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Technical Briefs

Influence of Sensor Position in Measuring Lateral Vibration Due to Vehicle Groove Wander

[+] Author and Article Information
Michael A. Mooney

Colorado School of Mines,
1500 Illinois Street,
Golden, CO 80401
e-mail: mooney@mines.edu

Robert V. Rinehart

Civil Engineer
Materials Engineering and Research Laboratory,
U.S. Bureau of Reclamation,
Denver Federal Center,
Building 56, Room 1400,
P.O. Box 25007 (86-68180),
Denver, CO 80225-0007;
Colorado School of Mines,
1500 Illinois Street,
Golden, CO 80401
e-mail: rrinehart@usbr.gov

1Corresponding author.

Contributed by the Design Engineering Division of ASME for publication in the JOURNAL OF VIBRATION AND ACOUSTICS. Manuscript received August 14, 2010; final manuscript received June 29, 2012; published online November 26, 2012. Assoc. Editor: Thomas J. Royston.

J. Vib. Acoust 134(6), 064502 (Nov 26, 2012) (3 pages) doi:10.1115/1.4007563 History: Received August 14, 2010; Revised June 29, 2012

The objective of the study presented in this paper was to determine the optimal sensor location to assess human discomfort during vehicle groove wander, a phenomenon whereby vehicle occupants experience uncomfortable lateral vibrations when driving over longitudinally grooved (or tined) Portland cement concrete pavement. Field testing was performed over a 4.8 km stretch of interstate highway using a vehicle known to experience vehicle groove wander. Lateral accelerations were measured during wander and nonwander driving at several sensor positions including the seat frame, seat cushion, seat back, and the passenger's head. The most effective sensor location to capture vibrations due to vehicle wander proved to be the passenger's head. The standard methods for evaluating human exposure to vehicle vibrations did not yield a reliable indication of the occurrence of wander or the discomfort it causes.

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Figures

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Fig. 1

(a) Tire tread on the Uniroyal Laredo van tire and (b) longitudinal tining of the PCC pavement. A 2000 GMC Safari cargo van was used for the study.

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Fig. 2

Accelerometers placed on the (a) seat frame, (b) seat back, (c) seat cushion, and (d) passenger's head

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Fig. 3

Raw lateral acceleration data measured at the seat frame, seat cushion, seat back, and passenger's head (from top to bottom) with data from nonwander behavior on the left and wander behavior on the right

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