Analytical Model For Approximately Calculating Of The Second Frequency Of Cross Vibrations For Complex Shape Barrel Of The Small ARM

The report scrutinizes an analytical model for approximately calculating of the second natural frequency of cross vibrations for complex shape barrel of the small arm. The model is based on known formulas, used for calculating on the second natural frequency of cross vibrations for cylindrical barrels. In suggested analytical model a coefficient, that gives an influence on form of the complex barrel is added. An experimental investigation is made in order to prove the workability of the analytical method.