Читать книгу Vibroacoustic Simulation - Alexander Peiffer - Страница 68

The time averaged radiated intensity is

(2.79)

The total radiated power can now be evaluated from Equation (2.54) and the integration surface 4πr2

(2.80)

The mean square pressure can be derived from (2.74) and expressed by the intensity using (2.45)

(2.81)

Replacing the intensity in (2.81) gives the rms pressure in the spherical sound field due to power

(2.82)