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If damping ratio is unity then, system is _____________

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in Aircraft Design by (701k points)
If damping ratio is unity then, system is _____________

(a) critically damped

(b) over damped

(c) high lift device

(d) thrust augmented

The question was asked by my college director while I was bunking the class.

The query is from Dynamic Stability in division Stability, Control, and Handling Qualities of Aircraft Design

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The correct answer is (a) critically damped

The best explanation: Damping ratio is defined as damping coefficient divided by critical damping coefficient. If damping ratio is unity then, the damping coefficient is equal to the critical damping coefficient. Hence, for such scenario system is said to be critically damped.

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