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Journal of Civil Structural Health Monitoring

, Volume 6, Issue 5, pp 791–802 | Cite as

IRI measurement using dynamic tire pressure sensor with an axle accelerometer

  • Yubo ZhaoEmail author
  • Ming L. Wang
Original Paper

Abstract

This paper develops a new method to estimate IRI using a dynamic tire pressure sensor (DTPS) inside the tire with an axle accelerometer. This method is based on a physical 2-D dynamic tire model. This paper verifies that speeds above 40 km/h (25 mph) are suitable for both highways and urban roads. Feasibility and repeatability tests were hereby conducted and reported on an airport runway through a certification test that was administered by the Massachusetts Department of Transportation (MassDOT), highways and urban roads. During testing, the accuracy of the new method was equivalent to IRI values measured using the laser profilometers and accelerometers. The newly developed method has the potential to be integrated into vehicle computer systems to form a network wide global health monitoring system of roadways to make the right repair, at the right time, in the right place.

Keywords

Dynamic tire pressure sensor (DTPS) Speed effect International Roughness Index (IRI) Mobile sensing Road health monitoring Infrastructure health 

Abbreviations

ks

Suspension spring rate

ks

Tire spring rate

cs

Suspension damping rate

LB

Contact length between the tire and the road

ms

Sprung mass (portion of vehicle body mass supported by one wheel)

mu

Unsprung mass (mass of wheel, tire, and half of axle/suspension)

Notes

Acknowledgments

This work was performed under the support of the U.S. Department of Commerce, National Institute of Standards and Technology, Technology Innovation Program, Cooperative Agreement Number 70NANB9H9012. The reference IRI data were provided by Massachusetts Department of Transportation. The authors gratefully acknowledge this support.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  1. 1.Department of Civil and Environmental EngineeringNortheastern UniversityBostonUSA

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