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Foundation design philosophy for rotating equipment

Mar 23, 2021

FOUNDATIONS FOR DYNAMIC EQUIPMENT 351.3R-3 f i1, f i2 = dimensionless stiffness and damping functions for the i-th direction, piles f m = frequency of motion, Hz f n = system natural frequency (cycles per second) f o = operating speed, rpm G = dynamic shear modulus of the soil G ave = the average value of shear modulus of the soil over the pile length G c = the average

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