With the iteration of vehicle brand design,the applicability of the current Mobile Progressive Deformable Barrier(MPDB)scheme has declined.The Advanced Chinese Mobile Progressive Deformable Barrier(AC-MPDB)is introduc...With the iteration of vehicle brand design,the applicability of the current Mobile Progressive Deformable Barrier(MPDB)scheme has declined.The Advanced Chinese Mobile Progressive Deformable Barrier(AC-MPDB)is introduced,which incorporates segmented Zdirectional design and increased mass distribution to better align with the Chinese vehicle front-end structure.This study utilizes Camry and Rogue models to design an MPDB-to-vehicle and a vehicle-to-vehicle simulation matrix.The compatibility of the barrier schemes,Euro-NCAP MPDB(E-MPDB)and AC-MPDB,is evaluated using energy equivalent speed,occupant load criteria,peak force,and acceleration.The simulation results indicate that,compared to E-MPDB,the AC-MPDB barrier scheme exhibits excessive stiffness for medium-sized sedans with smaller mass but demonstrates better compatibility with SUVs.Further analysis of the target vehicle’s longitudinal beam deformation animation and pedal intrusion reveals that AC-MPDB achieves superior vehicle reproducibility,particularly for SUVs.展开更多
基金supported by the science and technology innovation Program of Hunan Province(Grant No.2022RC3044)the Postgraduate Scientific Research Innovation Project of Hunan Province(Grant Nos.CX20240257 and CX20240283)the Graduate Innovation Project of Central South University(Grant Nos.2023XQLH127 and 2023XQLH125).
文摘With the iteration of vehicle brand design,the applicability of the current Mobile Progressive Deformable Barrier(MPDB)scheme has declined.The Advanced Chinese Mobile Progressive Deformable Barrier(AC-MPDB)is introduced,which incorporates segmented Zdirectional design and increased mass distribution to better align with the Chinese vehicle front-end structure.This study utilizes Camry and Rogue models to design an MPDB-to-vehicle and a vehicle-to-vehicle simulation matrix.The compatibility of the barrier schemes,Euro-NCAP MPDB(E-MPDB)and AC-MPDB,is evaluated using energy equivalent speed,occupant load criteria,peak force,and acceleration.The simulation results indicate that,compared to E-MPDB,the AC-MPDB barrier scheme exhibits excessive stiffness for medium-sized sedans with smaller mass but demonstrates better compatibility with SUVs.Further analysis of the target vehicle’s longitudinal beam deformation animation and pedal intrusion reveals that AC-MPDB achieves superior vehicle reproducibility,particularly for SUVs.
