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Abstract

The effectiveness of a vehicle crash system depends on how well it can simulate the behavior of a real vehicle in a crash scenario and accurately identifies the correct working limits of the model parameters, including mass, spring, and damper. Therefore, this study explores the modelling vehicle front crumple zone to represent the behaviors of real crash scenario. The modelling process using Kamal approach is used to develop a precise vehicle crash model for analyzing the impact of a collision on both the vehicle and its passengers. In this study, a complex mass-spring-damper system representing the front crumple zone of an actual car is re-designed to modify the existing vehicle crash model. The gravitational search algorithm (GSA) is implemented in the simulation model's code to obtain optimized values of damping coefficient (c) and spring constant (k). The simulation results show that the deformation response of crumple zone and the deceleration response of vehicle body match the experimental results, indicating the model's accuracy. Additionally, this study investigates the effects of varying the GSA parameters' number of agents (N), the beta parameter (β), and the gravitational constant (G) to improve the model's accuracy by minimizing the root mean square error (RMSE) between model response and crash test data. The optimal GSA parameter chosen in this study were N = 50, β = 0.3, and G = 20 with the lowest RMSE of 22.3874, 22.26664, and 23.86638 respectively.

Keywords

Crumple zone Vehicle crash simulation Modified Kamal model Gravitational search algorithm

Article Details

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Author Biographies

Amrina Rasyada Zubir, National Defence University of Malaysia, Malaysia

Amrina Rasyada Zubir is a research student at the Department of Mechanical Engineering, National Defence University of Malaysia. Her research interest is in the development of crumple zone model for vehicle crash simulation and the use of smart materials for absorbing vehicle crash impact.

Khisbullah Hudha, National Defense University of Malaysia, Malaysia

Khisbullah Hudha received his BE in Mechanical Design from Bandung Institute of Technology (ITB), Indonesia; his MSc in the Department of Engineering Production Design from Technische Hoogeschool Utrecht in the Netherlands and his Ph.D. in Intelligent Vehicle Dynamics Control using Magnetorheological Damper from Universiti Teknologi Malaysia (UTM). His research interests include modelling, identification, and force tracking control of semi-active dampers, evaluation of vehicle ride and handling, electronic chassis control system design, and intelligent control. He is currently attached as an Associate Professor with Universiti Pertahanan Nasional Malaysia (UPNM) and is actively involved in parallel hybrid vehicles and active safety systems for military armored vehicles.

Zulkiffli Abd Kadir, National Defence University of Malaysia, Malaysia

Zulkiffli Abd Kadir received his BE and MSc in the Department of Automotive Engineering, Universiti Teknikal Malaysia Melaka. Then, obtained his PhD from Universiti Teknologi Malaysia (UTM) on Development of Active Front Wheel Vehicle System. His research interests include tyre modelling, evaluation of vehicle dynamics and control. He is currently attached to the Universiti Pertahanan Nasional Malaysia and actively involved in vehicle
modelling, system identifications and intelligent control system for the vehicle's active safety system.

Noor Hafizah Amer, National Defence University of Malaysia, Malaysia

Noor Hafizah Amer received her first degree, ME (Hons) in Mechanical Engineering (Automotive) from The University of Nottingham, UK, and MEngSc in Mechanical Engineering, Universiti Malaya, Malaysia. She is currently attached as an academic staff with the Universiti Pertahanan Nasional Malaysia (UPNM) and a PhD holder from Universiti Teknologi Malaysia (UTM). Her research interests include vehicle control systems, automotive
suspension, optimization, and autonomous vehicle.

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