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Erstellt / Aktualisiert 22.01.2018 / 23.01.2020
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0 Exakte Antworten 11 Text Antworten 66 Multiple Choice Antworten
Fenster schliessen

The maximum vertical load applied to the nose gear is reached

during hard braking in a rejected take-off

when landing at the limit descent velocity

during towing

because of spring-back

Fenster schliessen

Ductile materials:

can withstand much higher stresses than brittle materials

have a linear stress-strain relation almost up to failure

can be deformed permanently without breaking

are often utilized in aircraft construction

Fenster schliessen

In a wing spar at positive load factor, the maximum tension stress is reached

in the upper spar cap

in the lower spar cap

in both spar caps

in the spar web

Fenster schliessen

A static test is successful if the aircraft structure withstands the design limit load

for three seconds, even if permanent deformations result

for three seconds, without permanent deformation

indefinitely, with no permanent deformation

indefinitely, even if permanent deformations result

Fenster schliessen

The interaction of aerodynamic and inertia forces is responsible for

flutter

control reversal

dynamic stability

structural divergence

Fenster schliessen

The wing flutter speed can be increased by

designing the structure so that the flexural centre is as far back as possible

designing the structure so that the flexural centre is as far forward as possible

designing the structure so that the inertia axis is as far back as possible

designing the structure so that the inertia axis is as far forward as possible

Fenster schliessen

The control surface vibrations that can occur at very high mach numbers are known as

buzz

flutter

dynamic response

buffeting

Fenster schliessen

Typical advantages of the differential construction method are

good repairability

good elasticity

low weight

better resistance to corrosion