Research on fatigue resistance and structural optimization of antenna beams of subway vehicles
NI Baocheng
LI Longtao
YANG Chen
WANG Songhao
HU Tingzhou
Abstract：To address the fatigue failure of underframe-end suspended components on metro vehicles,this paper investigates an antenna beam structure.A finite element model was established and validated.Using a precise simulation method for vibrational fatigue analysis,the primary cause of the structural failure was identified.In response to the vibration acceleration excitations measured on a specific line,structural optimization was conducted.The results demonstrate that an elastic connection optimization approach is highly effective,providing reference for the future design and optimization of antenna beam structures.
Keywords：antenna beamsvibration fatiguefinite element model correctionfrequency response functionstructural optimization
Publication Date：2025-11-25
Pages：6( 30-35 )