Turbine rotor blade damping vibration attenuation structure and aero-engine

• Main Authors: YOU HONGDE, TAN SIBO, ZHOU LIMIN, WEI WENTAO
• Format: Patent
• Language: Chinese; English
• Published: 09.01.2024
• Subjects: BLASTING; ENGINE PLANTS IN GENERAL; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; STEAM ENGINES; WEAPONS

The invention provides a turbine rotor blade damping vibration attenuation structure and an aero-engine. The damping vibration attenuation structure comprises a turbine disc provided with mortises, and a damping vibration attenuation device arranged on the turbine disc, the turbine rotor blades are mounted in the turbine disc mortises and are provided with edge plates, damping block mounting grooves are formed between the edge plates of every two adjacent blades, and blade tenon bosses are arranged on the inner sides of the edge plates; the tower-shaped damping block is mounted in the damping block mounting groove, the tower-shaped damping block comprises a tower-shaped part and outer edges, and the outer edges are in lap joint with the blade tenon bosses of the two adjacent turbine rotor blades respectively, so that relative fixation of the tower-shaped damping block is achieved; wherein the two sides of the tower-shaped part of the tower-shaped damping block are provided with inclined planes, the inner side