Work

High-frequency nonlinear vibration analysis through low-frequency stereo-camera systems

Year: 2024

Type: article

Abstract: This paper describes a new methodology that expands the capabilities of low-frame, high-resolution stereo-camera systems in studying the dynamic behavior of components in the presence of nonlinear phenomena. A new downsampling technique called the Smoothed Harmonics Analysis (SHA) is proposed. This technique addresses the limitations due to the low-frame rate cameras for the study of high-frequency periodic steady-state nonlinear oscillations. SHA enables accurate reconstruction of downsampled signals, thus opening up numerous potential applications. The feasibility of this technique is demonstrated by analyzing the motion of a beam with nonlinear behavior. The nonlinearity is caused by intermittent contact while the beam is subjected to harmonic excitation.

Source: Mechanical Systems and Signal Processing

DOI: 10.1016/j.ymssp.2024.111821

Authors: Daniele Botto, Serena Occhipinti, Christian Maria Firrone, Paolo Neri

Language: English

Topic: Vibration and Dynamic Analysis

Subfield: Control and Systems Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,830

OpenAlex ID: W4402712113

FWCI: 1.256

Cites: 35

Cited by: 8

Related to: 10