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Title Design and development of side underride protection devices (SUPD) for heavy vehicles
URL
Publication Date
University/Publisher University of Ontario Institute of Technology
Abstract There exists a large mismatch between the bumper of a passenger vehicle and the ground clearance of heavy vehicles. During collisions between the car and the side of the heavy vehicle, a large amount of intrusion is observed in the passenger compartment due to underride. The results of these collisions often leads to injuries or fatalities. This research aims to develop side underride protection devices (SUPD) to eliminate the incompatibility between the small vehicle???s bumper and bottom of the trailer or box of the straight truck. To successfully design these guards, a regulation for testing the effectiveness of the SUPDs during a side crash was created. Guards were then developed utilizing a topology and multi-objective optimization design approach by applying the proposed regulation. These proved feasible when tested dynamically with the Toyota Yaris and Ford Taurus at preventing underride. Additional guards were then created and tested utilizing an aerodynamic shape to reduce drag and improve fuel consumption.
Subjects/Keywords Side underride protection device (SUPD); Crashworthiness; Underride; Vehicle safety
Contributors El-Gindy, Moustafa
Language en
Country of Publication ca
Record ID handle:10155/416
Repository uoit
Date Retrieved
Date Indexed 2018-05-31

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…117 viii LIST OF FIGURES Figure 1.1 - Mismatch between passenger vehicle bumper and trailer .............................. 1 Figure 1.2 - Eliminated mismatch of bumper and trailer with an underride guard ............ 1 Figure 1.3 - Average of fatal…

…principle of an underride guard for tractor-trailers or straight trucks is to prevent small passenger cars from going underneath these heavy vehicles. Due to the high ground clearance of the large vehicles and the low height of a small vehicle’s bumper…

…is shown in Figure 1.1. Instead, during the collision, the car completely passes underneath the heavy vehicle which is where the term “underride” originates. The deformation of the passenger compartment is observed when the A-pillars come into…

…of bumper and trailer with an underride guard Figure 1.1 - Mismatch between passenger vehicle bumper and trailer This type of collision can occur from the front, side or rear configuration when investigating the crash from the heavy vehicle’s point…

…of view. The car can pass underneath the bumper at the front, the trailer or the box of the straight truck at the side, or the back of the trailer or box at the rear. Guards can be installed in these areas to eliminate the underride effect of the…

…small vehicles and to improve the interaction 1 between the vehicles. This research investigates and outlines the principles of side underride protection devices to eliminate the incompatibility between the large trucks and small vehicles. An outline…

…of a guard which can be added to a trailer to prevent underride is shown in Figure 1.2. 1.2 OBJECTIVES The purpose of this research is to investigate the collision statistics for this type of crash to determine the need for the guards. An in depth…

…literature review is conducted explaining the limited current solutions to this problem along with an overview of existing patents. The objective is then to create and design a process for developing the lightest and most feasible side underride guards for…

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