Rotor blade assembly, turbomachine comprising a rotor blade assembly and method of assembling a rotor blade assembly

摘要

A rotor blade assembly has aerofoil, root and supplementary components. The aerofoil component includes an aerofoil shaped section and aerofoil connection section for connecting the aerofoil component with the root component. The root component includes a first platform section, first root connection section and root section arranged for securing the root component to a further component. The supplementary component includes a second platform section and second root connection section. The aerofoil shaped section includes metal foam. The aerofoil component, root component and supplementary component are arranged such that the root component and supplementary component are attached to each other; the first platform section and second platform section build a common platform of the rotor blade assembly; the first root connection section and the second root connection section build a common cavity between the common platform and the root section; and the aerofoil connection section is secured in the common cavity.

主权项

1. A rotor blade assembly comprising
an aerofoil component, a root component and a supplementary component, wherein the aerofoil component comprises
an aerofoil shaped section andan aerofoil connection section for connecting the aerofoil component with the root component; the root component comprises
a first platform section,a first root connection section anda root section arranged for securing the root component to a further component; the supplementary component comprises
a second platform section anda second root connection section; the aerofoil shaped section comprises metal foam; and the aerofoil component, the root component and the supplementary component are arranged such that
the root component and the supplementary component are attached to each other;the first platform section and the second platform section build a common platform of the rotor blade assembly;the first root connection section and the second root connection section build a common cavity between the common platform and the root section; andthe aerofoil connection section is secured in the common cavity.