Simulation Analysis of Safety Factors of Three-wave Guardrail on Superhighway
Based on HeperWorks and LS-DYNA software,the collision simulation was carried out,and the single influencing factor and multiple influencing factors of three-wave guardrail were analyzed.The results show that when the thickness of corrugated beam is 5 mm,the three-wave guardrail has better protection.When the column spacing is 2000 mm,the maximum dynamic deformation of guard-rail decreases.The peak value of vehicle synthetic acceleration exceeds the safety value of 20g,which cannot ensure the safety of passengers.The maximum dynamic deformation and tripping resistance of guardrail are directly proportional to collision speed,collision angle and column spacing,and inversely proportional to the thickness of corrugated beam.The synthetic acceleration of automobile is directly proportional to collision speed and collision angle,and inversely proportional to the thickness of corru-gated beam and column spacing.
万方数据
维普
