Assessment of raod and rail vehicle ride quality to ensure adequate comfort for revenue passengers has recieved attention from researchers, vehicle manufacturers, and rail system operators. Far less attention has been paid to the ride environment for operators and crew members on road and rail vehicles in freight service. This paper reports the results of one such study. The objective of the effort reported in this paper was to evaluate the ride environment for crew members operating locomotives in high speed mainline service on the Union Pacific Railroad out of Pocatello, Idaho. Ride vibration measurements on the engineers' seat of a locomotive operating at speeds to 70 mph were obtained and processed for comparison with the ISO ride quality standards. Measurements with the same requirement on a heavy truck operating at speeds to 65 mph on an interstate highway were also obtained, processed, and compared with the locomotive ride results. Ride quality assessment have been made for a six-axle locomotive in revenue service and heavy truck pulling a flatbed trailer. The paper contains results of locomotive ride quality measurements at 10-mph speed increments up to 70 mph. Comparisons are made between the ride quality of the locomotive and the heavy truck. Locomotive ride vibration levels were found to be below the 8-hour fatigue-decreased proficiency boundaries specified in ISO 2631 at all speeds through 70 mph.
Ride quality assessments for a 6-axle locomotive and a heavy truck
Ermittlung der Fahrqualität auf einer sechsachsigen Lokomotive und einem Schwerlastkraftwagen
1991
8 Seiten, 16 Bilder, 3 Tabellen, 9 Quellen
Aufsatz (Konferenz)
Englisch
Locomotive and Road Vehicle Ride Quality Assessments
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