变体后缘索网传动机构的优化设计

变体后缘索网机构的驱动效率很大程度上取决于各个索的空间布置。首先,建立了索网机构的力学模型,给出了索网/基板非线性微分方程的差分迭代格式;然后,采用响应面法,建立了驱动力和索蒙皮最小距离的显式函数;最后,采用序列二次规划算法来求解该优化问题。计算结果表明:驱动力和索蒙皮最小距离的响应面模型具有很高的拟合精度;优化后索网机构的驱动力降低了27.7%。

Optimization of Transmission Mechanism with Cable Networks for Morphing Trailing-Edge

The driving efficiency of the cable network transmission for morphing trailing-edge depends largely on spatial arrangement of each cable. Firstly, the mechanical model of the cable network transmission is developed. The differential iterative scheme is given for the nonlinear differential equations of the cable network and mid-plate. Secondly, the explicit function of driving force and the minimum distance between cable and skin is introduced by use of the response surface methodology. Lastly, the optimization problem is solved by the sequential quadratic programming algorithm. The results show that the response surface models of driving force and the minimum distance between cable and skin have high accuracy. The driving force is reduced by 27.7% in the optimized cable network.