This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Measurement of Road Profile and Study it's Effect on Vehicle Durability and Ride
ISSN: 0148-7191, e-ISSN: 2688-3627
Published January 21, 2009 by The Automotive Research Association of India in India
Annotation ability available
Event: SIAT 2009
Road roughness induces dynamic loads on vehicles, which cause fatigue damage as a result. Design of vehicle for durability is one of the key steps during vehicle development process. Vehicle durability is verified on test tracks, on test rigs, or, increasingly, by computer simulations. Does the test represent real-life vehicle usage? How many times should a vehicle travel over the test tracks to verify the durability? How should input signals to test rigs be generated? For doing this kind of analysis, it is always required to measure the vehicle response parameters such as wheel forces, axle and chassis acceleration etc. These measurement based approaches have high cost and are time consuming. As these are vehicle dependent parameters, exercises need to be repeated on each type/class of vehicle. Hence it is needed to identify and measure the parameter which is vehicle independent. It is commonly accepted that the road profile is the principle excitation to the vehicle. Therefore studies of understanding of actual road roughness are necessary to answer the key questions concerning these verification procedures and prediction of vehicle durability. In this regard, a research project was undertaken at ARAI to develop a system to measure the vehicle independent road profiles and study the effect of road roughness on vehicle durability and ride. This paper discuss about the findings of this research project. Along with these, this paper also speaks about methodology for analytical road-load predictions.
CitationR, P. and M.R., S., "Measurement of Road Profile and Study it's Effect on Vehicle Durability and Ride," SAE Technical Paper 2009-26-0070, 2009, https://doi.org/10.4271/2009-26-0070.
- Carey, W. N Irick, P. E. “The Pavement Serviceability Performance Concept,” Bulletin 250 Highway Research Board Washington, DC 1960
- “Standard Test Method for Measuring Longitudinal Profile of Traveled Surfaces with an Accelerometer Established Inertial Profiling Reference” ASTM, E-950–96
- “Standard Practice for Computing International Roughness Index of Roads from Longitudinal Profile Measurements,” ASTM 1926–98
- Sayers, M. W. “On the Calculation of International Roughness Index from Longitudinal Road Profile.” Transportation Research Record 1501 1995 1 12
- Sayers, M. Gillespie, T.D. Quieroz, C “International Experiment to Establish Correlation Methods for Road Roughness Measurements” World Bank Technical Paper No.45 The World Bank Washington D.C. 1986
- ISO 8608:1995 “Mechanical vibration — Road surface profiles — Reporting of measured data”
- Dodds, C. J. Robson, J. D. “The description of road surface roughness” Journal of Sound and Vibration Vol. 31 No. 2 175 183 1973
- Spangler, E.B. Kelly, W.J. “Development and Evaluation of the Ride Number Concept,” Vehicle-Road Interaction, ASTM STP 1225, ASTM Philadelphia 1994 135 149