Wheel/Rail Noise and Vibration: Volume 1. Mechanics of Wheel Rail Noise Generation.

Volpe National Transportation Systems Center, Technical Reference Centerhttps://doi.org/10.21949/15268701975PDFTech ReportRemington, Paul J.Rudd, Michael J.Ver, Istvan L.Bolt, Beranek, and Newman, inc.United States. Urban Mass Transportation AdministrationJohn A. Volpe National Transportation Systems Center (U.S.)United States. Urban Mass Transportation AdministrationUnited StatesCar wheels (Railroads)InstrumentationMathematical modelsMeasuring instrumentsNoiseNoise controlNoise sourcesRailroadsTest vehiclesTestsVibrationDOT-TSC-UMTA-75-1;UMTA-MA-06-0025-7510The final reports are reported of a project to develop a basic understanding of urban transit wheel/rail noise control measures. Analytical models of impedance, response, radiation efficiency, and directivity of wheels and rails are presented and compared with field and laboratory measurements. Analytical formulas for the prediction of noise in the three general categories of wheel/rail noise - squeal, impact, and roar - are presented and verified by comparison with laboratory measurements as well as field measurements using a small steel-wheeled personal rapid transit vehicle on a test track. Volume one deals with the theory of wheel/rail noise generation.138