Minimizing Carbon Emissions In The Parameters Process Optimization Of Hub Bearing Riveting

The rapid development of the manufacturing industry has brought convenience to human life and has also caused serious environmental problems.The concept of minimizing carbon emissions has become an important indicator in the manufacturing process industry,and it also puts higher requirements on the assembly process.As an important part of the car,the parameters process optimization of the hub bearing riveting unit is related to the safety,stability and comfort.In this paper,the third-generation of hub bearing units,which are widely used at present,are used as carriers to analyze the carbon emissions generated during the riveting process.Under the premise of ensuring good performance,the parameters of the rivet head are optimized to achieve the minimum carbon emission.The main research focuses of this paper are:(1)Analyze the riveting manufacturing process of a third-generation hub bearing unit,and then analyze carbon emission characteristics,and define the generalized boundary of carbon emissions.Furthermore,the carbon emission estimation model is further simplified into the sum of the carbon emissions generated by the three main aspects of riveting,riveting and auxiliary materials,and the corresponding quantitative derivation is obtained: using the data to derive the energy emission factor and using life cycle method to get the estimation model of carbon emissions from riveting heads and lubricating fluids.(2)The traditional methods can’t quantify the complicated riveting process.In this paper,the finite element method is used to simulate the riveting process.According to the experimental data and the actual requirements of the project,the finite element model is constructed and the validity of the model is verified.(3)Combined with the finite element model,the forming surface of the rivet head is analyzed,the design variables are simplified,the reasonable sample points are extracted by the orthogonal table method,and the optimization is based on the Kriging agent model.The rivet head is optimized under the premise of ensuring the good performance of the wheel hub bearing unit.So that the energy consumed in the riveting process is reduced by 23.47%.The introduction of a carbon emission estimation model achieves one carbon emission reduction of 3.31 kg and achieves the minimum carbon emission goal.