| 摘要 |
The invention relates to a rotor blade assembly comprising an aerofoil component (200), a root component (300) and a supplementary component (400). The aerofoil component (200) comprises an aerofoil shaped section (210) and an aerofoil connection section (220) for connecting the aerofoil component (200) with the root component (300). The root component (300) comprises a first platform section (310), a first root connection section (320) and a root section (330) arranged for securing the root component (300) to a further component, in particular a rotor disc. The supplementary component (400) comprises a second platform section (410) and a second root connection section (420). The aerofoil shaped section (210) comprises metal foam (101). Finally, the aerofoil component (200), the root component (300) and the supplementary component (400) are arranged in a way that the root component (300) and the supplementary component (400) are attached to each other; the first platform section (310) and the second platform section (410) build a common platform of the rotor blade assembly; the first root connection section (320) and the second root connection section (420) build a common cavity between the common platform and the root section (330); and the aerofoil connection section (220) is secured in the common cavity. The invention also relates to a turbomachine comprising such a rotor blade assembly. Finally, the invention also relates to a method of assembling such a rotor blade assembly. |
