Aircraft Wing Case
- Model-test mismatch
- Inability to certify
- High test/model cost
- Product launch delay
The anti-ice system is composed of a tube through which a hot fluid circulates and allows to prevent ice formation on the wing leading edge. When cold, the tube shrinks creating some free-play with its support, leading to nonlinear vibrations.
Proper identification of the nonlinear connection and creation of a nonlinear model allowed to properly represent the dynamics of the structure.
Model validation is achieved. Product development can continue without further delay.