{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,21]],"date-time":"2026-03-21T08:54:17Z","timestamp":1774083257495,"version":"3.50.1"},"reference-count":39,"publisher":"MDPI AG","issue":"17","license":[{"start":{"date-parts":[[2021,8,30]],"date-time":"2021-08-30T00:00:00Z","timestamp":1630281600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"the National Natural Science Foundations of China","award":["52078504, 51925808, U1934209, 52008060"],"award-info":[{"award-number":["52078504, 51925808, U1934209, 52008060"]}]},{"name":"Open Foundation of National Engineering Laboratory for High-Speed Railway Construction","award":["hsr201907"],"award-info":[{"award-number":["hsr201907"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>The suspended monorail (SM) vehicle\u2013bridge system has been considered a promising modern transit mode due to its clear advantages: low pollution, high safety, convenient construction, and low cost. The wind-induced response can significantly affect the running safety and comfort of this type of vehicle due to its special suspended position from a fixed track. This study is the first to systematically investigate its aerodynamic characteristics and interference effects under various spacing ratios using wind tunnel tests and numerical simulations. A high level of agreement between the wind tunnel test and CFD (computational fluid dynamics) results was obtained, and the aerodynamic interference mechanism can be well explained using the CFD technique from a flow field perspective. A wireless wind pressure acquisition system is proposed to achieve synchronization acquisition for multi wind pressure test taps. The paper confirms that (1) the proposed wireless wind pressure acquisition system performed well; (2) the aerodynamic coefficients of the upstream vehicle and bridge were nearly unchanged for vehicle\u2013bridge combinations with varying spacing ratios; (3) the aerodynamic interference effects were amplified when two vehicles meet, but the effects decrease as the spacing ratio increases; (4) the aerodynamic force coefficients, mean, and root mean square (RMS) wind pressure coefficients for the downstream vehicle and bridge are readily affected by the upstream vehicle; (5) the vortex shedding frequencies of vehicles and bridges can be readily obtained from the lift force spectra, and they decrease as the spacing ratio increases; and (6) a spacing ratio of 3.5 is suggested in the field applications to ensure the running safety and stability of the SM vehicle\u2013bridge system under exposure to crosswinds.<\/jats:p>","DOI":"10.3390\/s21175841","type":"journal-article","created":{"date-parts":[[2021,8,31]],"date-time":"2021-08-31T22:58:15Z","timestamp":1630450695000},"page":"5841","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Experimental Study of Aerodynamic Interference Effects for a Suspended Monorail Vehicle\u2013Bridge System Using a Wireless Acquisition System"],"prefix":"10.3390","volume":"21","author":[{"given":"Yunfeng","family":"Zou","sequence":"first","affiliation":[{"name":"School of Civil Engineering, Central South University, Changsha 410083, China"},{"name":"National Engineering Laboratory for High-Speed Railway Construction, Changsha 410083, China"}]},{"given":"Zhipeng","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Civil Engineering, Central South University, Changsha 410083, China"}]},{"given":"Kang","family":"Shi","sequence":"additional","affiliation":[{"name":"School of Civil Engineering, Chongqing University, Chongqing 400045, China"}]},{"given":"Shuangmei","family":"Ou","sequence":"additional","affiliation":[{"name":"School of Civil Engineering, Central South University, Changsha 410083, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2746-182X","authenticated-orcid":false,"given":"Xuhui","family":"He","sequence":"additional","affiliation":[{"name":"School of Civil Engineering, Central South University, Changsha 410083, China"},{"name":"National Engineering Laboratory for High-Speed Railway Construction, Changsha 410083, China"}]},{"given":"Honggui","family":"Deng","sequence":"additional","affiliation":[{"name":"School of Physics and Electronics, Central South University, Changsha 410012, China"}]},{"given":"Shuai","family":"Zhou","sequence":"additional","affiliation":[{"name":"China Construction Fifth Engineering Division Corp. 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