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Olympic Runners with Sinumerik and ShopMill Olympic Runners ...

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11<br />

All pictures: P. Koerber<br />

With the MPM (Model Positioning Mechanism), the model in the wind tunnel of DNW can be accelerated up to 2 g<br />

Parallel kinematics <strong>with</strong> 1FN3 linear motors<br />

for aircraft wind tunnel testing<br />

Dynamic Models<br />

Using a parallel kinematic design construction, the operators of the low-speed<br />

wind tunnel (Niedergeschwindigkeitswindkanal, NWB) in Brunswick, Germany<br />

are able to achieve never-before-seen dynamic load results, enabling aircraft<br />

designs such as those for the new Airbus A380 to be optimized <strong>with</strong> very little<br />

effort. Six Simodrive 1FN3 linear motors <strong>and</strong> a <strong>Sinumerik</strong> 840D NC control<br />

form the heart of the “Model Positioning Mechanism” (MPM).<br />

The Brunswick low-speed wind tunnel<br />

(NWB) is very appropriately located<br />

at the site of a former airport. In existence<br />

for over 40 years, the research facility<br />

located on the grounds of the German<br />

society for aeronautics <strong>and</strong> aerospace (DLR)<br />

is part of a larger wind tunnel organization<br />

which, as a foundation under Dutch<br />

law known as DNW (German-Dutch wind<br />

tunnels), operates a total of 12 aeronautic<br />

measurement wind tunnels in the Netherl<strong>and</strong>s<br />

as well as Germany.<br />

Six of the test facilities are located in the<br />

Netherl<strong>and</strong>s, <strong>and</strong> another six in Germany,<br />

including in Brunswick, Goettingen <strong>and</strong><br />

Cologne. Together, they cover a speed range<br />

from low subsonic to seven times the speed<br />

of sound (mach 7).<br />

<br />

motion world 1/2007

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