Results 151 to 160 of about 3,274,537 (356)

Analysis on Cage Dynamic Characteristic of Angular Contact Ball Bearing During Deceleration

open access: yesJixie chuandong, 2019
The deceleration process generally exists in the feed system of CNC machine, and the speed change of the process has a great influence on the dynamic performance of angular contact ball bearing, which has always been little noticed by scholars at home ...
Wenbing Tu   +3 more
doaj  

Fault detection based on instantaneous angular speed measurement and variational mode decomposition [PDF]

open access: diamond, 2018
Sanjin Braut   +3 more
openalex   +1 more source

Broadband angular spectrum differentiation using dielectric metasurfaces

open access: yesNature Communications
Signal processing is of critical importance for various science and technology fields. Analog optical processing can provide an effective solution to perform large-scale and real-time data processing, superior to its digital counterparts, which have the ...
Ming Deng   +6 more
semanticscholar   +1 more source

Mechanical and Microstructural Effects of ZrO2 Nanoparticles in Fe20Cr Oxide Dispersion‐Strengthened Alloys Processed by Laser Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
The influence of oxide nanoparticle synthesis route and concentration on microstructure and high‐temperature performance of additively manufactured oxide dispersion‐strengthened steels is investigated. Comparing laser‐generated and chemically synthesized ZrO2 nanoparticles, the study reveals how dispersion quality, crystal structure and particle size ...
Mareen Goßling   +12 more
wiley   +1 more source

Outliers Identification From Instantaneous Angular Speed Signal Generated by Zebra Tapes [PDF]

open access: gold, 2019
Xiaobo Bi   +6 more
openalex   +1 more source

Multimaterial Approach to Improve the Mechanical Properties of a Novel Modified Auxetic Reentrant Honeycomb Structure

open access: yesAdvanced Engineering Materials, EarlyView.
A multimaterial approach is introduced to improve upon auxetic structures by combining two different polymers into the same reentrant honeycomb structure via additive manufacturing. The deformation behavior as well as the resulting Poisson's ratio are thereby improved significantly.
Alexander Engel   +2 more
wiley   +1 more source

Stiffness characteristics and experimental study of angular contact ball bearings considering the influence of rotational speed

open access: yesAdvances in Mechanical Engineering
The angular contact ball bearings are widely used in various high-speed and precision rotating equipment because of support performance. The contact load of the inner and outer rings is changed because of the centrifugal force of rolling elements caused ...
Runlin Chen   +7 more
doaj   +1 more source

Vacuum‐Formed Composites Based on a Polyolefin and a High Content of Biomass‐Waste Fillers

open access: yesAdvanced Engineering Materials, EarlyView.
It is shown here that by the use of a very ductile polymer matrix, it is possible to vacuum‐form products that contain up to 25% of hard biofillers with still ductile properties. The results are promising and opens up for the use of engineered biocomposites derived from industrial side‐stream biofillers in vacuum‐formed products. A strategy to increase
Susanna K. Källbom   +6 more
wiley   +1 more source

БЕЗДАВАЧЕВЕ КЕРУВАННЯ КУТОВОЮ ШВИДКІСТЮ ДВИГУНІВ ПОСТІЙНОГО СТРУМУ НА ОСНОВІ НАТУРАЛЬНИХ ВЛАСТИВОСТЕЙ СТІЙКОСТІ

open access: yesПраці Інституту електродинаміки Національної академії наук України
In this paper, a speed control system for permanent magnet DC motor is designed which does not require an angular speed sensor. It guarantees asymptotic tracking of the reference angular speed trajectories under the action of a constant unknown load ...
С.М. Пересада   +3 more
doaj   +1 more source

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