Please use this identifier to cite or link to this item: https://hdl.handle.net/11681/12769
Title: HEMTT dynamic sensitivity to small obstacles at low velocities. Report 2, Validation study using VEHDYN 3.0
Authors: Creighton, Daniel C.
Jones, Randolph A.
Keywords: Computer simulation
Computer programs
Military vehicles
Military trucks
Low velocity
Validation
VEHDYN 3.0
Vehicle dynamics
Weighing-in-motion
Mobility
Trafficability
Publisher: U.S. Army Engineer Waterways Experiment Station
Series/Report no.: Technical Report (Geotechnical Laboratory (U.S.)) ; no. Technical Report GL-95-2
Abstract: The Vehicle Dynamic Model (VEHDYN) 3.0, developed at the U.S. Army Engineer Waterways Experiment Station, was used to compare selected displacements, velocities, and accelerations with field-measured quantities for both an empty and a fully loaded M977 HEMTT truck. Test conditions (detailed in Report 1 of this series) included having the HEMTT negotiate small square-edged obstacles (0.25 - 3.00 inches high) at low velocities (1.80 + 0.06 mph). Time history and Fast Fourier Transform comparisons are provided. The VEHDYN 3.0 model did a reasonable job at predicting the motion, especially the action of the HEMTT walking beam suspensions and overall low-frequency response. A procedure was demonstrated that takes acceleration data from low-amplitude front and rear drop tests and develops linear spring and damper response relationships for the HEMTT.
Description: Technical Report
Gov't Doc #: Technical Report GL-95-2
Rights: Approved for public release; distribution is unlimited
URI: http://hdl.handle.net/11681/12769
Appears in Collections:Technical Report

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