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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 |
Files in This Item:
File | Description | Size | Format | |
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Technical-Report-GL-95-2.pdf | Technical Report GL-95-2 | 12.39 MB | Adobe PDF | View/Open |