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非线性气动弹性分析中,涉及到非线性流体动力学和非线性结构动力学的耦合问题.阐述了国内外应用计算流体动力学(computational fluid dynamics,CFD)/计算结构动力学(computational structural dynamics, CSD)耦合求解技术来处理非线性气动弹性问题的研究现状,全面分析了流体域和结构域的非线性特征模拟技术、高效网格运动策略、耦合界面相容性条件、耦合计算效率及降阶技术、气动弹性实验及算法验证、多学科耦合求解等关键技术,总结了相关最新研究的方法和成果,对比分析了其优缺点并提出了展望.
In the nonlinear aeroelastic analysis, the coupling problem between nonlinear fluid dynamics and nonlinear structural dynamics is discussed. At home and abroad, the computational fluid dynamics (CFD) / computational structural dynamics CSD) coupled solution technique to deal with the nonlinear aeroelastic problems, a comprehensive analysis of the nonlinear characteristics of the fluid domain and domain simulation techniques, efficient grid motion strategy, coupling interface compatibility conditions, the coupling calculation efficiency and reduced order Technology, aeroelasticity experiment and algorithm validation, multidisciplinary coupling solution and other key technologies, summarizes the latest research methods and results, comparative analysis of its advantages and disadvantages and put forward the prospect.