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Road Vehicle Robust Design: Chassis and Suspension Tolerances Impact on the Handling and Stability Behaviour
Technical Paper
2008-01-0710
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper introduces a technique to analyze the influence of the chassis and suspension manufacturing tolerances on the road vehicles handling.
A study on the components tolerances and bushing stiffness has been conducted to evaluate the vehicle handling and stability indexes variations (understeer and sideslip gradient, gains and phases in frequency domain, etc.).
The procedure starts with the 3D model creation, in a CAD environment, of all the components which establish a vehicle suspension assembly. Then, a Computer Aided Tolerance (CAT) software allows to calculate the suspension system tolerance chain in order to identify the equivalent tolerance of the main suspension kinematic points. Furthermore, a multibody full vehicle model has been developed to run a wide set of simulations of quasi-static and transient manoeuvres used to define response diagrams tolerance. A Monte Carlo Design of Experiment is applied to perform all the simulations, to reproduce all the possible kinematic points location and all the possible bushing stiffness (both according to their manufacturing variation). After the investigation, the statistical correlation between chassis and suspension components tolerance and full vehicle handling and stability behaviour is identified.
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Citation
Lanzavecchia, M. and Radice, P., "Road Vehicle Robust Design: Chassis and Suspension Tolerances Impact on the Handling and Stability Behaviour," SAE Technical Paper 2008-01-0710, 2008, https://doi.org/10.4271/2008-01-0710.Also In
Reliability and Robust Design in Automotive Engineering, 2008
Number: SP-2170; Published: 2008-04-14
Number: SP-2170; Published: 2008-04-14
References
- Shankar S.R. Koerner S. Janevic; J. Extended Synthesis: Robust Design Using ADAMS/Insight ASME 2002 Design Engineering Technical Conferences and Computers and Information in Engineering Conference Montreal (Canada) September 29 October 2 2002
- Sacks E. Joskowicz L. Schultheiss R. Hinze U. Computer-Assisted Kinematic Tolerance Analysis of a Gear Selector Mechanism With the Configuration Space Method - DETC99/DAC-8703 Proceedings of DETC'99; ASME Design Engineering Technical Conferences Las Vegas (USA) 1999
- Soderberg R. Tolerance Chain Detection by Geometrical Constraint Based Coupling Analysis Journal of Engineering Design 10 1 Taylor and Francis Group London 1999
- Chase K.W. Magleby S. P. Glancy C. A Comprehensive System for Computer-Aided Tolerance Analysis of 2D and 3D Mechanical Assemblies Association for the Development of Computer-Aided Tolerancing Systems - Report No. 97-5 Provo (USA) 2004
- Dimensioning and Tolerancing - ANSI Y14.5 M - 1982 ASME New York (USA) 1982
- Rotundo R. Amato L. Robust Design Of An Automotive Suspension: A Study On The Reduction Of Tolerances - 2007 SAE Conference Detroit (USA)
- Nalecz A. Investigation into the Effects of Suspension Design on Stability of Light Vehicles SAE Paper No. 870497 1987
- Allen R. Characteristics Influencing Ground Vehicle Lateral/Directional Dynamic Stability SAE Paper No. 910234 1991
- Rotondi A. Pedroni P. Pievatolo A. Probabilità Statistica e Simulazione Springer-Verlag Italia, Milano 2001
- Singh P.K. Jain S.C. Jain P.K. Tolerance Analysis of Mechanical Assemblies Using Monte Carlo Simulation International Journal of Industrial Engineering: Theory, Applications and Practice 10 2 CSA Illumina, Bethesda (USA) 2003
- Cox N.D. How to Perform Statistical Tolerance Analysis American Society for Quality Control - Statistical Division 11 1986