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Investigation into the Effects of Suspension Design on Stability of Light Vehicles
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Abstract
A variety of suspensions are used in light vehicles and they affect dynamics of vehicles in various ways. The components of lateral and longitudinal weight transfers, which depend upon suspension design, influence the wheel normal loads, tire characteristics, and tire-roadway limits of adhesion which in consequence determine vehicle stability.
Modeling procedures for nonlinear kinematic and dynamic analysis of 25 commonly used light vehicle suspensions have been developed and applied to investigate the spatial movement of vehicle roll axis. A nonlinear tire model based on a friction ellipse concept and capable of accepting CALSPAN tire data has been developed to compute cornering forces as functions of slip angle variables, normal loads, tire adhesion characteristics and skid numbers. Development of handling simulation models of light vehicles which utilize the dynamics of specified suspensions to investigate a transient and steady state response of vehicles in combined, cornering and braking or accelerating maneuvers is presented. The calculated results emphasize the necessity of incorporating into the vehicle model variation in suspension designs while investigating the stability of vehicles.
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Citation
Nalecz, A., "Investigation into the Effects of Suspension Design on Stability of Light Vehicles," SAE Technical Paper 870497, 1987, https://doi.org/10.4271/870497.Also In
References
- Fiala, E. “Lateral Forces on Rolling Pneumatic Tyres,” Zeitschrift V.D.I. 96 29 1954
- Segel, L. “Theoretical Prediction and Experimental Substantiation of the Response of the Automobile to Steering Controls,” Proceedings of the Automobile Division 7 1956-1957
- Pacejeka, H.B. Radt, H.S. “Analysis of the Steady-State Turning Behavior of an Automobile,” Proceedings Symposium of Control of Vehicles During Braking and Cornering I. Mech. E. Auto Div. 1963
- Dugoff, H. Fancher P.S. egel, L. “Tire Performance Characteristics Affecting Vehicle Response to Steering and Braking Control inputs,” Highway Safety Research institute, Univ. of Michigan-Ann Arbor Final Report National Bureau of Standards Contract CST-460 1969
- Segel, L. “The Tire as a Vehicle Component,” Mechanics of Transportation Suspension Systems ASME New York 1975
- Bernard, J.E. Segel, L. Wild, R.E. “Tire Shear Force Generation During Combined Steering and Braking Maneuvers,” SAE Paper No. 770852 1977
- Pacejka, H.B. “Analysis of Tire Properties,” Chapter 9 of Mechanics of Pneumatic Tires, Clark S.K. N.B.S. Monograph 122 2nd 1981
- McHenry, R.R. “An Analysis of the Dynamics of Automobiles During Simultaneous Cornering and Ride Motions,” Proceedings Symposium on Handling of Vehicles Under Emergency Conditions 28 48 London institution of Mechanical Engineers 1969
- Uffelman, F. “Braking in Curves. Steer-ability and Stability of Road Vehicles,” Proc. 1st course in Advanced Vehicle System Dynamics international Center for Transportation Studies Rome 1982
- Mitchell, B. Abraras, R. Scott, R.A. “All-Digital Simulation of Simple Automobile Maneuvers,” Simulation 1981
- Nordeen, D.L. “Analysis of Tire Lateral Forces and interpretation of Experimental Tire Data,” SAE Paper No. 670173 1967
- Sakai, H. “Theoretical and Experimental Studies on the Dynamic Properties of Tires, Parts 1-4.,” Int. Journal of Vehicle Design 2 and 3 1981
- Tapin, G.A. “Extended Tire Testing,” Calspan Corporation Contract No. DTNH22-81-C-07100, Final Report 1983
- Shoemaker, P.S. “Tire Engineering by Finite Element Modeling,” SAE Paper No. 840065 1984
- Richards Brown Hohman Sundaram “Model Analysis of Tires Relevant to Vehicle System Dynamics,” Presented at the Third international Model Analysis Conference Orlando, Florida 1985
- Richards, T.R. Charek, L.T. Scavuzzo, R.W. “The Effects of Spindle and Patch Boundary Conditions on Tire Vibration Modes,” SAE Paper No. 860243 1986
- Nalecz, A.G. “The Descrete Model of Three Axles Motor Vehicle,” institute of Fundamental Technological Research Warsaw Report No. 66 1975
- Nalecz, A.G. “Dynamic Equilibrium of a Motor-Car Vehicle Under Action of Oblique Airflow,” Non-Linear Vibration Problems 18 Warsaw 1977
- Nalecz, A.G. “The Effect of the Cross Wind on Dynamic Properties of a Motor-Car Moving Along Straight Line,” institute of Fundamental Technological Research Warsaw Report No. 54 1978
