3D Printing Technology -
Toroidal Propeller
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Toroidal propellers can reduce the noise generated during rotation.
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Toroidal fan blades with different requirements can be produced using 3D printing and other additive manufacturing technologies.
Recently, MIT-Lincoln Laboratory developed a toroidal fan blade that effectively reduces the noise generated by traditional fan blades.
When traditional fan blades are used on unmanned aerial vehicles, ships, and airplanes, they often produce a lot of noise. This noise is mainly caused by the vortex generated at the tip of the fan blade. The principle of toroidal fan blades in reducing noise is that their shape effectively disperses the vortex at the end of the fan blade.
"Compared with traditional fan blades, toroidal fan blades can effectively reduce noise."
Tests on unmanned aerial vehicles showed that toroidal fan blades can effectively reduce noise in the frequency range of 300Hz to 10000Hz, which is the most sensitive frequency range for humans. Therefore, toroidal fan blades can effectively reduce noise when rotating.
Toroidal fan blades can be applied to different places by adjusting the number and angle of the blades. Toroidal fan blades can be quickly and mass-produced using 3D printing and other additive manufacturing technologies. Compared with traditional manufacturing methods, it is difficult to produce toroidal fan blades with complex shapes. At the same time, different parameters of the fan blades need to be adjusted for different applications. 3D printing can quickly produce several prototypes with different parameters before mass production, accelerating the product development cycle.
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