{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,31]],"date-time":"2026-01-31T09:54:11Z","timestamp":1769853251697,"version":"3.49.0"},"reference-count":74,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2022,3,1]],"date-time":"2022-03-01T00:00:00Z","timestamp":1646092800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003725","name":"National Research Foundation of Korea","doi-asserted-by":"publisher","award":["No. 2019R1A5A808320112"],"award-info":[{"award-number":["No. 2019R1A5A808320112"]}],"id":[{"id":"10.13039\/501100003725","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003725","name":"National Research Foundation of Korea","doi-asserted-by":"publisher","award":["No. 2020R1G1A1011142"],"award-info":[{"award-number":["No. 2020R1G1A1011142"]}],"id":[{"id":"10.13039\/501100003725","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>This paper examines the influence of the equipment considered as a DVA (Dynamic Vibration Absorber) upon the mode of vertical vibrations of the car body in high-speed vehicles. The car body is represented as an Euler-Bernoulli beam to minimize flexible vibration. The DVA approach is used to find the appropriate suspension frequencies for various types of equipment. A vertical mathematical model with a flexible car body and equipment is developed to investigate the effect of equipment mass, suspension stiffness, damping, and mounting location on car-body flexible vibrations. A three-dimensional, rigid-flexible coupled vehicle system dynamics model is developed to simulate the car body and equipment\u2019s response to track irregularities. The experimental result was considered to verify the theoretical analysis and dynamic simulation. The mathematical analysis demonstrates that the DVA theory can be used to design the suspension parameters of the equipment and that it is suitable and effective in reducing the flexible vibration of the car body in which the vertical bending mode is greatly affected. Heavy equipment should be mounted as close to the car body\u2019s center as possible to achieve significant flexible vibration reduction, whereas light equipment contributes very little flexible vibration reduction.<\/jats:p>","DOI":"10.3390\/s22051922","type":"journal-article","created":{"date-parts":[[2022,3,1]],"date-time":"2022-03-01T21:25:14Z","timestamp":1646169914000},"page":"1922","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":33,"title":["Numerical and Experimental Analysis of DVA on the Flexible-Rigid Rail Vehicle Carbody Resonant Vibration"],"prefix":"10.3390","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6809-2410","authenticated-orcid":false,"given":"Sunil Kumar","family":"Sharma","sequence":"first","affiliation":[{"name":"School of Engineering & Applied Science, National Rail and Transportation Institute, Vadodara 390004, Gujarat, India"}]},{"given":"Rakesh Chandmal","family":"Sharma","sequence":"additional","affiliation":[{"name":"Mechanical Engineering Department, Maharishi Markandeshwar, Mullana 133207, Haryana, India"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1295-3357","authenticated-orcid":false,"given":"Jaesun","family":"Lee","sequence":"additional","affiliation":[{"name":"School of Mechanical Engineering, Changwon National University, Changwon 51140, Korea"}]},{"given":"Hong-Lae","family":"Jang","sequence":"additional","affiliation":[{"name":"School of Mechanical Engineering, Changwon National University, Changwon 51140, Korea"}]}],"member":"1968","published-online":{"date-parts":[[2022,3,1]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"30","DOI":"10.1115\/1.3426868","article-title":"Multiple and Continuous Span Elevated Guideway-Vehicle Dynamic Performance","volume":"97","author":"Smith","year":"1975","journal-title":"J. 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