Results 161 to 170 of about 1,737,791 (396)

An online motor rotor temperature estimation based on BP neural network with experimental data-driven

open access: yesAdvances in Mechanical Engineering
The rotor temperature monitoring is crucial for reliability and performance of permanent magnet synchronous motor. Overheating is the main reason for motor demagnetization, which may lead to power output interruption. However, direct measurement of rotor
Peng Zhiyuan   +9 more
doaj   +1 more source

Computational fluid dynamics model of a quad-rotor helicopter for dynamic analysis [PDF]

open access: yes, 2016
The control and performance of a quad-rotor helicopter UAV is greatly influenced by its aerodynamics, which in turn is affected by the interactions with features in its remote environment. This paper presents details of Computational Fluid Dynamics (CFD)
Bousbaine, Amar   +2 more
core   +2 more sources

A Shear Thickening Colloidal Suspension Functioning via Progressive Impact Jamming with Persistent Lubrication Layer

open access: yesAdvanced Science, EarlyView.
An ionic liquid‐based shear‐thickening fluid (ILSTF) exhibits lubricated dynamics from strong shear thickening to impact‐triggered jamming. A persistent nanometric solvation layer around silica governs both the shear thickening saturation in rheology and jamming front propagation under dynamic impact compression.
Yiran Wu   +6 more
wiley   +1 more source

Feline‐Inspired Robot Enabled by Combustion‐Driven Actuators for Agile Motion and High‐Payload Obstacle Traversal

open access: yesAdvanced Science, EarlyView.
Inspired by nature's competitive maneuvers, this study introduces a combustion‐driven soft actuator that powers a multi‐modal “Jump‐and‐Fly Catbot” (JFC). With millisecond response, high‐force output (over 70 times its weight) and precise control (error within 5%), the robot can jump, fly, hover, and escape from challenging environments, achieving ...
Hongkuan Ma   +4 more
wiley   +1 more source

Advanced Cooling of Rotor in Electrical Motor

open access: yes, 2014
About one fifth of the energy used today is allocated in the transportation sector and most of the vehicles are driven by internal combustion engines. Replacing them with electrical machine would have a positive environmental impact but there is room for improvement of the electric machines.Rotors of the electrical machines in the automotive industry ...
Fröb, Johan, Lykartsis, Odyssefs
openaire   +1 more source

Prediction and Diagnosis for Unsteady Electromagnetic Vibroacoustic of IPMSMs for Electric Vehicles Considering Rotor Step Skewing and Current Harmonics

open access: green, 2023
Shengsen Zhou   +9 more
openalex   +2 more sources

Structural Basis of the Membrane Association by the Conserved RocS Membrane‐Targeting Sequence in Streptococcus

open access: yesAdvanced Science, EarlyView.
Chromosome segregation in Streptococcus pneumoniae depends on RocS, a bitopic protein whose membrane‐anchoring mechanisms were unclear. Using NMR and AFM, this study reveals that the widely conserved RocS anchor binds to membranes via a conserved kink‐helix motif which inserts into lipid nanodomains.
Ana Álvarez‐Mena   +11 more
wiley   +1 more source

Rapid Steam‐Assisted Temperature Swing Adsorption for Direct Air Capture Using a Rotary Adsorber

open access: yesAdvanced Science, EarlyView.
This study presents a direct air capture (DAC) device based on a steam‐regeneration rotary adsorber for high‐purity CO2. Testing of the prototype demonstrates its capability for continuous and stable carbon capture with the potential to achieve ton‐scale.
Junye Wu   +6 more
wiley   +1 more source

How Particle Size Affects Consolidation Behavior, Strain and Properties of Li6PS5Cl Fast Ionic Conductors

open access: yesAdvanced Energy Materials, EarlyView.
The densification process of Li6PS5Cl powders with varying particles size distributions reveals differences in smaller and larger distributions. Higher strain is revealed for the smaller particle size distribution from X‐ray diffraction. Discrete element method simulations uncover that the reason for the higher strain is not the particle size itself ...
Vasiliki Faka   +14 more
wiley   +1 more source

Approach to Design of Piezoelectric Energy Harvester for Sensors on Electric Machine Rotors

open access: yesEnergies
The reliability and efficiency of components are key aspects in the automotive industry. Electric machines become the focus of development. Thus, improvements in efficiency and reliability have gained significance.
Lukas Brandl   +2 more
doaj   +1 more source

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