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A Moving Deformable Barrier with Dynamic Force and Deflection Spatial Measurement Capabilities for Full Scale Tests
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 06, 2000 by SAE International in United States
Annotation ability available
Event: SAE 2000 World Congress
This paper describes the design and development of an advanced instrumentation Moving Deformable Barrier (MDB) for use in research crash testing to address vehicle aggressitivity and compatability issues. The instrumented MDB design is an adaptation of the current Federal Motor Vehicle Safety Standard (FMVSS No. 214) MDB design and duplicates as closely as possible its physical and dynamic specifications. Forty-four equally spaced low weight triaxial load cells are placed behind the main body of the aluminum honeycomb structure. In addition, an equal number of string potentiometers are placed in the rear of the cart to measure the honeycomb crush. The triaxial load cells were specially designed to measure forces in both the longitudinal and shear directions. During the initial design stage, the number of load cells, their weight, placement, type, durability and measuring capacity were considered. The location and retraction properties of the displacement transducers were also considered. Since the advanced MDB was initially designed with the current cart design, the center of gravity and mass moments of inertia were tuned as closely as possible to the current MDB design through small changes to the cart's design and string potentiometer placement. The stability of the new design was verified through dynamic tests of the MDB impacting a rigid wall under both perpendicular and oblique impacts. Force-versus-deflection characteristics were measured both statically and dynamically for a variety of impact conditions. These were used to upgrade the aluminum honeycomb material codes of the MDB finite element model developed for simulation studies. Comparisons of the dummy and vehicle responses in FMVSS No. 214 tests of a passenger car showed good correlation between current and instrumented designs. Lastly, future research areas are recommended based on this design.
CitationTrella, T., Samaha, R., Fleck, J., and Strassburg, G., "A Moving Deformable Barrier with Dynamic Force and Deflection Spatial Measurement Capabilities for Full Scale Tests," SAE Technical Paper 2000-01-0637, 2000, https://doi.org/10.4271/2000-01-0637.
SAE 2000 Transactions Journal of Passenger Cars - Mechanical Systems
Number: V109-6; Published: 2001-09-15
Number: V109-6; Published: 2001-09-15
- Davis, Sol. Ragland, C. “Development of a Deformable Side Impact Moving Barrier,” 8 th International Technical Conference on Experimental Safety Vehicles Wolfsburg Federal Republic of Germany October 21-24 1980
- et al. “Federal Motor Vehicle Safety Standards; Side Impact Protection; Rules,” 55 210 October 30 1990
- Gupta, V. et al. 1994 “Development of a Side Impact Finite Element Model,”
- Maruthayappan, Ramki et al. “Improved Finite Element SID for In-Vehicle Simulation,” SAE paper No. 1999-01-0716 1999 SAE World Congress and Exposition Detroit, MI February 1999
- Trella, T.J. Samaha, Radwan, R. Smith, E.J. “The Use of Advanced Analytical Techniques in Side Impact Crashworthiness Research,” 15 th International Technical Conference on Enhanced Safety of Vehicles 1 Melbourne, Australia May 13-16 1996
- Key Transducers, Inc.
- Unimeasure, Inc. nd
- “Laboratory Test Procedures for FMVSS No. 214 Dynamic Side Impact Protection-Passenger Cars,” September 1 1995
- Plascore, Inc.
- Instrumentation for Impact Test - Part 1 - Electronic Instrumentation - SAE J211/1 MAR95
- Trella, T.J. Samaha, Radwan, R. “Finite Element Model of a Moving Deformable Barrier For Federal Motor Vehicle Safety Standard 214 Side Impact Collision,” 1995 ASME International Mechanical Engineering Congress and Exposition, Crashworthiness and Occupant Protection in Transportation Systems 1995 210 30
- “Design Data for the Preliminary Selection of Honeycomb Energy Absorption Systems,” Hexel Corporation
- Tomassoni, J.E. “A Study of the Effect of Strain Rate on the Automobile Crash Dynamic Response,” AIAA/ASME; Structures, Structural Dynamics and Material Conference 19 th April 1978
- “Mechanical Properties of Hexcel Honeycomb Materials” Hexcel Corporation