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When the relation between the controlling force (FC) and radius of rotation (r) for a spring controlled governor is FC = a.r + b, then the governor will be

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in Machine Dynamics by (34.3k points)
When the relation between the controlling force (FC) and radius of rotation (r) for a spring controlled governor is FC = a.r + b, then the governor will be

(a) stable

(b) unstable

(c) isochronous

(d) none of the mentioned

I had been asked this question in homework.

The above asked question is from Governors topic in division Governors of Machine Dynamics

1 Answer

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by (38.6k points)
The correct option is (b) unstable

Explanation: For the governor to be stable, the controlling force (FC) must increase as the radius of rotation (r) increases, i.e. FC / r must increase as r increases.

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