Which mechanical effect amplified risk during structural oscillations of the Tacoma Narrows bridge?

💡 Explanation

Aeroelastic flutter initiated oscillations on the Tacoma Narrows bridge due to wind altering the aerodynamic profile, because structural feedback amplified small initial disturbances to become uncontrolled self-exciting oscillations; therefore bridge collapsed, rather than experiencing simple resonance vibration.

• Which maneuver risks keel damage in Viking Drakkar longships during sharp turns?
• Which destructive outcome occurred when medieval stone catapults exceeded design thresholds?
• Which outcome results when freeze-thaw cycles act upon a sandstone structure incorporating pietra dura?
• Which instability increased as Roman arch spandrel infill decreased?
• Which risk increased as Incan terrace walls exceeded critical heights during intensive maize cultivation?
• Which risk increased if Incan masons violated 'ashlar' construction principles when building high retaining walls for terracing?