Results 51 to 60 of about 29,340 (223)
Application of Multiple Unipolar Axial Eddy Current Brakes for Lightweight Electric Vehicle Braking
Applied Sciences, 2020 The braking system in a vehicle has the main role of slowing down the speed or stopping the moving vehicle. Compared to mechanical braking, which utilizes friction, non-contact braking has several advantages, including longer lifetime and less ...
Mufti Reza Aulia Putra +4 more
doaj +1 more source
Hierarchical Artificial Muscle with Nonlinear Elasticity for Antagonistic and Cyclic Robotics
Advanced Science, EarlyView.We construct hierarchical muscles by plying nylon fibers around a heating wire. The hierarchical muscle shows a J‐shaped passive curve, which shows benefit in antagonistic muscle pair and work accumulation mechanism. We also develop a computational, first‐principle model to understand the physics of both active actuation stroke and passive J‐curve ...
Samuel Tsai +15 more
wiley +1 more source
Light‑Driven Propulsion of Graphene Aerogels in Microgravity
Advanced Science, EarlyView.Ultralight graphene aerogels convert laser light into thrust. Parabolic‐flight experiments directly compare their motion in microgravity and at 1 g, revealing order‐of‐magnitude enhancements in distance, velocity, and transient thrust when weight and friction are removed (∼50 times enhancement).
Omnia Khattab +10 more
wiley +1 more source
Jixie chuandong, 2012 A constant torque braking strategy for tracked vehicle hydrostatic and hydraulic auxiliary braking system is studied.Combining the test and theoretical analysis results,the influence law of coupler filling liquid quantity and hydraulic pump discharge ...
吕建刚 +4 more
doaj
International Journal of TechnologyThe regenerative ABS is developed to avoid slip and to regenerate energy using two types of braking: friction and motor. This paper discusses the experimental results of combining the two types of braking which are applied to a quarter-electric ...
Katherin Indriawati +4 more
doaj +1 more source
Actuators, 2023 Magnetorheological fluid brakes are a promising technology for developing high-performance drive-by-wire braking systems due to their controllability and adaptability. This research aims to design an optimal magnetorheological fluid brake for motorcycles
Pacifique Turabimana, Jung Woo Sohn
doaj +1 more source
The braking index of millisecond magnetars [PDF]
, 2017 We make the first measurement of the braking index $n$ of two putative millisecond magnetars born in short gamma-ray bursts. We measure $n=2.9\pm0.1$ and $n=2.6\pm0.1$ for millisecond magnetars born in GRB 130603B and GRB 140903A respectively.
Lasky, Paul D. +3 more
core +3 more sources
The Degradation of Access‐Based Business Models: Customer Misbehavior and Shared Mobility
Business Strategy and the Environment, EarlyView.ABSTRACT Access‐based services are considered one of the strategies to embed sustainability in business models. Yet, because the evolution of these business models has been overlooked, we do not know whether their promise to create triple value is sustained.
Andres Camacho, Carmen Valor
wiley +1 more source
ActuatorsSingle-phase input rectifier brushless DC motor drives with a small film capacitor have many advantages, such as high power density and high reliability.
Wei Chen, Jialong Wu, Xinmin Li, Chen Li
doaj +1 more source
Effect of Flux Barriers on Short-Circuit Current and Braking Torque in Dual Three-Phase PM Machine
Machines, 2022 This paper investigates the influence of stator flux barriers on the short-circuit current (SCC) and braking torque of a dual three-phase permanent magnet (PM) synchronous machine. By optimizing the position and width of stator flux barriers, the machine
Lin Liu, Kai Wang, Lingling Guo, Jian Li
doaj +1 more source