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Establishing Blend Repair limit of blisks –from A perspective of Vibration amplificatiOn

Project description

Keeping blisks and their blades spinning

Aeroengines do their work in extremely harsh environments, and functional integrity of components is paramount to airplane safety. Blisks, or bladed disks, are single-piece turbomachinery components that have long been part of aircraft engine compressors. The one-piece design saves space and weight and enables better blade dynamics. However, when a blisk becomes damaged, individual blades cannot be easily replaced, and repair while ensuring integrity can be challenging. Blending, a low-cost machining method to repair damage, changes blade geometry and thus changes vibration frequency and aerodynamic characteristics. The EU-funded BRAVO project is developing a comprehensive vibration evaluation tool to assess blended (repaired) disks in order to enhance the safety and lifetime of these expensive and critical aeroengine components.


Net EU contribution
€ 183 473,28
Corso Duca Degli Abruzzi 24
10129 Torino

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Nord-Ovest Piemonte Torino
Activity type
Higher or Secondary Education Establishments
Other funding
€ 183 473,28