Results 11 to 20 of about 461,938 (307)

The Early Diagnosis of Rolling Bearings’ Faults Using Fractional Fourier Transform Information Fusion and a Lightweight Neural Network

open access: yesFractal and Fractional, 2023
In response to challenges associated with feature extraction and diagnostic models’ complexity in the early diagnosis of bearings’ faults, this paper presents an innovative approach for the early fault diagnosis of rolling bearings.
Fengyun Xie   +3 more
doaj   +1 more source

A pattern recognition method of lower limb movements based on convolutional neural network

open access: yesJournal of Hebei University of Science and Technology, 2022
In order to solve the problems of low data and low recognition rate in the current pattern recognition technology of lower limb movements,a new lower limb movement pattern recognition method based on convolutional neural network was proposed.The lower ...
Xia ZHANG, Dong ZHAO, Sihan TAO
doaj   +1 more source

A Small Target Localization Method Based on the Magnetic Gradient Tensor

open access: yesMicromachines, 2022
Currently, many small target localization methods based on a magnetic gradient tensor have problems, such as complex solution processes, poor stability, and multiple solutions.
Bo Wang   +4 more
doaj   +1 more source

Displacement Model of Giant Magnetostrictive Actuator for Direct-Drive Injector

open access: yesActuators, 2022
Aiming at the inherent problems of non-direct-drive injectors, such as long oil circuits and a difficult precise control of the needle stroke, based on the structure of a direct-drive injector and combined with the demand for the needle drive of a truck ...
Zhaoqi Zhou   +5 more
doaj   +1 more source

Longitudinal vibration model and analytic study of submarine propulsion shafting

open access: yesZhongguo Jianchuan Yanjiu, 2018
[Objectives] In order to solve the problem of the longitudinal vibration of submarine propulsion shafting,[Methods] complex submarine propulsion shafting is simplified to a uniform stepped shaft continuum model, Wave Propagation Analysis (WPA) is used ...
XU Da   +4 more
doaj   +1 more source

Gear Fault Feature Extraction Based on Fuzzy Function and Improved Hu Invariant Moments

open access: yesIEEE Access, 2020
To intelligently identify gear fault types on the basis of gear vibration signals, due to the non-linear and non-stationary characteristics of gear vibration signals, a fuzzy function is used to represent the gear vibration signals in different states as
Chun Lv, Peilin Zhang, Dinghai Wu
doaj   +1 more source

Electric Vehicle Valet

open access: yesCoRR, 2018
We propose a novel way to use Electric Vehicles (EVs) as dynamic mobile energy storage with the goal to support grid balancing during peak load times. EVs seeking parking in a busy/expensive inner city area, can get free parking with a valet company in exchange for being utilized for grid support.
Ali Khodabakhsh 0002   +5 more
openaire   +2 more sources

Improved Virtual Gyroscope Technology Based on the ARMA Model

open access: yesMicromachines, 2018
In view of the large output noise and low precision of the Micro-electro-mechanical Systems (MEMS) gyroscope, the virtual gyroscope technology was used to fuse the data of the MEMS gyroscope to improve its output precision.
Jinlong Song   +3 more
doaj   +1 more source

Radial mechanics and simulation analysis of main-auxiliary structure metal spring wheel

open access: yesJournal of Materials Research and Technology, 2019
Aiming at the various special circumstances of automobile driving process, a main-auxiliary structure metal spring wheel is proposed, which prevents effectively the abrupt accident caused by blown or punctured tire.
Zhenglong Zhao   +4 more
doaj   +1 more source

Random Error Analysis of MEMS Gyroscope Based on an Improved DAVAR Algorithm

open access: yesMicromachines, 2018
In view that traditional dynamic Allan variance (DAVAR) method is difficult to make a good balance between dynamic tracking capabilities and the confidence of the estimation.
Jinlong Song   +3 more
doaj   +1 more source

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