Research on 3D-2D Coupled Simulation Analysis Method for Double Lip Rubber Sealing Based on Finite Element
Taking a certain hybrid vehicle model as an example,this study used the finite element software Abaqus to establish a model of double lip rubber on the sealing flange faces of the vehicle-mounted PTC ceramic resistor heater.Through the 3D-2D coupled simulation method,the sealing of the rubber under the combined ac-tion of bolt force,temperature,and pressure was considered.The results show that,according to the 3D finite element model,with the increase of temperature and pressure,there will be an opening amount between the seal-ing flange faces,with the pressure accounting for approximately three times the temperature.By incorporating this opening amount into the 2D finite element model and adjusting the fully compressed state of the rubber,a closer sealing result to reality can be obtained.The research results indicate that the 3D-2D coupled simulation method can more accurately simulate the sealing situation of rubber under actual working loads,enabling the i-dentification of risks in the early stages of development and providing prior knowledge.
Finite element methodDouble lip rubberBolt forceTemperatureAssembly tolerance3D-2D combined simulation
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