Radiaton pressure on inserts with the given scattering amplitude in the field of primary plane waves

General expressions for radiation pressure forces on any inserts in the field of plane progressive and plane standing waves in an ideal fluid were obtained. Inserts are characterized by scattering amplitude. The obtained general expressions were detailed for a number of interesting special cases. It was shown, that the earlier formulae were a special case of these expressions. Necessity for the account of the real and imaginary scattering amplitude components was shown. Calculations for specific cases are given.