{"title":"Time integration algorithm of velocity frequency-weighted root mean square for ship comfort index","authors":"Yan Jin, Liao Jian Bin, Li Han Lin, Yu Hong Liang","doi":"10.1504/ijcat.2023.134078","DOIUrl":null,"url":null,"abstract":"The imposition of excessive ship vibration induces corresponding motions and forces within the human body, possibly causing discomfort and degraded levels of comfort and health. The ISO criterion is designed to limit potential vibration to improve the crew comfort. Frequency weighting values are used to evaluate whole-body vibration in accordance with ISO standard. This study describes the frequency method used to compute the frequency weighted velocity values by using acceleration time signals. Firstly, the relationship between velocity and acceleration is deduced in detail, and then a time domain integrated method is proposed to calculate the frequency weighted velocity RMS, finally, the validity of the method is assessed on a real sea test experiment and compared with frequency domain method.","PeriodicalId":46624,"journal":{"name":"INTERNATIONAL JOURNAL OF COMPUTER APPLICATIONS IN TECHNOLOGY","volume":null,"pages":null},"PeriodicalIF":1.2000,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"INTERNATIONAL JOURNAL OF COMPUTER APPLICATIONS IN TECHNOLOGY","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1504/ijcat.2023.134078","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS","Score":null,"Total":0}
引用次数: 0
Abstract
The imposition of excessive ship vibration induces corresponding motions and forces within the human body, possibly causing discomfort and degraded levels of comfort and health. The ISO criterion is designed to limit potential vibration to improve the crew comfort. Frequency weighting values are used to evaluate whole-body vibration in accordance with ISO standard. This study describes the frequency method used to compute the frequency weighted velocity values by using acceleration time signals. Firstly, the relationship between velocity and acceleration is deduced in detail, and then a time domain integrated method is proposed to calculate the frequency weighted velocity RMS, finally, the validity of the method is assessed on a real sea test experiment and compared with frequency domain method.
期刊介绍：
IJCAT addresses issues of computer applications, information and communication systems, software engineering and management, CAD/CAM/CAE, numerical analysis and simulations, finite element methods and analyses, robotics, computer applications in multimedia and new technologies, computer aided learning and training. Topics covered include: -Computer applications in engineering and technology- Computer control system design- CAD/CAM, CAE, CIM and robotics- Computer applications in knowledge-based and expert systems- Computer applications in information technology and communication- Computer-integrated material processing (CIMP)- Computer-aided learning (CAL)- Computer modelling and simulation- Synthetic approach for engineering- Man-machine interface- Software engineering and management- Management techniques and methods- Human computer interaction- Real-time systems
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