumulation, leading to localized rupture in the upper and lower blocks. These regions are more susceptible to stick–slip instability,
Qianbai Zhao, Yong Zhao, Tianhong Yang, Shuhong Wang   +3 more
doaj   +1 more source

High-temporal-resolution quasideterministic dynamics of granular stick-slip. [PDF]

Sci Rep, 2021
Nguyen TTT, Doanh T, Le Bot A, Dalmas D.
europepmc   +1 more source

A Superlubricated Magnetically Steerable Microcatheter with Integrated Optical and Fluidic Channels

Advanced Robotics Research, EarlyView.
A magnetically steerable microcatheter with integrated optical and fluidic channels is developed for multifunctional navigation in tortuous anatomical environments. A surface‐grafted hydrogel coating enables low‐friction actuation. The device demonstrates stable light and fluid delivery during magnetic manipulation, offering a compact platform for ...
Yuntian Du, Ruokun He, Luqi Li, Hesheng Wang, Zhuo‐Chen Ma, Bing Han   +5 more
wiley   +1 more source