Description: for a proportional element, the quotient of the change in the output variable and the associated input variable; Name: proportional coefficient
Description: proportional element, the quotient of the variation of the output variable to the corresponding variation of the input variable; Name: proportional action coefficient
Description: Rotor resonant frequency calculated assuming that the rotor is supported only at its bearings and that the bearings are of infinite stiffness ; Name: Dry critical speed