How Do You Optimize Damping Constant for Maximum Resonance?

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To optimize the damping constant for maximum resonance in a damped spring system, a zero damping constant is theoretically ideal, as it allows for the highest response without energy loss. However, this approach leads to perpetual oscillation in the absence of friction, which is impractical in real-world scenarios. While simple harmonic motion is accurately described without damping, practical applications necessitate consideration of damping effects. The discussion highlights that while zero damping maximizes response, it is not feasible for actual systems. Ultimately, balancing theoretical ideals with practical limitations is essential in optimizing damping for resonance.
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Given a system where a damped spring has natural frequency equal to the frequency of the input oscillations, how do I choose a damping constant in order to maximize the response of the spring?

Are there any issues with choosing a zero damping constant? (as this would surely provide the maximum response even if it does mean it oscillates forever in the absence of friction)

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The "maximum" response is generally with 0 damping. I see no problem with using that.
 
Theoretically, there's no issue with choosing a zero damping constant. Simple harmonic motion is described by a spring with no damping constant. Of course, for real world applications, it's always a factor.
 
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