Results 61 to 70 of about 40,484 (277)

Pattern Formation in Non‐Equilibrium Architected Materials

Advanced Materials Technologies, EarlyView.
This article demonstrates an artificial mechanical system ‐ a robotic metamaterial ‐ as an accessible and versatile platform within which to explore and prescribe the reaction‐diffusion driven pattern formation hitherto associated with comparatively less accessible and versatile non‐equilibrium biological and chemical systems.
Vinod Ramakrishnan, Michael J. Frazier
wiley   +1 more source

Implementation of a new flux rotor based on model reference adaptive system for sensorless direct torque control modified for induction motor

Electrical engineering & Electromechanics, 2023
Introduction. In order to realize an efficient speed control of induction motor, speed sensors, such as encoder, resolver or tachometer may be utilized.
R. Saifi
doaj   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Direct torque control of brushless DC drives with reduced torque ripple [PDF]

, 2005
The application of direct torque control (DTC) to brushless ac drives has been investigated extensively. This paper describes its application to brushless dc drives, and highlights the essential differences in its implementation, as regards torque ...
Howe, D., Liu, Y., Zhu, Z.Q.
core   +1 more source

Mechanical Fatigue in Liquid‐Metal Interconnects: Failure Mechanism Analysis and Validation of Improvement Strategies

Advanced Materials Technologies, EarlyView.
Multi‐million cycle reliability for liquid metal stretchable electronics is achieved through a continuous cycle of mechanical testing, failure mode and mechanism analysis and implementing subsequent mitigation strategies. ABSTRACT Stretchable electronics that combine mechanical compliance with reliable electrical performance are essential for ...
Lennert Purnal, Maximilian Krack, Parth Vinayakrao Sewlikar, Bart Ruttens, Tom Hauffman, Iris De Graeve, Wim Deferme, Michaël Daenen, Monika Rai   +8 more
wiley   +1 more source

An improved indirect instantaneous torque control strategy of switched reluctance motor drives for light electric vehicles

Energy Reports, 2020
The switched reluctance motors (SRMs) are powerful alternatives for electric vehicles (EVs). However, the high torque ripple is the main obstacle for their acceptance in high-performance applications.
Mahmoud Hamouda, Amir Abdel Menaem, Hegazy Rezk, Mohamed N. Ibrahim, László Számel   +4 more
doaj   +1 more source

Minimization of torque ripple in switched reluctance motor drives using direct instantaneous torque control

RE&PQJ
Torque ripple is an inherent characteristic of switched reluctance motor drives due to its double salient geometry and it is a serious drawback in applications that require smooth torque and high dynamic performances. This paper presents some contributions to the minimization of torque ripple in SRM using direct instantaneous torque control (DITC ...
null J. Castro, null P. Andrada, null B. Blanqué   +2 more
openaire   +1 more source

Fabric‐Based Wearable Robotic Exoskeleton Gloves: Advancements and Challenges

Advanced Materials Technologies, EarlyView.
This review highlights interdisciplinary technological advances in fabric‐based robotic gloves, focusing on progress in design, fabrication, actuation, sensing, control, and power and energy requirements. It also addresses performance testing and validation, including biomechanical, strength, functional, user experience, and durability assessments, to ...
Ayse Feyza Yilmaz, Gökhan Ince, Ozgur Atalay   +2 more
wiley   +1 more source

Different biomechanical effects of clear aligners in bimaxillary space closure under two strong anchorages: finite element analysis

Progress in Orthodontics, 2022
Background Clear aligner (CA) treatment has been gaining popularity, but the biomechanical effects of CAs in bimaxillary dentition have not been thoroughly investigated.
Jun-qi Liu, Guan-yin Zhu, Yi-gan Wang, Bo Zhang, Shuang-cheng Wang, Ke Yao, Zhi-he Zhao   +6 more
doaj   +1 more source

Sliding modes in electrical drives and motion control [PDF]

, 2011
In this paper application of Sliding Mode Control (SMC) to electrical drives and motion control systems is discussed. It is shown that in these applications simplicity in implementation makes concepts of SMC a very attractive design alternative ...
Asada, Chaen, David, Derdiyok, Izosimov, Jezernik, Khatib, Rao, Utkin, Utkin, Utkin, Yan, Şahin, Šabanovic, Šabanovic, Šabanovic, Šabanovic, Šabanović   +17 more
core   +2 more sources