## Guide for the Calculation of Sound Processes: (NavShips 250-940) |

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### Contents

Introduction | 1 |

The Sound Field at Large Distances from the Radiator | 7 |

The Sound Field in the Neighborhood of the Radiator | 87 |

Copyright | |

4 other sections not shown

### Common terms and phrases

according approximation bearing plane Bessel functions calculation Cber circular group circular line circular piston membrane coincide compensated group components Concentrated radiation condensation factor constant sound pressure corresponding curves of constant directivity factor Elektr equation example follows frequency given individual radiators integral Integral Sine magnitude maximum McLachlan membrane radius middle axis middle point neighborhood number pure number obtain phase Phys point lies point radiators polar coordinates pure number pure radiating spherical cap radiating surface radiation factor radiators arranged receiving arrangement rectangular piston membrane reflection factor relationship relative sound pressure represented in Figure rigid sphere rigid wall side lobes simple small compared sound field Sound Impedance sound pressure amplitude sound radiation sound source sound velocity spherical harmonics spherical radiator Struve function symmetry plane Techn thickly occupied total radiated unconcentrated values velocity amplitude velocity potential velocity-amplitude wave length zero point