Results 11 to 20 of about 89,048 (265)

Analysis of Vibration Characteristics of Centrifugal Pump Mechanical Seal under Wear and Damage Degree

open access: yesShock and Vibration, 2021
Mechanical seal is a kind of shaft sealing equipment. Face wear is one of the main causes of mechanical seal failure. Mechanical seal condition is also related to the reduction of energy consumption and carbon emission.
Yin Luo   +5 more
doaj   +1 more source

Prediction and Sound Quality Analysis of Tire Pattern Noise Based on System Identification by Utilizing an Optimal Adaptive Filter

open access: yesApplied Sciences, 2019
Identifying the cause of vehicle noise is a basic requirement for the development of low-noise vehicles. The tire pattern noise depends on the tire itself and causes complex and unpredictable sounds.
Sang-Kwon Lee   +3 more
doaj   +1 more source

Texture Signals in Whisker Vibrations

open access: yesJournal of Neurophysiology, 2006
Rodents excel in making texture judgments by sweeping their whiskers across a surface. Here we aimed to identify the signals present in whisker vibrations that give rise to such fine sensory discriminations. First, we used sensors to capture vibration signals in metal whiskers during active whisking of an artificial system and in natural whiskers ...
Hipp, J.   +6 more
openaire   +5 more sources

A New Method for Active Cancellation of Engine Order Noise in a Passenger Car

open access: yesApplied Sciences, 2018
This paper presents a novel active noise cancellation (ANC) method to reduce the engine noise inside the cabin of a car. During the last three decades, many methods have been developed for the active control of a quasi-stationary narrowband sinusoidal ...
Sang-Kwon Lee   +3 more
doaj   +1 more source

Vibration Source Signal Separation of Rotating Machinery Equipment and Robot Bearings Based on Low Rank Constraint

open access: yesApplied Sciences, 2021
With the development of industrial robots and other mechanical equipment to a higher degree of automation, mechanical systems have become increasingly complex. This represents a huge challenge for condition monitoring.
Zhiyang He   +4 more
doaj   +1 more source

Sparse Optimization of Vibration Signal by ADMM [PDF]

open access: yesJournal of Applied Mathematics, 2017
In this paper, the alternating direction method of multipliers (ADMM) algorithm is applied to the compressed sensing theory to realize the sparse optimization of vibration signal. Solving the basis pursuit problem for minimizing theL1norm minimization under the equality constraints, the sparse matrix obtained by the ADMM algorithm can be reconstructed ...
openaire   +3 more sources

Analysis and selection of eigenvalues of vibration signals in cutting tool milling

open access: yesAdvances in Mechanical Engineering, 2022
This paper designs an experimental scheme to monitor the tool wear state by extracting the vibration signal of tool wear. The data acquisition and signal processing hardware includes a T-type cutting tool, a vibration sensor, an amplifier, a data ...
Liqiang Wang   +3 more
doaj   +1 more source

Frequency of Vibration Signals Generated in Metal Lapping Process. Model of Generation of Vibration Signals.

open access: yesJournal of the Japan Society for Precision Engineering, 1999
This paper describes the generation mechanism of sound caused by mechanical actions of abrasives under lapping process. It has been shown that the surface roughness of the work can be monitored in process by detecting the power level of the vibration signals, in the frequency range of 1-3kHz.
OSADA, Tasuku   +2 more
openaire   +3 more sources

Fault identification of high voltage circuit breaker trip mechanism based on PSR and SVM

open access: yesIET Generation, Transmission & Distribution, 2023
The trip mechanism is a weakness in circuit breakers. Traditional fault identification based on the coil current is difficult to report early mechanical defects such as coil‐plunger jam.
Jiangjun Ruan   +5 more
doaj   +1 more source

On a Stochastic Regularization Technique for Ill-Conditioned Linear Systems

open access: yesOpen Engineering, 2019
Knowledge about the input–output relations of a system can be very important in many practical situations in engineering. Linear systems theory comes from applied mathematics as an efficient and simple modeling technique for input–output systems ...
Moura Henrique Gomes   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy