Results 11 to 20 of about 354,663 (307)
Analysis of vibration and acoustic signals for noncontact measurement of engine rotation speed [PDF]
, 2020 The non-contact measurement of engine speed can be realized by analyzing engine vibration frequency. However, the vibration signal is distorted by harmonics and noise in the measurement.
Martinek, Radek +4 more
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A method for vibration-based structural interrogation and health monitoring based on signal cross-correlation [PDF]
, 2011 Vibration-based structural interrogation and health monitoring is a field which is concerned with the estimation of the current state of a structure or a component from its vibration response with regards to its ability to perform its intended function ...
Trendafilova, Irina
core +2 more sources
A New Method for Active Cancellation of Engine Order Noise in a Passenger Car
Applied 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
Shock 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
Applied 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
Texture Signals in Whisker Vibrations
Journal 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
Functional Diversity of Vibrational Signaling Systems in Insects
Annual Review of Entomology, 2023 Communication by substrate-borne mechanical waves is widespread in insects. The specifics of vibrational communication are related to heterogeneous natural substrates that strongly influence signal transmission. Insects generate vibrational signals primarily by tremulation, drumming, stridulation, and tymbalation, most commonly during sexual behavior ...
VirantDoberlet, Meta +3 more
openaire +2 more sources
Analysis and selection of eigenvalues of vibration signals in cutting tool milling
Advances 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
Sparse Optimization of Vibration Signal by ADMM [PDF]
Journal 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
Fault Detection of Gearbox from Inverter Signals Using Advanced Signal Processing Techniques [PDF]
, 2012 The gear faults are time-localized transient events so time-frequency analysis techniques (such as the Short-Time Fourier Transform, Wavelet Transform, motor current signature analysis) are widely used to deal with non-stationary and nonlinear signals ...
Ball, Andrew +3 more
core +1 more source