Characteristic Analysis of Cab Roll-Over Protective Structure Based on Finite Element Method
The reliability of roll over protection device(ROPS)design directly affects whether the driver can get effective protec-tion.According to the actual vehicle size and visual field requirements,the ROPS structure design and deflection limit DLV de-sign were carried out.The three-dimensional model of the cab was established based on UG,and the finite element analysis model was established.According to the national standard about ROPS,the safety of cab rollover protection was analyzed,focusing on the analysis of the load in different directions.Based on the cab rollover test bench,the lateral load was selected to test to verify the reliability of the model analysis.The results show that:when the lateral force increases to140kN,the energy absorbed by the cab is 16672J,which meets the requirements of minimum energy absorption capacity.When the lateral load is loaded,the maximum stress and displacement are 372MPa and 11.86mm,which meet the requirements of material loading and energy loading.The maximum stress and displacement are obtained,which meet the requirements of material and design size.And the error between the simulation results and the simulation results is less than 4%,which shows that the simulation analysis model is reliable.The designed anti overturn protection device can play a protective role,which provide a reference for such design and production.
CabRollover Protection DeviceFinite Element MethodStressDeflection Limit
万方数据
维普
