A Synchronous Evolution Method for Multi-Scale Modeling of Bolted Connection Structure Oriented towards Digital Twins
In response to the issues of low efficiency and inability to meet the requirements of syn-chronous evolution of digital twins in traditional aerospace structures multi-scale simulation,particu-larly in relation to crack propagation and resulting stiffness degradation,a multi-scale modeling,sim-ulation,and synchronous evolution method is proposed based on the submodeling technique,aiming to balance computational efficiency and solution accuracy.Taking the commonly used bolted connec-tion plate as the research object,the proposed algorithm is implemented using Abaqus finite element software,and methods such as stiffness equivalence and sub-division are proposed to accelerate the solution process.The feasibility and practicality of the proposed method are verified through simula-tions on bolted plate structures,which align with engineering knowledge,providing a reference for the synchronous evolution of aerospace structures in digital twins.
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