Vehicle Unpaved Road Response Spectrum Acquisition Based on Accelerometer and GPS Data
AbstractThis paper describes a response acquisition system composed of some spindle accelerometers and a time synchronized on-board GPS receiver developed in order to collect the dynamic response of vehicle riding on an unpaved road. A method of time-space conversion for calculating the response spectrum is proposed to eliminate the adverse effect of time-varying speed, based on the transform from the equitime sampled spindle acceleration responses to equidistance sampling. By using two groups of independent distance histories acquired from GPS, a method called long-range error correction is proposed to improve the accuracy of the vehicle’s distance information, which is critical for the time-space conversion. The accuracy and limitations of the system have been analyzed, and its validity has been verified by implementing the system on a wheel loader for road response spectrum measuring. This paper offers a practical approach to obtaining unpaved road response spectra for durability road simulation. View Full-Text
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Cong, N.; Shang, J.; Ren, Y.; Guo, Y. Vehicle Unpaved Road Response Spectrum Acquisition Based on Accelerometer and GPS Data. Sensors 2012, 12, 9951-9964.
Cong N, Shang J, Ren Y, Guo Y. Vehicle Unpaved Road Response Spectrum Acquisition Based on Accelerometer and GPS Data. Sensors. 2012; 12(8):9951-9964.Chicago/Turabian Style
Cong, Nan; Shang, Jianzhong; Ren, Yanxi; Guo, Yao. 2012. "Vehicle Unpaved Road Response Spectrum Acquisition Based on Accelerometer and GPS Data." Sensors 12, no. 8: 9951-9964.