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The first hypothesis of the failure of the Tacoma Narrows Bridge was resonance (due to the Kármán vortex street). [29] This is because it was thought that the Kármán vortex street frequency (the so-called Strouhal frequency ) was the same as the torsional natural vibration frequency .
The Tacoma Narrows Bridge is a pair of twin suspension bridges that span the Tacoma Narrows strait of Puget Sound in Pierce County, Washington.The bridges connect the city of Tacoma with the Kitsap Peninsula and carry State Route 16 (known as Primary State Highway 14 until 1964) over the strait.
The 1940 collapse of the original Tacoma Narrows Bridge is sometimes characterized in physics textbooks as a classic example of resonance, although this description is misleading. The catastrophic vibrations that destroyed the bridge were not due to simple mechanical resonance, but to a more complicated oscillation between the bridge and winds ...
Like many introductory physics texts, The Mechanical Universe cites the spectacular 1940 collapse of the Tacoma Narrows Bridge as an example of resonance, using footage of the disaster in the "Resonance" episode.
The 1950 Tacoma Narrows Bridge is a suspension bridge in the U.S. state of Washington that carries the westbound lanes of Washington State Route 16 (known as Primary State Highway 14 until 1964) across the Tacoma Narrows strait, between the city of Tacoma and the Kitsap Peninsula.
Mechanical resonance is the tendency of a mechanical system to respond at greater amplitude when the frequency of its oscillations matches the system's natural frequency of vibration (its resonance frequency or resonant frequency) closer than it does other frequencies. It may cause violent swaying motions and potentially catastrophic failure in ...
The magic number is 27 million. It is the number of annual passengers that the Puget Sound is projected to be unable to serve by 2050 if the region’s flight-operation capacity does not increase.
Structural resonance of a suspension bridge induced by winds can lead to its catastrophic collapse. Several early suspension bridges in Europe and United States were destroyed by structural resonance induced by modest winds. The collapse of the Tacoma Narrows Bridge on 7 November 1940 is characterized in physics as a classic example of ...