Design and Energy Absorption Analysis of a New multi-cell Type-H Whip Restraint with openings
DOI:
CSTR:
Author:
Affiliation:
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
Clc Number:
TL48??????
Fund Project:
Article
|
Figures
|
Metrics
|
Reference
|
Related
|
Cited by
|
Materials
|
Comments
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.