某型机翼内翼结构布局优化模型，包括两类设计变量：位置变量和尺寸变量。
A certain structure optimization design model that contains both position variables and size variables were given in this paper.
凸出翼结构的采用比普通螺母增加了金属与金属间的接触面，起到楔入紧固的作用，防盗性能更卓越。
Compared with the common nut, a contact surface between metals is added by adopting the protruded wing structure, plays a role of wedging and fastening and has more excellent theftproof performance.
试验证明该理论可行并能用于研究无铰旋翼结构参数对桨叶气弹稳定性的影响，也能用于直升机旋翼的型号设计。
The experimental results verify that the feasible theory can be used to investigate the effects of structural parameters of hingeless rotor on aeroelastic stability.
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