Design and Energy Absorption Analysis of a New multi-cell Type-H Whip Restraint with openings
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1.Chinergy Co,Ltd;2.School of Civil Engineering,Chongqing University,Chongqing ,P R China;3.School of Civil Engineering,Southeast University,Nanjing of Jiangsu Prov;4.Electric Power Development Research Institute.CEC

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TL48??????

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    Abstract:

    Two novel H-shaped whip restraints integrating multi-cell configurations with surface perforations were developed to enhance energy absorption and stabilize peak reaction forces. Finite element analysis was conducted using ABAQUS/Explicit to compare mechanical responses between conventional honeycomb H-shaped restraints and multi-cell perforated thin-walled structures under axial/eccentric compression. Results showed the conventional structure exhibited 20% higher initial peak crushing force than new designs, while the 25-cell elliptical-hole configuration demonstrated optimal performance with 21.7% greater total energy absorption. During eccentric loading, the conventional design showed rapid load escalation beyond 120mm displacement, whereas the multi-cell perforated structure maintained stable platform force fluctuations. Crashworthiness tunability was achieved through series-parallel topology optimization of cellular units, enabling directional control of energy absorption via cell quantity adjustment and layered configuration design.

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History
  • Received:May 20,2025
  • Revised:July 25,2025
  • Adopted:September 04,2025
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