RESEARCH PAPER
Analytical Approach for Vehicle Body Structures Behaviour Under Crash at Aspects of Overloading and Crumple Zone Length
1
Institute of Applied Mechanics, Poznan University of Technology, ul. Jana Pawła II 24, 60-965 , Poznan, Poland
2
Motor Transport Institute, ul. Jagiellonska 80, 03-301 Warszawa, Poland
3
Łukasiewicz Research Network - Poznań Institute of Technology, ul. Ewarysta Estkowskiego 6, 61-755 , Poznan, Poland
Submission date: 2022-08-22
Acceptance date: 2022-12-01
Online publication date: 2023-01-14
Publication date: 2023-03-01
Acta Mechanica et Automatica 2023;17(1):68-75
KEYWORDS
ABSTRACT
Road safety problem is still topical, especially since the number of vehicles and the volume of traffic are increasing. It is possible to increase the safety of road users through systemic changes in many areas related to transport. The deformation of the vehicle body during an accident has an impact on the loads acting on the passengers. Vehicle body deformation depends on complex parameters, and knowledge of these parameters is essential for designing crumple zones and the accident reconstruction process. Knowledge of the mechanical parameters of the vehicle structure during deformation is also a reference to passenger injury indicators assessment. This paper reports results from the analytical approach for determining the protection level of personal vehicles. The proposed conception is based on the results from the static stiffness characteristic of the Ford Taurus, which gives the possibility of phenomenological and simple body crumple analytical description at a speed equal to 10 km/h, 40 km/h, 56 km/h and 60 km/h, which is an original part of the work. The approach enables us to describe the vehicle crash by focusing on variations of deformation in time, stiffness, vehicle collision time (duration), deceleration and dynamic crash force. Basing on the body stiffness data of the personal vehicle, the length of the deformation zone in the front of the car and the maximum values of force at the crash for a speed of 60 km/h are presented. Results obtained by the authors show that is possible to estimate the overloading level during the crash time of a vehicle based on the stiffness characteristic of the car body. The proposed methodology can be developed and the advantage of the presented procedure is an uncomplicated useful tool for solving complex problems of a vehicle crash.
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| eISSN: | 2300-5319 |
| ISSN: | 1898-4088 |
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