| 摘要 |
<p>The invention relates to a method and a stand for testing blades to be employed in aircraft motion as well as in the field of renewable energy, for wind turbines operation. According to the invention, the method consists in that, in a first stage there is performed the fastening of a blade (1), by means of a rotary fastening device (A) and some adjustable clamping systems (B and C), onto a stand (SV), followed by a second stage consisting in transmitting the stress exerted upon the blade (1) in the horizontal plane, in the vertical plane and with the possibility of rotation during the tests, the said stresses being obtained as a consequence of the controlled drive of some pneumatic cylinders (5) and a stepper motor (8), the movements being controlled by a computer unit (D). The stand, as claimed by the invention, consists of a rigid support comprising some horizontal and vertical standing surfaces (2 and 3), respectively, on which there is placed a rotary device (A) for fastening some blades (1) and some adjustable clamping systems (B and C) driven by a pneumatic cylinder (5), whose horizontally and vertically adjustable motion, at variable force and frequency, transmitted onto the blades (1), is controlled by a computer unit (D), with a view to achieving complex strains, in accordance with the test sheets.</p> |
