Jilin University

Qingping Liu

Luquan Ren

Zhenglei Yu

Yanlong Shao

Hongxiu Yang

Yuting Liu

Xiaolong Zhang

Zhanrong Cui

Yunhong Liang

Xiaoming Qiu

Zhihui Zhang

Liang Ge

Wei Yan

Guilan Zhang

Qingquan Zhang

A rigid-flexible coupled unmanned aerial vehicle (UAV) morphing wing and an additive manufacturing method thereof are disclosed. A shape memory alloy (SMA) strip/wire for controlling the wing upward deformation and an SMA strip/wire for controlling the wing downward deformation are arranged alternately, and a plurality of reinforcing ribs are arranged at intervals on the SMA strips/wires for controlling the wing upward deformation and the SMA strips/wires for controlling the wing downward deformation. The SMA strips/wires for controlling the wing upward deformation and the SMA strips/wires for controlling the wing downward deformation are arranged on a flexible substrate, and are wrapped with an insulating covering. The SMA strips/wires for controlling the wing upward deformation and the SMA strips/wires for controlling the wing downward deformation each are provided with an electric heating element.

Rigid-flexible coupled UAV morphing wing and additive manufacturing method thereof

The invention relates to a non-stick cooking utensil, wherein protrusions are arranged on interior wall of the utensil to form a non-smooth surface, said protrusion has a height of 20-999 &#x3bc;m and a projection area of 314-783431 &#x3bc;mwith respect to the interior surface of the utensil, the protrusions are so distributed that the total projection area of protrusions on the surface of the interior wall is about 10%-60% of the surface area, a coating film is formed on said non-smooth surface with protrusions. As compared with utensils with smooth surface, the sticking intensity and stickiness between foods and the utensil of present invention may be decreased by 60%-80%.

Non-stick cooking utensil

Growing community of inventors

Province, China

Qingping Liu