Results 1 to 10 of about 701 (112)
Optically trapped and driven paddle-wheel [PDF]
New Journal of Physics, 2013 We demonstrate the control and rotation of an optically trapped object, an optical paddle-wheel, with the rotation direction normal to the beam axis. This is in contrast to the usual situation where the rotation is about the beam axis.
Theodor Asavei +8 more
doaj +5 more sources
Net traction of a driven wheel as affected by slippage, velocity and wheel load
Journal of the Saudi Society of Agricultural Sciences, 2015 The objective was to assess the effect of velocity at three levels (i.e. 0.8, 1 and 1.2 m/s), slippage at three levels (i.e. 10, 12 and 15%) and three levels of wheel load (i.e.
Hamid Taghavifar, Aref Mardani
doaj +2 more sources
A Parameter-Driven Methodology of Wheel Flat Modeling for Wheel–Rail Impact Dynamics
Applied SciencesA wheel flat is a typical wheel defect that significantly impacts the wheel–rail system, posing substantial challenges to vehicle operation safety. In the existing literature, the wheel flat plane model does not account for the contribution of the width ...
Guangwei Zhao +3 more
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A method of uniform weight distribution between the wheel driving gears
Trudy Odesskogo Politehničeskogo Universiteta, 2014 The article deals with the problem of trailing weight distribution between wheel drivers and the tangent traction creating in the each gear’s contact zone to the supporting surface in full compliance with the wheel gear’s trailing weight.
Leonid M. Petrov, Oleksandr V. Lysyi
doaj +7 more sources
Some simple demonstration experiments involving homopolar motors [PDF]
Revista Brasileira de Ensino de Física, 2007 The ready availability of very strong permanent magnets in the form of rare-earth magnetic alloys such as neodymium-iron-boron has lead to renewed interest in one of the oldest types of electric motors - the homopolar motor.
Seán M. Stewart
doaj +1 more source
Research on a tubeless tire for a mobile robot [PDF]
MATEC Web of Conferences, 2023 Airless tires are used not only in cars, but also in vehicles used in the construction, road, forestry, and robotics industries. In order to develop the construction of an airless tire, its optimization at the stage of their design, a comprehensive ...
Zinko Roman +4 more
doaj +1 more source
Acceleration‐based wheel slip control realized with decentralised electric drivetrain systems
IET Electrical Systems in Transportation, 2022 Traction control is one of the most important functions in vehicle drivetrain systems. When a vehicle is driven on a low‐friction road surface, loss of traction force can cause the driven wheels to spin.
Bowen Jiang +3 more
doaj +1 more source
Development and Usability of a Prototype Upper Extremities Lever-Driven Exercise System
BioMed, 2022 The purpose of this paper is to present the design, construction, and technical aspects of a prototype upper extremities lever-driven exercise system, called FIT-WHEEL (Functional and Intelligent Training system for WHEELchair users), as well as the ...
Themistoklis Tsatalas +9 more
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Advances in Mechanical Engineering, 2022 Aiming to more accurately control the wheel speed of an electric vehicle (EV) driven by four in-wheel motors, a developed whale optimization algorithm-proportional–integral–derivative (KW-WOA-PID) control algorithm is proposed herein.
Rongjie Zhai +3 more
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Simulation of the Wheel-Surface Interaction Dynamics for All-Terrain Vehicles
Applied Mechanics, 2022 In this paper, a new methodology for the numerical simulation of the wheel–surface interaction has been presented. The finite-element method was combined with the discrete-element method, rigid body dynamics, and the advanced wheel–surface friction model.
Tomasz Czapla, Mariusz Pawlak
doaj +1 more source