When an aero-engine operates at tens of thousands of revolutions per minute, the centrifugal force exerted on its turbine blades is tens of thousands of times their own weight.In such an extreme environment, vibration becomes a potential invisible killer.An unrecognized resonance can cause the blade to fracture within milliseconds, leading to catastrophic consequences.Modal testing of blades serves precisely as the stethoscope and early warning system to prevent such risks.
- Modal verification is of great significance to the design and service of aero-engine blades.
1.Avoid Resonance
By accurately measuring the natural frequencies of the blades, resonance zones corresponding to the engine’s operating frequencies can be identified and avoided in advance, fundamentally preventing resonance fatigue and enhancing safety and reliability.
2.Optimization
By optimizing the blade structure, material and mass distribution using modal data, weight reduction and performance enhancement can be achieved while ensuring vibration performance, balancing reliability and fuel efficiency.
3.Improve Durability
Based on modal characteristics, the fatigue life of blades can be predicted, potential failure points can be located, and targeted design improvements can be made to suppress high-risk vibration modes, thereby extending service life and enhancing durability and reliability.
- Experimental Preparation
1.Equipment: Infrared Scanning Laser Vibrometer LV-FSC500
2.Sample: Aero-engine Blade
3.Excitation: Signal Generator + Shaker
4.Data Acquisition and Analysis Software Independently Developed by SunnyInnovation
Engine Blade Infrared scanning laser vibrometerLV-FSC500
- Modal Shape Results
1.Time domain data
2.Experiment modal
385Hz 1435Hz 1764Hz
2458Hz 3081Hz 3521Hz
Using Light as a Measure to Explore the Boundaries of Power
The advancement of aero-engines begins with in-depth understanding and precise control of every core component.
Equipped with non-contact, high-precision, full-field measurement capabilities, SunnyInnovation Infrared Scanning Laser Vibrometer has become an indispensable "discerning eye" in the R&D, manufacturing, and fault diagnosis of aero-power systems.
It is more than just a piece of equipment; it embodies a philosophy:
to perceive the most intense dynamics in the gentlest way,and to safeguard the most critical safety with cutting-edge optical technology.Every laser scan provides solid data support for building stronger, more reliable, and quieter "Chinese Hearts".From precision blades in the laboratory to the roar of entire engines soaring in the sky,respecting and mastering vibration is an eternal pursuit for humankind to continuously break through the boundaries of power.
SunnyInnovation is proud to be your silent partner, holding light as a measure, every step of the way.