TY  - JOUR
PY  - 2012//
TI  - Vehicle unpaved road response spectrum acquisition based on accelerometer and GPS data
JO  - Sensors (Basel)
A1  - Cong, Nan
A1  - Shang, Jianzhong
A1  - Ren, Yanxi
A1  - Guo, Yao
SP  - 9951
EP  - 9964
VL  - 12
IS  - 8
N2  - This 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.<p />  <p>Language: en</p>
LA  - en
SN  - 1424-8220
UR  - http://dx.doi.org/10.3390/s120809951
ID  - ref1
ER  -