پذیرفته شده برای ارائه شفاهی ، صفحه 1-9 (9) اصل مقاله (634.55 K)

کد مقاله : 1079-ISAV2022 (R1)

¹Somaye Mohammadi ؛ ²Ramin Farnia؛ ²Shahzad Mohammadzadeh

¹1- پسا دکتری، دانشکده مهندسی مکانیک، دانشگاه صنعتی شریف، تهران، ایران 2- معاونت توسعه محصول، خودروسازی زامیاد، تهران، ایران

²معاونت توسعه محصول، خودروسازی زامیاد، تهران، ایران

Handling is one of the important criteria in evaluating vehicle dynamics. Improving the handling first requires defining sub-targets and their acceptable ranges, and then finding the un-der-control parameters with the most effects on sub-targets. These are the focus of this research that is performed for an N2 pickup truck. After simulating the under-study (default) vehicle and its benchmark (target) vehicle, standard handling tests according to ISO are performed to compare the results of the two vehicles. Constant radius cornering and step steer tests are identified as appropriate representatives of the handling. Roll angle, understeer coefficient, lateral deviation, and yaw rate are defined as sub-targets. Tires and anti-roll bar stiff-nesses are selected to examine their effects on sub-targets. Sensitivity analysis based on a design of experiment method and analysis of variance is a tool to examine the effectiveness of parameters on the outputs. The complicated nonlinear vehicle model is substituted with some quadratic regression models to be used for optimization by the response surface method. The obtained optimum solution is verified using the nonlinear model and it is illustrated that changing the selected parameters can make the handling like the benchmark vehicle.

Vehicle Handling؛ Tire؛ Sensitivity analysis؛ Optimization

Vehicle dynamics

<p dir="ltr">1. N. Michelena, H. M. Kim, and P.Y. Papalambros, " A system partitioning and optimization approach to target cascading", Proceedings of the 12th International Conference on Engineering Design, Munich, August 24 (1999).</p> <p dir="ltr">2. H. Qi, Y. Chen, N. Zhang, B. Zhang, D. Wang, and B. Tan, "Improvement of both handling stability and ride comfort of a vehicle via coupled hydraulically interconnected suspension and electronic controlled air spring", Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 234 (2-3), 552-571 (2020).</p> <p dir="ltr">3. M. A. Saeedi, "A new robust combined control system for improving maneuverability, lateral stability and rollover prevention of a vehicle", Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multibody Dynamics 234(1), 198-213 (2020).</p> <p dir="ltr">4. I. Javanshir, A. Maseleno, S. Tasoujian, and M. Oveisi, "Optimization of suspension system of heavy off-road vehicle for stability enhancement using integrated anti-roll bar and coiling spring mechanism", Journal of Central South University 25(9), 2289-2298 (2018).</p> <p dir="ltr">5. V. Parshetti, and P. Jain, Sensitivity study and optimization of magic formula tire parameters for vehicle handling and steering targets, Chalmers University of Technology, Master&rsquo;s thesis in Automotive Engineering, 2021.</p> <p dir="ltr">6. G. Papaioannou, J. Jerrelind, and L. Drugge, "Optimization of suspension and tyre parameters for minimum tyre wear, enhanced comfort, and improved vehicle handling", The IAVSD International Symposium on Dynamics of Vehicles on Roads and Tracks, Russia, August 16-20 (2022).</p> <p dir="ltr">7. J. Gao, and P. Han, "Analysis and optimization of vehicle handling stability with considering front and rear suspension hard point coordinates", Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 236(10), 5318-5341 (2022).</p> <p dir="ltr">8. M. Baghaeian, Y. Farzaneh, and R. Ebrahimi, "Improvement of Parameters Affecting the Vehicle&rsquo;s Handling and Ride Comfort Using the Taguchi Experimental Design and TOPSIS Method", Automotive Science and Engineering 12(1), 3787-3799 (2022).</p> <p dir="ltr">9. J. Gao, and P. Han, "Collaborative optimization of bushing installation angle and bushing stiffness of torsion beam suspension to improve the handing stability of the whole vehicle", Advances in Mechanical Engineering 14(5), 16878132221101022 (2022).</p> <p dir="ltr">10. S. Mohammadi, and M. Rezaeian, "Reliability evaluation of statistical methods used for design and analysis of experiments", The 5th International Reliability and Safety Engineering Conference (IRSEC), Shiraz, Iran, May 9-10 (2018)</p>