| 摘要 |
<p>A profiled element used is disclosed for generating a force, the profiled element comprising a material having an active surface; a plurality of cavities located on the active surface of the material, each cavity having an opening and a depth of a micrometric size. Each cavity is hermetically sealed on the opposite side of the cavity such that air can enter or exit the cavity on the active surface using only its opening. An airflow circulation against the active surface of the material causes a pressure change on the active surface and inside each of the plurality of cavities and a force is generated.</p> |
