Fluid–structure interactions also occur in moving containers, where liquid oscillations due to the container motion impose substantial magnitudes of forces and moments to the container structure that affect the stability of the container transport system in a highly adverse manner. The lubricant flows between the contacting solid components and causes elastic deformation in them during this process. The interaction between tribological machine components, such as bearings and gears, and lubricant is also an example of FSI. The act of " blowing a raspberry" is another such example. The dynamic of reed valves used in two strokes engines and compressors is governed by FSI. A reed actually produces sound because the system of equations governing its dynamics has oscillatory solutions. Aircraft wings and turbine blades can break due to FSI oscillations. Tacoma Narrows Bridge (1940), the first Tacoma Narrows Bridge, is probably one of the most infamous examples of large-scale failure. Failing to consider the effects of oscillatory interactions can be catastrophic, especially in structures comprising materials susceptible to fatigue. automobile, aircraft, spacecraft, engines and bridges. Propagation of a pressure wave through an incompressible fluid in a flexible tube Examples įluid–structure interactions are a crucial consideration in the design of many engineering systems, e.g.
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