Static stability, definition

Both of these cases illustrate the general definition of the static stability of a physical system ... 

In general, the coefficients of variation decrease with smaller values of 02. This is definitely desirable since it indicates that for higher expected profits there is diminishing uncertainty in the model, thus signifying model and solution robustness. It is also observed that for values of 02 approximately greater than or equal to 2, the coefficient of variation remain at a static value of 0.5237, thus indicating overall stability and a minimal degree of uncertainty in the model. 

The characteristic motion of the journal center on stability threshold Is a stationary whirl on a closed elliptical crbit around the static equilibrium position of the journal center, with a definite whirl ratio expressing the ratio of whirl frequency to running frequency. In order to be able to predict the threshold speed, the eight dynamic coefficients of the oil film corresponding to such a characteristic motion should first be... 

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