FIELD: wind-power engineering. SUBSTANCE: blade has main load-bearing member steel tubular spar 1 of simplified form with rectilinear generatrices at reduction from blade contour to height of connecting parts made of profiles 8 and supported by booms of spar 1 through adhesive joints 9 and clamped together at negative allowance by means of profiles 10 connected with booms of spar 1 by means of bolts 11 at distance not exceeding half the distance between the neutral axis of spar and its outer contour and profiles 12 fastened with profiles 8 and skins 4. Connected with profiles 8, 19 and 12 are ribs 5, 6 and 7 which form blade contour together with skins 2 and 3 riveted to them and detachable skins 4. Skins 2, 3 and 4 are separated in span and are movably coupled through cover plates 13 covered with solid coating 14 (type BAП-3) over the mated surfaces possessing low friction coefficient. EFFECT: reduced consumption of labour required for manufacture of blade, reduced mass and increased service life. 2 cl, 8 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| WINDWHEEL BLADE | 2011 |
|
RU2469208C2 |
| WING BAY OF SUPERSONIC FLYING VEHICLE | 1989 |
|
SU1757194A1 |
| BLADE OF AERODYNAMIC MODEL OF AIRSCREW AND METHOD OF ITS FABRICATION | 2013 |
|
RU2537753C1 |
| AIRCRAFT WING, AIRCRAFT WINGS CAISSON, CENTER WING, SPAR (VERSIONS) | 2019 |
|
RU2709976C1 |
| TORSION BOX OF WING FROM COMPOSITE | 2013 |
|
RU2532255C1 |
| AIRCRAFT WING | 2014 |
|
RU2557638C1 |
| PROPELLER AERODYNAMIC MODEL VANE AND METHOD OF ITS FABRICATION | 2010 |
|
RU2444716C1 |
| POWER STRESS BOXES AND METHODS TO OBTAIN THEM | 2014 |
|
RU2641026C2 |
| BLADE AND METHOD OF ITS PRODUCTION | 2018 |
|
RU2688603C1 |
| LOAD-BEARING STRUCTURE FOR AERODYNAMIC SURFACE | 1994 |
|
RU2133693C1 |
