为了研究大展弦比柔性机翼结构建模准则与方法,本文采用累积线性法和当量刚体法来探索和解决这一问题。通过数值仿真分析得出本文采取的做法不仅能够完成大展弦比柔性机翼结构建模,而且还能给出满足工程精度要求的解。最后,给出建模过程中的7个步骤,可以实现大展弦比柔性机翼结构建模与求解。 In order to study the criteria and method of modeling the flexible wing structure with large aspect ratio, this paper uses cumulative linear method and equivalent rigid body method to explore and solve this problem. Through numerical simulation analysis, the method adopted in this paper can not only complete the modeling of large aspect ratio flexible wing structure, but also provide the solution to meet the requirements of engineering accuracy. Finally, given the seven steps in the modeling process, the modeling and solution of large aspect ratio flexible wing structure can be achieved.