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Increased Stability of Twin Trailers
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Language:
English
Abstract
A computer simulation was performed at Iowa State University on a twin trailer combination. A general purpose multi-body dynamics program was used. Steer inputs were modeled after actual driver data collected at the wheel end of a vehicle. Input was held to a constant frequency of 2.2 radians/second while the amplitude was increased until rollover occurred. Rollover occurred when the tangential tire forces reached zero at the rear axle of the rear trailer. Major improvements were noted when the freeplay was removed and the width of the suspensions were increased by 6 inches.
Authors
Citation
Slagle, W., "Increased Stability of Twin Trailers," SAE Technical Paper 902269, 1990, https://doi.org/10.4271/902269.Also In
References
- Vehicle Weights and Dimensions Study Roads and Transportation Association of Canada July 1986
- Winkler, Christopher “Improved Dynamic Performance of Multi-Trailer Vehicles: A Study of Innovative Dollies.” UMTRI Research Review 18 5 Mar-Apr 1988
- Saskatchewan Highway and Transportation “The Safety Experiences of trucks in Saskatchewan.”