DETUNING TRAILING EDGE COMPOUND LEAN CONTOUR

摘要

A rotor blade comprises a blade platform and an airfoil. The airfoil comprises a blade tip, a leading edge, and a trailing edge with a stiffening compound lean contour. The blade tip is radially opposite the blade platform, and defines a blade span between the blade itself and the blade platform. The leading and trailing edges extend from the blade platform to the blade tip to define blade chords between the leading edge and the trailing edge. The compound lean contour comprises a positive lean section located at the lean tip, and extending along a lean axis to a lean end. The negative lean section is located radially inward of the positive lean section, and extends along the lean axis to the lean end.

主权项

1. A rotor blade comprising:
a blade platform and an airfoil comprising:
a blade tip radially opposite the blade platform, and defining a blade span therebetween; andleading and trailing edges extending from the blade platform to the blade tip to define blade chords between the leading edge and the trailing edge;wherein the trailing edge has a compound lean contour comprising:
a positive lean section located at the blade tip, and extending along a lean axis to a lean end;a negative lean section located radially inward of the positive lean section, and extending along the lean axis to the lean end.