Correlation study between the square cone energy-absorbing structure and the frontal collision behavior of leading vehicles

Abstract In order to study the influence of square-cone energy-absorbing structures on mechanical behaviour collision performance leading vehicle, a parameterization method for rapidly changing was proposed. Firstly, finite element simulation model vehicle with structure constructed. Then, platform force, slope force and initial peak force-displacement curve derived from were studied vehicle. Finally, correlation established by response surface method. The results showed that increase can effectively buffer longitudinal impact train reduce nodding attitude train. not only vertical train, but also lateral swing An in certain extent may lead change deformation mode, thereby reducing energy-absorption efficiency. guide design predict