Аннотация:
Using the method of integral coefficients obtained by a simple algebraic expression to
determine the natural frequency of fluid with free surface in the capacity of complex
shape (between coaxial cylinders). Necessary empirical coefficient determined
experimentally. Deviation calculated by the formula obtained values of the natural
frequency of the experimental values is less than 4% over this range diameter ratio,
due consideration to the capacity of the cylinders. This error is acceptable, not only for
assessment but also for engineering calculations.