{"title":"Experimental Method for Determining Energy Losses in Oscillatory Systems Based on ARMA Modeling","authors":"I. A. Karpov, Yu. I. Bobrovnitskii","doi":"10.1134/S1063771025600329","DOIUrl":null,"url":null,"abstract":"<p><b>Abstract</b>—Damping (dissipation, energy losses) is the most important parameter of all mechanical oscillatory systems, in addition to elasticity and inertia. Its special role is due to the fact that it directly determines the maximum amplitudes of free and forced vibrations of systems and, accordingly, their dynamic strength and reliability, noise and ecology. Due to the poor study of the physical processes of damping, it is measured experimentally. This article presents one of the new efficient methods for experimental determination of losses, characterized by simplicity, high accuracy and a wide range of applicability. The main attention is paid to substantiation of the method, its properties, and its verification in numerical and laboratory experiments. The method is recommended for measuring the losses of composite highly damped oscillatory systems, where known methods do not work or are too complex.</p>","PeriodicalId":455,"journal":{"name":"Acoustical Physics","volume":"71 2","pages":"144 - 162"},"PeriodicalIF":1.2000,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acoustical Physics","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1134/S1063771025600329","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ACOUSTICS","Score":null,"Total":0}
引用次数: 0
Abstract—Damping (dissipation, energy losses) is the most important parameter of all mechanical oscillatory systems, in addition to elasticity and inertia. Its special role is due to the fact that it directly determines the maximum amplitudes of free and forced vibrations of systems and, accordingly, their dynamic strength and reliability, noise and ecology. Due to the poor study of the physical processes of damping, it is measured experimentally. This article presents one of the new efficient methods for experimental determination of losses, characterized by simplicity, high accuracy and a wide range of applicability. The main attention is paid to substantiation of the method, its properties, and its verification in numerical and laboratory experiments. The method is recommended for measuring the losses of composite highly damped oscillatory systems, where known methods do not work or are too complex.
期刊介绍：
Acoustical Physics is an international peer reviewed journal published with the participation of the Russian Academy of Sciences. It covers theoretical and experimental aspects of basic and applied acoustics: classical problems of linear acoustics and wave theory; nonlinear acoustics; physical acoustics; ocean acoustics and hydroacoustics; atmospheric and aeroacoustics; acoustics of structurally inhomogeneous solids; geological acoustics; acoustical ecology, noise and vibration; chamber acoustics, musical acoustics; acoustic signals processing, computer simulations; acoustics of living systems, biomedical acoustics; physical principles of engineering acoustics. The journal publishes critical reviews, original articles, short communications, and letters to the editor. It covers theoretical and experimental aspects of basic and applied acoustics. The journal welcomes manuscripts from all countries in the English or Russian language.
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