Accession Number : ADA579759


Title :   New Integrated Testing System for the Validation of Vehicle-Snow Interaction Models


Descriptive Note : Conference paper


Corporate Author : ALASKA UNIV FAIRBANKS


Personal Author(s) : Lee, Jonah H ; Johnson, Thomas H ; Huang, Daisy ; Meurer, Stephen ; Reid, Alexander A ; Meldrum, Bill R


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a579759.pdf


Report Date : 06 Aug 2010


Pagination or Media Count : 13


Abstract : A new integrated testing system for the validation of stochastic vehicle-snow interaction models is presented in this paper. The testing system consists of an instrumented test vehicle, vehicle-mounted laser profilometer and a snow micropenetrometer. The test vehicle is equipped on each tire with a set of 6-axis wheel transducers, and a GPS-based data logger tracks vehicle motion. Data is also simultaneously acquired from the sensors from the test vehicle's Electronic Stability Program. The test vehicle provides measurements that include three forces and moments at each wheel center, vehicle body slip angle, speed, acceleration, yaw rate, roll, and pitch. The profilometer has a 3-D scanning laser and an Inertial Measurement Unit to compensate for vehicle motion. Depth of snow cover, profile of snow surface and wheel sinkage can be obtained from the profilometer. The snow micropenetrometer measures the strength of the snow cover before and after vehicle traversal. Preliminary results, including traction, drawbar pull, vehicle states, snow profiles and snow material properties from recent field tests on natural snow cover are presented, demonstrating the capability and potential of the testing system.


Descriptors :   *SNOW , *VALIDATION , *VEHICLES , DETECTORS , FIELD TESTS , INERTIAL MEASUREMENT UNITS , INSTRUMENTATION , INTEGRATED SYSTEMS , INTERACTIONS , LASERS , MODELS , PROFILES , PROFILOMETERS , SNOW COVER , STRENGTH(GENERAL) , SYMPOSIA , TEST AND EVALUATION , TEST VEHICLES , TIRES , TRANSDUCERS , VELOCITY , WHEELS , YAW


Subject Categories : Snow, Ice and Permafrost
      Surface Transportation and Equipment


Distribution Statement : APPROVED FOR PUBLIC RELEASE