This content is not included in your SAE MOBILUS subscription, or you are not logged in.
New Suspension Design for Heavy Duty Trucks: Dynamic Considerations
ISSN: 0148-7191, e-ISSN: 2688-3627
Published December 04, 2000 by SAE International in United States
Annotation ability available
It is well known that the excessive levels of vibration in heavy vehicles negatively affect driver comfortability, cargo safety and road condition. The current challenge in the field of suspension design for heavy vehicles is to optimize the suspension dynamic parameters to improve such requirements.
Almost all of the previous work in this field is based on applying the mathematical optimization considering active or passive suspension systems to obtain the optimal dynamic parameters.
In this work a new passive suspension systems for heavy trucks is suggested and compared with the conventional passive suspension systems. The new systems rely on transferring the vertical motion, (vibration), into horizontal motion through a bell-crank mechanism to be taken by a horizontal passive suspension system. The system dynamic parameters like body acceleration, suspension travel and dynamic tire load are calculated assuming random excitation due to road irregularities.
The new suspension system is examined using single wheel station and tandem axle configurations.
Improvements in body acceleration, suspension working space and dynamic tire load have been achieved compared with the conventional passive systems. These improvements are qualitatively almost equal to the improvement that usually achieved by using active suspension system.
The new design is worth applying to cut the cost consumed in employing expensive active suspension systems.
CitationMokhtar, M., Ibrahim, I., and El-Butch, A., "New Suspension Design for Heavy Duty Trucks: Dynamic Considerations," SAE Technical Paper 2000-01-3447, 2000, https://doi.org/10.4271/2000-01-3447.
SAE 2000 Transactions Journal of Commercial Vehicles
Number: V109-2; Published: 2001-09-15
Number: V109-2; Published: 2001-09-15
- Inoh, Takeshi Aisaka, Masahru 1973 ‘Tuning technique for controlling heavy-duty truck shak-vertical, torsional, and lateral’ SAE paper No. 730650
- Baum, J. H. Bennett, J. A. Carne, T. G. 1977 ‘Truck ride improvement using analytical and optimization methods’ SAE paper No. 770609
- Foster, Albert W. 1978 ‘A heavy truck cab suspension for improved ride’ SAE paper No. 780408
- Dokainish, M. A. El-Madany, M. M. 1980 ‘Random response of tractor-semitrailer system’ Vehicle System Dynamics 9 87 112
- El-Madany, M. M. 1987 ‘An analytical investigation of isolation systems for cab ride’ Computers & Structures 27 5 679 688
- Bruce, D. Van Deusen 1971 ‘Truck suspension optimization’ SAE paper No. 710222
- El-Madany, M. M. 1988 ‘Design and optimization of truck suspensions using covariance analysis’ Computers & Structures 28 2 241 246
- Pintado, P. Benitez, F. G. 1990 ‘Optimization of vehicle suspension I: Time domain’ Vehicle System Dynamics 19 273 288
- Del Castillo, J. M. Pintado, P. Benitez, F. G. 1990 ‘Optimization of vehicle suspension II: Frequency domain’ Vehicle System Dynamics 19 331 352
- Rakheja, S. Ahmed, A. K. W. Yang, X. 1999 ‘Optimal suspension damping for improved driver-and road friendliness of urban buses’ SAE paper No. 1999-01-3728 , SP-1486, Roll stability dynamics, Ride, and Handling
- El-madany, M. M. Samaha, M. E. 1992 ‘On the optimum ride control of a stochastic model of a tractor-semitrailer vehicle’ Journal of Sound and Vibration 156 2 269 281
- Wilkinson, P. A. Crolla, D. A. ‘Development of sub-optimally controlled suspensions for articulated truck to reduce vibration and road wear’ XXIV FISITA Congress London 239 245
- Cebon, D. Besinger, F. H. Cole, D. J. 1996 ‘Control strategies for semi-active lorry suspensios’ Proc Instn Mech. Engrs, Part D: Journal of Automobile Engineering 161 178
- Ibrahim, I. M. 1999 ‘Finite element multibody system control of tractor semi-trailers with active suspension and controller time delay’ SAE paper No. 1999-01-0726 , SP-1438, Steering and Suspension Technology Symposium
- Crolla, D. A. Firth, G. Horton, D. 1993 ‘An Introduction to vehicle dynamics’ Mechanical Engineering Dept., Leeds University UK
- Ibrahim, I. M. Crolla, D. A. Barton, D. C. 1995 ‘Active suspension for trucks incorporating frame flexibility effects’ Heavy Vehicle Systems, Special Series of the Int. J. of Vehicle Design 2 1 1 17
- Potter, T. E. C. Cebon, D. Collop, A. C. Cole, D. J. 1996 ‘Road-damaging potential of measured tyre forces in mixed traffic’ Proc Instn Mech Engrs, Part D: Journal of Automobile Engineering 215 225