Swiss researchers create a UAV with feathers

The dynamics of science and technology The nature of nature can always bring a variety of inspiration to human society. Previous researchers had been inspired by beetles and other creatures to create drones. According to foreign media reports, recently researchers from the Swiss Federal Institute of Technology in Lausanne (EPFL) Intelligent Systems Laboratory (LIS) were inspired by birds to create a "feather" drone. The UAV has a deformable wingspan that allows it to fly quickly, make sharp turns and withstand strong winds, just like birds.


Birds can fly so efficiently because they can adjust the shape of their wings. Previously, scientists have developed deformable wings for aircraft by carefully studying the wings of birds. Now LIS researchers have discovered that it is also possible to create a deformable wingspan for drones.
The researchers said that when the drone flies between obstacles, it can adjust the shape of its "wings" and can complete sharp turns and withstand the test of strong winds. They built a mechanism that allowed this large artificial feather to be fixed to the wing. These artificial feathers are made of thin layers of glass fiber and nylon.
The researchers said that when the wings are fully deployed, the drones can perform "rapid flight." When it encounters strong winds, it can retract its "wings" to become more streamlined. According to researchers, drones can be used in low-altitude urban environments.

Stainless Steel Plain Dutch Weave Mesh, also known as wire mesh, it is made of high quality stainless steel wire. Similar to plain weave, it is weaved line by line. But for this kind of Stainless Steel Wire Cloth, the difference is the diameter of the weft is more thicker than the diameter of the warp. The weft wire is close together and then form a conical or wedge shaped hole. There is a big contrast between warp and weft wire diameter and density, so the net thickness and filtration precision and service life is significantly improved than common steel mesh. the filtering precision is running cannot be achieved for plain weave and Twill Weave Mesh screen.

Weaving:  There are two kinds of weaving technology of Dutch woven Stainless Steel Mesh . One is plain Dutch knitting and the other is twill Dutch knitting. The weaving technology of Dutch woven stainless steel mesh combines Dutch knitting and twill weaving techniques. The coarser thread interleaved the finer threads, weaving each thread through the weft. The weft wire is closely aligned to form a cone or wedge open hole.

Features: Dutch woven stainless steel mesh features 4 points:

              1."Zero" mesh, the warp wire diameter than the weft to the larger diameter.

              2. Each weft is very tight

              3. High precision, high liquidity

              4. Filter more solid particles than square or rectangular mesh holes

Material: 201,302,304 (L), 310,316 (L), etc

Application: The Dutch weave Stainless Steel Wire Mesh is one of the best filter medium in hydraulic system, especially the spatial filtering critical applications, as well as the fuel and combustion chamber filter, sediment filter, vacuum filter, etc.

              fine wire mesh    metal mesh screen

       The warp wire (D1) : all longitudinal braided lines.

        The weft wire (D2) : all horizontal weaving lines.

        Aperture : the distance between two meridians or two weft.

        Mesh number:number of mesh holes per inch.

        Thickness (T) : thickness of wire mesh.

Specifiaction list:

      

Plain Dutch Woven Stainless Steel Mesh

SPEC

NUMBER OF HOLES PER INCH

WIRE DIAMETER

APERTURE(micron)

40

10mesh x 64mesh

0.55x0.42

260

50

12mesh x 75mesh

0.45x0.35

220

80

24mesh x 110mesh

0.35x0.25

160

100

25mesh x 140mesh

0.28x0.20

100

120

30mesh x 150mesh

0.25x0.18

80

140

35mesh x 180mesh

0.20x0.16

70

160

40mesh x 200mesh

0.18x0.13

60

180

45mesh x 220mesh

0.16x0.12

56

200

50mesh x 250mesh

0.15x0.11

50

240

60mesh x 300mesh

0.14x0.09

45

260

65mesh x 320mesh

0.13x0.08

36

280

70mesh x 400mesh

0.125x0.07

34

300

80mesh x 700mesh

0.11x0.039

32







Stainless Steel Plain Dutch Weave Mesh

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