In order to solve the problem that the riveting process of carbon fiber reinforced polymer (CFRP) and metal material laminated components is more complicated than that of a single material

a method for sensitivity analysis of the riveting process parameters of laminated composites based on the method of moment-independent PAWN is proposed. Firstly

taking CFRP and aluminum alloy (Al) heterogeneous laminated composite structure as the research object

the simulation and analysis model of riveting CFRP/Al laminated structure is established by using the finite element method

and the correctness of the simulation and analysis model is verified by experiments. Secondly

a proxy model of riveting process parameters based on the random forest method is established with the riveting interference amount as the target; furthermore

data extension is carried out through the proxy model

and a global sensitivity analysi s based on the moment-independent PAWN method is carried out with 17 riveting process parameters as input variables and the riveting interference amount as the output variable

and the sensitivity coefficients based on this method are given. Among the global sensitivity coefficients of riveting process parameters on riveting interference amount

the sensitivity coefficients of elasticity modulus and thickness of the heterogeneous laminated composites are 0.16921 and 0.11837

respectively

followed by the coefficients of 0.012 for the displacement load and 0.011 for the rivet diameter. The values of other process parameters are small

and the sensitivity coefficients of some parameters that have insignificant effects on the riveting interference amount are close to zero.