Modeling and multi-objective optimization of a bionic crash box with folding deformation

Traditional crash box is unable to efficiently solve the problem of bending deformation during the collision process, which limits the energy absorption performance and crashworthiness. This paper introduces the structure of cactus into the design of crash box and attempts to redesign a new one with stable folding deformation. By imitating the cactus characteristic, the bionic crash box consists of two parts: one is the corrugated angular structure, and the other is its thickness functionally gradient distribution along the axial direction. Based on the sensitivity analysis, the parameters which have great influences on the energy absorption performance are selected as the design variables. The multi-objective optimization design is conducted based on response surface model and Latin hypercube design of experiment. Simulation results show that the bionic crash box can effectively weaken the damage to the autobody and improve the energy absorption performance through stable folding deformation.

[1]  Z. Jiang,et al.  Optimization of a fender structure for the crashworthiness design , 2010 .

[2]  Marco Anghileri,et al.  Multi-objective optimisation of composite absorber shape under crashworthiness requirements , 2004 .

[3]  Niyazi Tanlak,et al.  Optimal shape design of thin-walled tubes under high-velocity axial impact loads , 2014 .

[4]  Firoz Alam,et al.  Bio-Inspired Design: Aerodynamics of Boxfish☆ , 2015 .

[5]  Tao Xu,et al.  Crashworthiness Design for Bionic Bumper Structures Inspired by Cattail and Bamboo , 2017, Applied bionics and biomechanics.

[6]  Saifulnizan Jamian,et al.  Crashworthiness Behavior of Hollow Al-Based Functionally Graded Material (FGM) Box under Quasi-Static Loading , 2015 .

[7]  Mehdi Tajdari,et al.  Attempts to improve energy absorption characteristics of circular metal tubes subjected to axial loading , 2010 .

[8]  Kaushik Sinha,et al.  Reliability-based multiobjective optimization for automotive crashworthiness and occupant safety , 2007 .

[9]  Tamitza Toroyan,et al.  Global status report on road safety , 2009, Injury Prevention.

[10]  Sungjong Kang.  Bumper Stay Design for RCAR Front Low Speed Impact Test , 2016 .

[11]  Li Li,et al.  Frontal Structure Improvement on Car Based on RCAR Impact Test , 2012, 2012 Third International Conference on Digital Manufacturing & Automation.

[12]  F. Haji Aboutalebi,et al.  Multi-objective optimisation of functionally graded honeycomb filled crash boxes under oblique impact loading , 2015 .

[13]  Xi-Qiao Feng,et al.  Static and dynamic mechanical properties of cattle horns , 2011 .

[14]  Ren-Jye Yang,et al.  An automatic model calibration method for occupant restraint systems , 2011 .

[15]  Qiang Li,et al.  A two-stage multi-objective optimisation of vehicle crashworthiness under frontal impact , 2008 .

[16]  Seyed Jamal Hosseinipour,et al.  Energy absorbtion and mean crushing load of thin-walled grooved tubes under axial compression , 2003 .

[17]  Guilin Wen,et al.  Multi-objective robust optimization of foam-filled bionic thin-walled structures , 2016 .

[18]  Li Mingliang,et al.  Automotive Sheet Metal SAPH440 and Q235 Formability of Comparative Study , 2015 .

[19]  Sang-Rai Cho,et al.  Deformation process of web girders in small-scale tanker double hull structures subjected to lateral impact , 2013 .

[20]  Bharat Bhushan,et al.  Natural and biomimetic artificial surfaces for superhydrophobicity, self-cleaning, low adhesion, and drag reduction , 2011 .

[21]  Xin Yong,et al.  True stress-strain curves used in finite element vehicle model , 2008, 2008 IEEE Vehicle Power and Propulsion Conference.

[22]  Sang Kyo Lee,et al.  Impact fracture behavior at the material of aluminum foam , 2012 .

[23]  Tami Toroyan,et al.  Global Status Report on Road Safety: Time for Action , 2009 .

[24]  A. A. Nia,et al.  Comparative analysis of energy absorption and deformations of thin walled tubes with various section geometries , 2010 .

[25]  Reza Emami,et al.  Crashworthiness Optimization of Thin Walled Cylindrical Tubes with Annular Grooves under Axial Compression , 2012 .

[26]  Kiran Solanki,et al.  Multi-objective optimization of vehicle crashworthiness using a new particle swarm based approach , 2012 .

[27]  Gyung-Jin Park,et al.  Structural optimization of the automobile frontal structure for pedestrian protection and the low-speed impact test , 2008 .

[28]  Yu Yongjun,et al.  STRUCTURE AND MECHANICAL CHARACTERISTIC OF CATTLE HORNS , 2014 .

[29]  Ian A. Ashcroft,et al.  A computational determination of the Cowper–Symonds parameters from a single Taylor test , 2013 .

[30]  He Ning,et al.  Crashworthiness behavior of Koch fractal structures , 2018 .

[31]  Tapabrata Ray,et al.  A Hydrodynamic Preliminary Design Optimization Framework for High Speed Planing Craft , 2012 .

[32]  Gyung-Jin Park,et al.  Design flow for the crash box in a vehicle to maximize energy absorption , 2013 .

[33]  Jiri Kral.  Yet Another Look At Crash Pulse Analysis , 2006 .