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Kumar Patil, Ajit
- Numerical and Experimental Study of Vibrations Caused by Defects in Fan Blades
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Authors
Affiliations
1 The National Institute of Engineering, Mysuru-570008, Karnataka, IN
1 The National Institute of Engineering, Mysuru-570008, Karnataka, IN
Source
Journal of Mines, Metals and Fuels, Vol 71, No 6 (2023), Pagination: 770-775Abstract
Damage monitoring of rotating blades is becoming increasingly important, because blades in many applications like turbine engines, marine propellers, and turbo engines are exposed to high temperatures, high strains, and severe vibrations. Due to continuous operations of these blades fatigue cracks can emerge after an hour of service, these causes a blade failure and can potentially ruin an entire engine. The damage identification of blades by vibrational analysis is discussed in this paper, numerical analysis is carried out using ANSYS Workbench program to simulate a FEM model, and results are compared to the experimental analysis, where fault simulation machinery equipment used to know the vibration responses of a healthy and defective blades. Multiple distinct peaks were observed at the blade resonance region in case of blades having a defect when compared to healthy blades showing one distinct peak in the blade resonance region which helps in analysis helps in understanding the damage detection of blades early, reducing the likelihood of catastrophic accidents.Keywords
Vibration, Damage in fan blades, Mathematical modelling, Blade Health Monitoring.
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