The development of a mobile deformable barrier test procedure

Schram, Richard; Versmissen, Ton

Affiliations

Abstract

Frontal compatibility assessment, including self and partner protection, is a major topic in crash safety testing today. Currently none of the regulatory and consumer test procedures is able to assess the vehicle on vehicle frontal compatibility on the three main aspects; structural interaction, frontal stiffness and compartment strength. It is hypothesized that a test procedure using a Mobile Deformable Barrier (MDB) could be able to assess compatibility on the aspects mentioned above. This paper presents the development of a MDB test trolley for frontal offset testing and its full scale test results.

First, a load sensing trolley was developed. The specifications of the trolley, mass, CoG and inertia properties are based on EU and US vehicle geometry databases. The trolley mass was made adjustable between 1300 kg and 1800 kg, with tunable inertia properties. The trolley was designed to be equipped with the progressive deformable barrier (PDB) as deformable element. The PDB was chosen based on the available test-data and for its stability and its ability to allow a barrier face deformation measurement to evaluate partner protection.

Based on the current PDB test protocol, a test protocol has been developed for the MDB, called MPDB test procedure. A number of vehicles, ranging from small to large, were tested according the MPDB protocol. The closing speed was selected such that comparable initial kinetic energy is involved as in a static PDB test for a mid sized car with mass of 1500 kg. The test results with the full scale MPDB tests were analyzed and compared to test results of static PDB tests with the same vehicle. It was concluded that for small vehicles the severity of the MPDB tests is relatively higher than for larger vehicles. The MPDB test procedure was shown to be feasible and repeatable. Further investigations into test parameters like trolley mass and test velocity are recommended. INTRODUCTION

Links

URL: http://www-nrd.nhtsa.dot.gov/pdf/esv/esv20/07-0327-O.pdf

Cited By (4)

Year	Entry
2011	Johannsen H, Adolph T, Thomson R, Edwards M, Lázaro I, Versmissen T. FIMCAR – frontal impact and compatibility assessment research: strategy and first results for future frontal impact assessment. In: Proceedings of the 22nd International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 13-16, 2011; Washington, DC.
2013	Adolph T, Damm R, Kanjuparambil N, Langer U, Meyna A, Huster D. Development and validation of a reference vehicle for future research in passive safety. In: Proceedings of the 23rd International Technical Conference on the Enhanced Safety of Vehicles (ESV). May 27-30, 2013; Seoul, South Korea.
2015	Adolph T, Ott J, Eickhoff B, Johannsen H. What is the benefit of the frontal mobile barrier test procedure? In: Proceedings of the 24th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 8-11, 2015; Gothenburg, Sweden.
2017	Youn Y, Lee J, Kang B, Kim G, Kwon H. The proposed new KNCAP frontal crash test based on the in-depth accident data. In: Proceedings of the 25th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 5-8, 2017; Detroit, MI.