High Lift Systems

High Lift Systems

Sii Netherlands has a long history in the development of high-lift systems for various aircraft manufacturers.

High-lift devices is a component or mechanism on an aircraft wing that increases the amount of lift mainly during take-off and landing conditions. Common movable high-lift devices include wing flaps and slats. Modern high-lift systems can be complex and are typically deployed hydraulically or with servos.

The most common high-lift devices in commercial airliners are flap and slats, these are a movable portion of the wing that can be extended to produce extra lift. When these control surfaces are deployed this re-shapes the wing section to give it more camber or surface area. Design and parameters of these control surfaces are a compromise between differing requirements.

 

Activities per aircraft type:

Airbus A380

Full engineering development of the inner flap. Design and FEM Modelling and analysis of flap including inboard trunnion interface.

Boeing B747-8I

FEM Modelling and Analysis of inner flap.

Airbus A350-900 / 1000

Flap Mechanism (Kinematic) Analysis and Clearance Studies

Particular Risk Assessment on High Lift Systems

Design and FEM Modelling and Analysis of flap track supports, fairings and flap

EMBRAER E190 / E195 / E170 / E175

Flap Mechanism (Kinematic) Analysis and Clearance Studies

Design and FEM Modelling and Analysis of fairings and flap

Airbus A321 XLR

FEM Modelling and Analysis of inner flap trunnion area