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Semiactive Suspension: A Field Testing Case Study
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English
Abstract
The U.S. Army initiated program to assess the performance potential of a semiactive advanced suspension system for its combat vehicles is addressed. This paper is a continuation of SAE paper 970386, “Semiactive Suspension: A Mobility Case Study”, Saxon, N.L. and Meldrum, W.R. Jr. This year's paper addresses actual field testing of the semiactive hydropneumatic suspension versus a standard torsion bar passive suspension on two similarly weighted Bradley Fighting Vehicles. The hardware discussed will include semiactive external in-arm hydropneumatic suspension, computer controller, and dynamic track tensioner. The relative mobility of the two systems, passive and semiactive, is evaluated through various field tests such as ride, shock, slalom, and traverse testing. The proposed benefits gained from a semiactive suspension include faster cross country speeds, increased ride quality and platform stability, decreased shock loads to the hull, and increased crew comfort/operational effectiveness. The quantitative and qualitative performance benefits are evaluated through acceleration, velocity, and video data taken during testing. Computer modeling and mobility simulations of the two systems is also addressed to support field testing conclusions.
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Saxon, N., Meldrum, W., and Bonte, T., "Semiactive Suspension: A Field Testing Case Study," SAE Technical Paper 981119, 1998, https://doi.org/10.4271/981119.Also In
Developments in Tire, Wheel, Steering, and Suspension Technology
Number: SP-1338; Published: 1998-02-13
Number: SP-1338; Published: 1998-02-13
References
- Saxon, Nancy L. Meldrum, William R., Jr. “Semiactive Suspension: A Mobility Case Study” SAE Paper No. 970386 Feb 1997
- Lee, R. A. Pradko F. “Analytical Analysis of Human Vibration” SAE Paper No. 680091 Jan. 1968
- Creighton, Daniel C. Revised Vehicle Dynamics Module: User's Guide for Computer Program VEHDYN II May 86 U.S. Army Engineer Waterways Experiment Station Vicksburg, Miss
- Hoogterp, Francis B. Dr. Saxon, Nancy L. Schihl, Peter J. “Semiactive Suspension for Military Vehicles” SAE Paper No. 930847 Mar 1993