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针对大展弦比复合材料机翼各部位的受力和气动特点,将机翼进行分块。在满足结构强度和稳定性等约束条件的前提下,将机翼各块的铺层厚度和铺层顺序作为设计变量,机翼的质量和颤振速度作为目标函数,进行多目标、多约束条件下的优化设计。经过优化后,机翼质量下降21.62%,颤振速度提高12.97%,且满足所有约束条件。这表明,铺层厚度和铺层顺序对机翼的质量和颤振速度有较大的影响,整体设计时,应重点考虑。
In view of the force and aerodynamic characteristics of various aspects of the large aspect ratio composite wing, the wings are divided into blocks. On the premise of satisfying the constraints of structural strength and stability, taking the ply thickness and ply sequence of each wing as the design variables and the wing mass and flutter velocity as the objective functions, the multi-objective and multi-constraint conditions Under the optimal design. After optimization, wing quality decreased by 21.62%, chatter vibration speed increased by 12.97%, and all the constraints were met. This shows that the thickness of the ply and the order of ply have a great influence on the quality and flutter speed of the wing, and the overall design should be emphatically considered.