Акустика авиационная. Термины и определения

Aviation acoustics. Terms and definitions

1. Aviation noise
3. Aeroacoustics
4. Aerodynamic noise
5. Pseudosound
6. Fan noise
7. Compressor noise
8. Turbine noise
9. 10. Jet noise
11. Shear noise of a jet Self noise of a jet
Propeller noise
14. Helicopter rotor noise
Rotor noise
15. Thrust reverse noise

16. Noise of an auxiliary power unit
Noise of APU
17. Blade slap
18. Boundary layer noise
19. Airframe noise
20. Acoustic performance of gas turbine engine
21. Blade passing frequency
22. Harmonic of blade passing frequency ,

29. Total noise exposure level
30. Equivalent continuous perceived noise level
Aircraft noise certification
32. Aircraft noise certificate
33. Derived version of an aircraft
34. Aircraft noise certification reference procedures
35. Equivalent noise certification procedures
36. Aircraft noise certification reference atmospheric conditions
37. Aircraft noise certification refe-

Approach angle correction
48. Aircraft performance correction

Acoustic mass correction 45
Acoustic performance of gas turbine engine 20
Aeroacoustics 3
Aerodrome noise control system 53
Aerodrome noise suppressor 65
Aerodynamic noise 4
Aircraft acoustic characteristic 50
Aircraft noise abatement operating procedures 59
Aircraft noise certificate 32
Aircraft noise certification 31
Aircraft noise certification reference atmospheric attenuation 37
Aircraft noise certification reference atmospheric conditions 36
Aircraft noise certification reference procedures 34
Aircraft noise control point 54
Aircraft performance correction . - 43
Airframe noise 19
Airport noise charge 55
Approach angle correction ' 47
Approach reference noise measurements point 40
Aviation acoustics 1
Aviation noise 2
Bilade passing frequency 21
Blade slap 17
Boundary layer noise 18
Compressor noise 7
Control noise measurement inside an aircraft 58
Core engine noise 9
Corrugated nozzle 70
Derived version of an aircraft 33
Duration correction 44
Duration time 43
Effective perceived noise level 28
Environment aircraft noise 49
Equivalent continuous perceived noise level 30
Equivalent noise certification procedures ' 35
Fan noise 6
Flyover reference noise measurement point ' 39
Focusing area of sonic boom 87
Function - Harmonic of blade passing frequency 22
Helicopter rotor noise 14
Incident pressure rise 81
Inverted coannular nozzle 72
Jet noise 10
Lateral reference noise measurement point 38
Lobe nozzle 69
Maximum perceived noisiness 23
Maximum tone corrected perceived noise level 27
Mechanical jet noise suppressor 66
Minumum noise route 60-
Multisegment approach 62
Multitube nozzle 71
Noise exposure forecast index > 51
Noise of APU 16
Noise of an auxiliary power unit 16-
Noise (path duration correction 45
Noise preferential runway 61
Nominal ground conditions of sonic boom measurements 88
Nominal meteorologic conditions of sonic boom measurements 89
Nominal sonic boom . 74
Noy 25
Perseived noise level 26
Positive phase duration of sonic boom signature 84
Pressure rise time of sonic boom 83
Pressure signature of sonic boom 79
Pressure wave of sonic boom 75
Propeller noise 13
Pseudosound 5
Rotor noise 14
Self noise of a jet ■? 12
Shear noise of a jet 11
Sonic boom 73
Sonic boom focusing 86
Sonic boom overpressure 76
Sound propagation distance from an aircraft 41
Sound suppression nozzle 68
Synchronization of propellers 63-
Syniphasing of propellers 64
Thrust reverse noise 15
Time duration of aviation noise 52
Tone correction 42
Total duration of sonic boom signature 82
Total noise exposure level 29-
Total perceived noisiness 24
Turbine noise 8
Turbofan engine flow mixer 67
Type noise measurement inside an aircraft 57
Wave-N 80-