GATE_AE_2027_MOCK_03_Q34
GATE 2027 Aerospace Engineering All-India Master Mock 03 (Flight Dynamics, Controls & Space Trajectories)
MCQ · 1 Mark
Aerospace Structures • Structural Dynamics & Aeroelasticity • Divergence & Control Surface Reversal
Static aeroelastic divergence occurs when:
(A) Aerodynamic torsional moments overcome the elastic restoring moment of the wing structure
(B) Structural damping becomes infinitely large
(C) Control surface hinge moments drop to zero
(D) Mach number reaches exactly 1.0
Answer Key:
A
Step-by-Step Verified Solution
### Solution: Divergence is a static instability where aerodynamic lift generates a twisting moment that increases faster with dynamic pressure than structural stiffness can resist. Correct: A.