Mechanical Engineering

What is surge in springs?

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January 02, 2009 12:21PM

When there are impact loads on the springs, the stress propagates along the spring wire. The end coil of the spring in contact with the applied load takes up whole of the deflection and then it transmits a large part of its deflection to the adjacent coils. This wave of compression travels along the spring indefinitely. Resonance will occur depending upon time traveled.This results in very large deflections and correspondingly very high stresses. Under these conditions, it is just possible that the spring may fail. This phenomenon is called surge.