反应容器转轮超静定支撑系统的载荷分析OA

The support structure of wheels is an important component of post-treatment reaction vessels.To improve the safety strength of the reaction vessels,the support system adopts a statically indeterminate structure.In view of the strength of supporting rollers and load-bearing characteristics of the system,based on the energy method,Lagrange multipliers were introduced and the law of energy conservation was combined to calculate the normal forces on each roller,thus solving the bending stress and contact stress.A simple 3D model was built,and by adopting finite element software,the stress distribution and variation laws of each roller were analyzed,with the results verified via experiments.The load distribution factor was defined,and the influence laws of manufacturing errors on the load distribution factor were analyzed by utilizing SPSSAU.The results show that the maximum bending stress of the roller is 42 MPa,which is much smaller than the yield strength of the material.The maximum error between the finite element simulation results and theoretical results is about 8％,and the accuracy of the proposed method was verified by strain experiments on rollers.The load distribution factor negatively correlates with the curvature radius of the roller surface,and positively correlates with the curvature radius of the wheel surface.