| Mobile substation vehicles is a kind of heavy-duty precision electrical equipment.As an emergency rescue equipment in power grid system,mobile substation often needs to go in and out of bad terrain and bear various dynamic loads.In order to ensure the structural performance of mobile substation vehicles under the influence of dynamic impact under complex working conditions,simulation analysis of mobile substation is needed.The main contents are as follows:Firstly,through the comprehensive analysis of the mobile substation operation content,this paper summarizes the necessary simulation conditions,and formulates the simulation conditions.After simplifying and repairing the original vehicle model,a simulation model is obtained.With the help of virtual prototype software,the kinematics model of mobile substation is established,and the real excitation and load are simulated and input,and the kinematic response data of vehicles under various complex conditions are obtained.The kinematic data are transferred to the finite element analysis model as the boundary conditions of the finite element analysis.Through the finite element software,the dynamic and static conditions of the mobile substation are simulated to verify and check the structural strength of the vehicle.In order to improve the accuracy,the full model simulation is used for the vehicle,and the transient analysis method is used to focus on the key components and connection positions of the vehicle.According to the analysis results,the vehicle performance is preliminarily evaluated,and feasible vehicle optimization suggestions and structure modification scheme are put forward.Through the joint simulation of 3D modeling software and finite element software,the response surface model of outrigger position and vehicle stress deformation is established.The optimal design point of outrigger is obtained by using MOGA algorithm.The new outrigger position reduces the maximum stress and the maximum displacement. |
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