Results 71 to 80 of about 10,082 (264)

Hard‐Magnetic Soft Millirobots in Underactuated Systems

Advanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang, Zixuan Zhang, Bingyan Li, Junkai Wang, Hongcheng Gu   +4 more
wiley   +1 more source

DEM investigation on characteristics of rolling resistance for modelling particle shape

EPJ Web of Conferences, 2017
To examine the capability of rolling resistance to model the effects of particle shape, two sets of samples, composed of binary clumped particles and circular particles with rolling resistance, are tested in DEM simulation.
Zhou Lunlun, Chu Xihua, Xu Yuanjie
doaj   +1 more source

Nonlocomotory Robotic Strategies for Dynamic Rotation Control in Terrestrial Robots: A Review

Advanced Robotics Research, EarlyView.
Terrestrial robots increasingly require rapid body rotation to maintain stability and agility in complex environments. This review shows nonlocomotory rotational control strategies that operate without ground contact, including reaction wheels, tails, bars, limbs, and thrusters.
Y. Liang, J. An, X. Zheng, D. Wang, S. Wang, X. Wang, P. Zhu, J. Pei, S. Li, J. Paripurana, Y. Han, Z. Tang, X. Gan, Q. He, X. Ma   +14 more
wiley   +1 more source

Acquisition of molecular rolling lubrication by self-curling of graphite nanosheet at cryogenic temperature

Nature Communications
Friction as a fundamental physical phenomenon dominates nature and human civilization, among which the achievement of molecular rolling lubrication is desired to bring another breakthrough, like the macroscale design of wheel.
Panpan Li, Wenhao He, Pengfei Ju, Li Ji, Xiaohong Liu, Fan Wu, Zhibin Lu, Hongxuan Li, Lei Chen, Jingzhou Liu, Huidi Zhou, Jianmin Chen   +11 more
doaj   +1 more source

Friction in Oil-Lubricated Rolling–Sliding Contacts with Technical and High-Performance Thermoplastics

Lubricants
Thermoplastics show great potential due to their lightweight design, low-noise operation, and cost-effective manufacturing. Oil lubrication allows for their usage in high-power-transmission applications, such as gears.
Ferdinand Schmid, Thomas Lohner, Karsten Stahl   +2 more
doaj   +1 more source

Testing the assumption of linear dependence between the rolling friction torque and normal force

MATEC Web of Conferences, 2017
Rolling friction is present in all nonconforming bodies in contact. A permanent topic is the characterization of the moment of rolling friction. A number of authors accept the hypothesis of linear dependency between the rolling torque and the normal ...
Alaci Stelian, Irimescu Luminita, Popescu Marian-Adrian, Fodorcan Daniel, Amarandei Dumitru, Ciornei Florina-Carmen   +5 more
doaj   +1 more source

Effect of Cold Rolling on the Mechanical Properties and Formability of FSWed Sheets in AA5754-H114

Metals, 2018
The effect of cold rolling, performed after friction stir welding (FSW), on the mechanical properties and formability of joints in AA5754-H114 aluminium alloy was investigated.
Giuseppe Casalino, Mohamad El Mehtedi, Archimede Forcellese, Michela Simoncini   +3 more
doaj   +1 more source

Soft Actuators Integrated with Control and Power Units: Approaching Wireless Autonomous Soft Robots

Advanced Robotics Research, EarlyView.
Soft robots exhibit significant development potential in various applications. However, there are still key technical challenges regarding material improvement, structure design and components integration. This review focuses on the development and challenge of soft actuators, power components, and control components in untethered intelligent soft ...
Renwu Shi, Feifei Pan, Xiaobin Ji
wiley   +1 more source

A State‐Adaptive Koopman Control Framework for Real‐Time Deformable Tool Manipulation in Robotic Environmental Swabbing

Advanced Robotics Research, EarlyView.
This work presents a state‐adaptive Koopman linear quadratic regulator framework for real‐time manipulation of a deformable swab tool in robotic environmental sampling. By combining Koopman linearization, tactile sensing, and centroid‐based force regulation, the system maintains stable contact forces and high coverage across flat and inclined surfaces.
Siavash Mahmoudi, Amirreza Davar, Dongyi Wang   +2 more
wiley   +1 more source

Study of the coefficient of friction and forward slip in cold rolling of stainless steel AISI 430 in Sendzimir mills

Journal of Materials Research and Technology
For most AISI 430 stainless steel applications, aesthetic appeal is mandatory. To avoid the generation of scratches on the strip surface during cold rolling on a Sendzimir mill, forward and backward slip are required to synchronize the speed of the ...
André C.M. Miranda, Carlos L. Neto, Wilian da S. Labiapari, Pedro Henrique R. Pereira, Paulo R. Cetlin, Ariel R. Arias   +5 more
doaj   +1 more source