Development of moving deformable barriers in Japan

Ueno, Masanori; Ohmae, Haruo; Harigae, Takeshi; Satake, Katsuya; Yamaguchi, Tsuyoshi; Fujiwara, Eiji

Affiliations

²Ministry of Transport

³Japan Automobile Manufacturers Association, Inc., Japan

Abstract

A Moving Deformable Barrier (MDB) used to simulate a colliding vehicle is an important element in full-scale side impact test procedures. There are several differences in weights, dimensions, force deflection characteristics, etc between the US MDB and European by reflecting the difference in vehicle population in their markets. During the past studies being made for the introduction of side impact testing procedures into Japan. it is expected to develop a practical MDB corresponding to the situations of the Japanese automobile.

This paper reports the results ofthe studies of Japanese automobile characteristics. and also describes the design of a MDB developed in Japan.

The dimensions of the vehicle from structure and vehicle weight were studied for Japanese passenger vehicles being registered in 1993. The force deflection characteristics ofthe vehicles were obtained from frontal impact tests against an ínstrumented fixed rigid barrier for the typical Japanese passenger vehicle. The values of these parameters were weighted by the number of vehicles sold during that year. The results of these studies were compared with the specifications of the US and European MDB.

Based on the investigation results of Japanese automobile, the specifications of the MDB to be used in Japanese side impact test procedures were determined. To meet these specifications, studies were made for materials and construction of the MDB, paying attention to form a practical test procedures. Frontal barrier impact tests and fullscale side impact tests were carried out to evaluate the characteristics ofthe MDB

Cited Works (8)

Year	Entry
1982	EEVC Working Group. Structures improved side impact protection in Europe. In: Proceedings of the 9th International Technical Conference on Experimental Safety Vehicles (ESV). November 1-4, 1982; Kyoto, Japan.396-409.
1985	Cesari D, Bloch J, Sievert W, Pulwitt E, Neilson ID, Hobbs A. Validation of the EEVC mobile deformable barrier for side impact testing. In: Proceedings of the 10th International Technical Conference on Experimental Safety Vehicles (ESV). July 1-4, 1985; Oxford, England.794-811. SAE 856093.
1985	Gebbels DR. The CCMC mobile deformable barrier for lateral collision testing. In: Proceedings of the 10th International Technical Conference on Experimental Safety Vehicles (ESV). July 1-4, 1985; Oxford, England.811-821. SAE 856094.
1985	Le Guen H, Dargaud R, Bourdillon T. Fabrication and validation of a mobile deformable barrier for side impact. In: Proceedings of the 10th International Technical Conference on Experimental Safety Vehicles (ESV). July 1-4, 1985; Oxford, England.822-839. SAE 856095.
1980	Davis S, Ragland C. Development of a deformable side impact moving barrier. In: Proceedings of the 8th International Technical Conference on Experimental Safety Vehicles (ESV). October 21-24, 1980; Wolfsburg, Germany.646-677.
1982	Chapoux E, Jolys JC, Dargaud R. An approach for the design of a deformable mobile barrier to evaluate the protection afforded to occupants of a passenger car involved in a side collision. In: Proceedings of the 9th International Technical Conference on Experimental Safety Vehicles (ESV). November 1-4, 1982; Kyoto, Japan.409-420.
1985	Monk MW, Willke DT. Side impact aggressiveness attributes. In: Proceedings of the 10th International Technical Conference on Experimental Safety Vehicles (ESV). July 1-4, 1985; Oxford, England.637-648. SAE 856083.
1987	Ohmae H, Sakurai M, Nakamura Y, Watanabe K. A study on energy-absorbing units of MDB for side impact test. In: Proceedings of the 11th International Technical Conference on Experimental Safety Vehicles (ESV). May 12-15, 1987; Washington, DC.136-147.

Cited By (1)

Year	Entry
1998	Ueno M, Harigae T, Ohmae H, Uchimura T, Fujiwara E. Development of moving deformable barrier in japan: part 2. In: Proceedings of the 16th International Technical Conference on the Enhanced Safety of Vehicles (ESV). May 31–June 4, 1998; Windsor, Ontario, Canada.1827-1834.