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Suspension and Mass Parameter Measurements of Wheeled Vehicles
Technical Paper
2015-01-2751
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The United States Army Tank Automotive Research, Development and Engineering Center (TARDEC) built systems to measure the suspension parameters, center of gravity, and moments of inertia of wheeled vehicles. This is part of an ongoing effort to model and predict vehicle dynamic behavior. The new machines, the Suspension Parameter Identification and Evaluation Rig (SPIdER) and the Vehicle Inertia Parameter Evaluation Rig (VIPER), have sufficient capacity to cover most heavy, wheeled vehicles. The SPIdER operates by holding the vehicle sprung mass nominally fixed while hydraulic cylinders move an “axle frame” in bounce or roll under each axle being tested. Up to two axles may be tested at once. Vertical forces at the tires, displacements of the wheel centers in three dimensions, and steer and camber angles are measured. Contact patch can move in lateral, longitudinal and steer motions of the suspension and the small deflections of the vehicle sprung mass resulting from the contact patch forces are measured. For steer axles the steering ratio, Ackerman steer characteristics, and kingpin orientation are measured. The VIPER measures center of gravity and vehicle principle moments of inertia. The roll-yaw cross product and the center of gravity height is measured by holding the vehicle body nominally fixed to a large platform while rotating the platform about the pitch, roll, and yaw axes.
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Citation
Baseski, I., Norman, K., Ryan, D., and Stahara, S., "Suspension and Mass Parameter Measurements of Wheeled Vehicles," SAE Technical Paper 2015-01-2751, 2015, https://doi.org/10.4271/2015-01-2751.Also In
References
- Andreatta , D. , Heydinger , G. , Bixel , R. , and Coovert , D. Inertia Measurements of Large Military Vehicles SAE Technical Paper 2001-01-0792 2001 10.4271/2001-01-0792
- Winkler , C. Measurement of Inertial Properties and Suspension Parameters of Heavy Highway Vehicles SAE Technical Paper 730182 1973 10.4271/730182
- Winkler , C. and Hagan , M. A Test Facility for the Measurement of Heavy Vehicle Suspension Parameters SAE Technical Paper 800906 1980 10.4271/800906
- Warfford , J. and Frey , N. A Facility for the Measurement of Heavy Truck Chassis and Suspension Kinematics and Compliances SAE Technical Paper 2004-01-2609 2004 10.4271/2004-01-2609
- SAE International Surface Vehicle Recommended Practice Vehicle Dynamics Terminology SAE Standard J670 JAN2008 Jan. 2008
- Mechanical Simulation Corporation 2015 Vehicle Simulation Products http://www.carsim.com/products/index.php
- MSC Software 2015 ADAMS - The Multibody Dynamics Simulation Solution http://www.mscsoftware.com/product/adams
- Altair Engineering 2015 MotionView - Optimize System Performance http://www.altairhyperworks.com/Product,18,MotionView.aspx
- Siemens AG 2015 LMS Virtual.Lab Motion - Multibody modeling software for fast and accurate motion simulation of complex mechatronic systems http://www.mscsoftware.com/product/adams
- Bundorf , R. The Influence of Vehicle Design Parameters on Characteristic Speed and Understeer SAE Technical Paper 670078 1967 10.4271/670078
- Topping , R. A Primer on Nonlinear, Steady-State Vehicle Turning Behavior SAE Technical Paper 741096 1974 10.4271/741096
- Winkler , C.B. , Bogard , S.E. , and Karamihas , S.M. Parameter Measurements of a Highway Tractor and Semitrailer UMTRI 95-47 December 1995 http://deepblue.lib.umich.edu/handle/2027.42/1145