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

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...

Full description

Bibliographic Details
Main Authors: Lee, Jonah H, Johnson, Thomas H, Huang, Daisy, Meurer, Stephen, Reid, Alexander A, Meldrum, Bill R
Other Authors: ALASKA UNIV FAIRBANKS
Format: Text
Language:English
Published: 2010
Subjects:
Snow
Ice and Permafrost
Surface Transportation and Equipment
*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
Ice
permafrost
Online Access:http://www.dtic.mil/docs/citations/ADA579759
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA579759
Description
Summary: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. Presented at 2010 GROUND VEHICLE SYSTEMS ENGINEERING AND TECHNOLOGY SYMPOSIUM (GVSETS) AUGUST 17-19, 2010.

Similar Items