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On calculating the natural frequency of the system, Barken did not take into account of __________

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in Geotechnical Engineering II by (93.8k points)
On calculating the natural frequency of the system, Barken did not take into account of __________

(a) Contact area

(b) Frequency ratio

(c) Mass of the vibrating soil

(d) Mass of machine

This question was posed to me in exam.

This is a very interesting question from Machine Foundations in chapter Machine Foundations of Geotechnical Engineering II

1 Answer

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by (243k points)
Correct choice is (c) Mass of the vibrating soil

The explanation: The formula suggested by Barken for natural frequency does not take into account of the mass of soil vibrating with the foundations.

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