As components of an automobile chassis, struts can be passive braces to reinforce the chassis and/or body, or active components of the suspension.
The Tacoma Narrows Bridge collapses due to high winds on this day in 1940. Fortunately, only a dog was killed. The Tacoma Narrows Bridge was built in Washington during the 1930s and opened to traffic on July 1, 1940.It spanned the Puget Sound from Gig Harbor to Tacoma, which is 40 miles south of Seattle.The channel is about a mile wide where the bridge crossed the sound.he Tacoma Narrows Bridge collapses due to high winds on this day in 1940. Fortunately, only a dog was killed. The Tacoma Narrows Bridge was built in Washington during the 1930s and opened to traffic on July 1, 1940.
Film of the failure shows how strong winds caused the bridge to start to oscillate and twist. When wind speeds hit the right speed (42 Mph) the oscillation was magnified due to resonant frequency effects and after 1 hour of incredibly violent twisting the central span of the bridge collapsed.