Optimal Specifications for the Advanced Pedestrian Legform Impactor

Authors: Takahiro Isshiki, Jacobo Antona-Makoshi, and Atsuhiro Konosu—Japan Automobile Research Institute; Yukou Takahashi—Japan Automobile Manufacturers Association

Abstract

This study addresses the virtual optimization of the technical specifications for a recently developed Advanced Pedestrian Legform Impactor (aPLI). The aPLI incorporates a number of enhancements for improved lower limb injury predictability with respect to its predecessor, the FlexPLI. It also incorporates an attached Simplified Upper Body Part (SUBP) that enables the impactor’s applicability to evaluate pedestrian’s lower limb injury risk also with high-bumper cars. The response surface methodology was applied to optimize both the aPLI’s lower limb and SUBP specifications, while imposing a total mass upper limit of 25 kg that complies with international standards for maximum weight lifting allowed for a single operator in the laboratory setting. All parameters were virtually optimized considering variable interaction, which proved critical to avoid misleading specifications. The results from this study can be used to construct physical aPLIs that are expected to be used in future car-to-pedestrian crash safety testing programs worldwide.

Type: Full Paper

Keywords: Pedestrian safety, lower limb injuries, legform impactor, response surface methodology

© Stapp Association, 2017

Access Additional Papers from This Volume

View additional Full Papers from the Stapp Car Crash Journal, Volume 61.

• Analysis of Repeatability and Reproducibility Standards of ATD Response for the Correlation Method
  Authors: Lan Xu and Guy Nusholtz—FCA US LLC, USA Abstract Statistical methods, using the entire time-history, can be used to…
• Application of Extreme Value Theory to Crash Data Analysis
  Authors: Lan Xu and Guy Nusholtz—FCA US LLC, USA Abstract A parametric model obtained by fitting a set of data…
• Association of Impact Velocity with Serious-Injury and Fatality Risks to Cyclists in Commercial Truck-Cyclist Accidents
  Authors: Yasuhiro Matsui—National Traffic Safety and Environment Laboratory, Japan; Shoko Oikawa—Tokyo Metropolitan University; Kazuhiro Sorimachi, Akira Imanishi, and Takeshi Fujimura—Isuzu…
• Biofidelity Evaluation of the THOR and Hybrid III 50th Percentile Male Frontal Impact Anthropomorphic Test Devices
  Authors: Daniel Parent, Matthew Craig, Kevin Moorhouse—National Highway Traffic Safety Administration Abstract The objective of this study is to present…
• Biomechanics of Lumbar Motion-Segments in Dynamic Compression
  Authors: Mike W. J. Arun, Prasannaah Hadagali, Klaus Driesslein, William Curry, Narayan Yoganandan, and Frank A. Pintar—Department of Neurosurgery, Medical…
• Development of the CAVEMAN Human Body Model: Validation of Lower Extremity Sub-Injurious Response to Vertical Accelerative Loading 
  Authors: Kent Butz, Chad Spurlock, Rajarshi Roy, Cameron Bell, Paul Barrett, Aaron Ward, Xudong Xiao, Allen Shirley, Colin Welch, Kevin…
• Human Foot-Ankle Injuries and Associated Risk Curves from Under Body Blast Loading Conditions
  Authors: Sajal Chirvi, Narayan Yoganandan, Mike Schlick, William Curry—Department of Neurosurgery, Medical College of Wisconsin/VA Medical Center; Frank Pintar—Department of…
• Human Shoulder Response to High Velocity Lateral Impact
  Authors: Matthieu Lebarbé—CEESAR, Nanterre, France; Philippe Vezin—Univ Lyon, Université Claude Bernard Lyon 1, IFSTTAR, LBMC UMR_T9406, F69622, Lyon, France; Frédéric…
• Neck Injury Response in High Vertical Accelerations and its Algorithmical Formalization to Mitigate Neck Injuries
  Authors: Julie Klima, Jian Kang, AnnMarie Meldrum, Steven Pankiewicz—Tank Automotive Research, Development, and Engineering Center Abstract Tank Automotive Research, Development…
• New Reference PMHS Tests to Assess Whole-Body Pedestrian Impact Using a Simplified Generic Vehicle Front-End
  Authors: Eric Song, Philippe Petit, and Xavier Trosseille—LAB PSA Renault; Jérôme Uriot, Pascal Potier, and Denis Dubois—CEESAR; Richard Douard—Université Paris…
• Occupant Kinematics in Simulated Autonomous Driving Vehicle Collisions: Influence of Seating Position, Direction and Angle
  Authors: Yuichi Kitagawa, Shigeki Hayashi, Katsunori Yamada, Mitsuaki Gotoh—Toyota Motor Corporation Abstract This two-part study analyzed occupant kinematics in simulated…
• Optimal Specifications for the Advanced Pedestrian Legform Impactor
  Authors: Takahiro Isshiki, Jacobo Antona-Makoshi, and Atsuhiro Konosu—Japan Automobile Research Institute; Yukou Takahashi—Japan Automobile Manufacturers Association Abstract This study addresses…
• Optimizing Seat Belt and Airbag Designs for Rear Seat Occupant Protection in Frontal Crashes
  Authors: Jingwen Hu and Matthew P. Reed—University of Michigan Transportation Research Institute; Jonathan D. Rupp—Emory University School of Medicine; Kurt…
• Strain-rate Dependency of Axonal Tolerance for Uniaxial Stretching
  Authors: Hiromichi Nakadate, Evrim Kurtoglu, Hidenori Furukawa, Shoko Oikawa, and Shigeru Aomura—Graduate School of System Design, Tokyo Metropolitan University; Akira…

Looking for Something Else?