Morphological evolution of silicon surfaces nanopatterned by focused ion beam irradiation. [PDF]
Nanopatterning on solid surface has emerged as an important tool in the field of nanotechnology, nano/micro-electromechanical systems (NEMS/MEMS), photonics, and biotechnology. Among the available techniques, focused ion beam (FIB) enables controlled and
Bhowmik D.
europepmc +2 more sources
When a magnetic bearing is used in the design of a high-speed motor, no friction and wear occur because of the principle of magnetic levitation; however, the size of the entire system increases.
In-Jun Yang +4 more
doaj +2 more sources
Analysis and Suppression of Phase Unbalance Induced Force Ripples in Permanent Magnet Linear Motors
Low force ripples from permanent magnet linear motors (PMLMs) are typically essential requirements in a wide range of demanding control applications with high motion quality.
Qian Wang +4 more
doaj +1 more source
Thrust ripple suppression methods for the flux-switching permanent magnetic machine
Linear flux-switching permanent magnet (LFSPM) machines have high power density and simple robust stator structure,which shows significant potential in long stroke applications.
HAO Wenjuan, WANG Yu
doaj +1 more source
Force and Velocity Ripple Reduction of the New Linear Motor [PDF]
This study presents a new linear motor with an E-core stator and a homopolar permanent magnet (PM) mover. The velocity and force ripples of the motor are effectively reduced by an optimized structure and effective force compensation. Firstly, the mechanical structure, magnetic paths and operation principles are introduced. Force analysis is carried out
Meiling Tang +3 more
openaire +3 more sources
Comparing the force ripple during asynchronous and conventional stimulation [PDF]
ABSTRACTIntroduction: Asynchronous stimulation has been shown to reduce fatigue during electrical stimulation; however, it may also exhibit a force ripple. We quantified the ripple during asynchronous and conventional single‐channel transcutaneous stimulation across a range of stimulation frequencies.
Ryan J, Downey +3 more
openaire +2 more sources
Electromagnetic force ripple suppression strategy of the micro permanent magnet linear motor
In order to make the micro permanent magnet linear motor in this paper have an excellent position response in MEMS application scenarios, an electromagnetic force ripple suppression strategy based on harmonic current injection is proposed. Because of the
Yixuan Zhang +5 more
doaj +1 more source
An Extended Model for Ripple Analysis of 2–4 Phase Resonant Electrostatic Induction Motors
Electrostatic motors are promising forms of actuation for future robotic devices. The study of their different implementations should accelerate their adoption.
Fernando Carneiro +4 more
doaj +1 more source
A new design approach for reduction of force ripple in permanent magnet flux‐switching linear motor
To reduce the force ripple of the permanent magnet flux‐switching linear motor (PMFSLM), a new design approach is suggested by the authors. The detent force is redefined as the composite force of the thrust of the single action of permanent magnet and ...
Zongsheng Zhang, Hao Wang, Hong Chen
doaj +1 more source
Methods for Reducing Cogging Force in Permanent Magnet Machines: A Review
Permanent magnet (PM) machines inevitably suffer from cogging force, which does not contribute to the average output torque (force) but contributes as a type of torque (force) ripple. This paper provides an overview of the cogging force reduction methods
Wenjuan Hao +4 more
doaj +1 more source