- Nalecz, A.G. “The Non-Holonomic Constraints of a Vehicle on Pneumatic Tires,” 8th IAVSD Symposium M.I.T. Cambridge 1983
- Nalecz, A.G. Genin, J. “Dynamic Stability of Heavy Articulated Vehicles,” Int. J. of Vehicle Design 5 4 1984
- Nalecz, A.G. Wicher, J. “Design Sensitivity Analysis of Mechanical Systems in Frequency Domain,” Journal of Sound and Vibration 1987
- Wicher, J. Nalecz, A.G. “Second Order Sensitivity Analysis of Lumped Mechanical Systems in the Frequency Domain,” international Journal for Mechanical Methods in Engineering 1986
- Szoetak, H.T. et. al “Tire Performance Characteristics Affecting Vehicle Response to Steering and Braking Control Inputs,” Highway Traffic Safety institute, University of Michigan Ann Arbor, Michigan 1969
- Szostak, H.T. Johnson, R. Wade, A. et. al. “A Microcomputer Program for Analyzing a Tire Model to be Used in Vehicle Dynamics Simulations,” Systems Technology, inc. presented at 1986 SCS MultiConference San Diego, California 1986
- Wade, A.R. Johnson, W.A. Rosenthal, T. J. et. al. “Quasilinear Analysis of Nonlinear Dynamic Simulations,” presented at the 1986 Summer Computer Simulations Conference Reno, Nevada 1986
- Sano, S. Furukawa, Y. Oguchi, Y. “Effect of Vehicle Response Characteristics and Driver's Skill Level on Task Performance and Subjective Rating,” 8th international Technical Conference on Experimental Safety Vehicles 1980
- Wade Szostak Rosenthal Johnston “Test Methods and Computer Modeling for the Analysis of Ground Vehicle Handling,” System Technology, Inc. SAE Paper, No. 861115 1986
- Tateishl, Y. Yoshimori, K. Koide, M. Yamada, K. “The Effects of the Tire Camber on Vehicle Controllability and Stability,” SAE Paper No. 860245 1986
- Abe, M. “A Study on Vehicle Turning Behavior in Acceleration and in Braking,” SAE Paper No. 85184 1985
- Abe, M. “A Theoretical Analysis on Vehicle Cornering Behaviors in Acceleration and in Braking,” Proc. 9 th IAVSD Symposium 1985
- Furukawa, Y. “Practical Vehicle Mathematical Models Effective for Evaluating Handling Quality Corresponding to Various Driving Conditions,” SAE Paper No. 851238 1985
- Uffelmann, F. “Automotive Stability and Handling Dynamics in Cornering and Braking Maneuvers,” Vehicle System Dynamics 12 1983
- “Determination of Risks, Car Involvement in Accidents by Type and by Motor Car Attributes,” “Adjustment of Risks, Frequency Distribution of Exposure Parameters and of Circumstantial Attributes,” NHTSA Documentation U.S. Department of Transportation Washington D.C.
- Malliaris, R.C. “Discerning the State of Accident Avoidance in the Accident Experience,” 10th int. Tech. Conf. on Experimental Safety Vehicles Oxford, England 1985
- Malliaris, A.C. Nicholson, R.M. Hedlund, J.H. Scheiner, S.R. “Problems in Crash Avoidance and in Crash Avoidance Research,” SAE Paper No. 830560 1983
- Brewer, H.K. “A Microcomputer Program for Analyzing the Directional Stability of Automobiles During Braking on Low Friction Pavements,” National Highway Traffic Safety Administration Washington DC 20590 1986
- Shadle, S.G. Emery, L.H. Brewer, H.K. “Vehicle Braking. Stability and Control,” SAE Paper No. 830562 1983
- Brewer, H.K. Rice, R.S. “Tires -Stability and Control,” SAE Paper No. 830561 1983
- Shibahata, Y. Irie, N. Itoh, H. Nakamura, K. “The Development of an Experimental Four-Wheel-Steering Vehicle,” SAE Paper No. 860623 1986
- Takiguchi, T. Yasuda, N. Furutani, S. Kanazawa, H. Inoue, H. “Improvement of Vehicle Dynamics by Vehicle-Speed-Sensing Four-Wheel Steering System,” SAE Paper No. 860624 1986
- Sano, S. Furukawa, Y. Shiraishi, S. “Four Wheel Steering System with Rear Wheel Steer Angle Controlled as a Function of Steering Angle,” SAE Paper No. 860625 1986
- Nalecz, A.G. Ziemba, S. “The Modeling. Analysis and Identification of Motor Vehicles Treated as Complex Mechanical Systems in the System Approach,” National Scientific Session “Progress in Motor Car Research” Cracow 1976
- Orlandea, N. Chace, M.A. “Simulation of a Vehicle Suspension with ADAMS Computer Program,” SAE Paper No. 770053 1977
- Garrot, R. Scott, R.A. “Improvement of Mathematical Models for Simulation of Vehicle Handling,” University of Michigan NHTSA Contract No. DOT-HS-7-01715, final report 1980
- Kortum, W. Schiehlen, W. “General Purpose Vehicle System Dynamics Software Based on Multibody Formalisms,” Vehicle System Dynamics 14 1985
- Antoun, R.J. Hackert, P.B. O'Leary, M. C. Sitchin, A. “Vehicle Dynamic Handling Computer Simulation-Model Development, Correlation, and Application Using ADAMS,” SAE Paper No. 860574 1986