Validation of helicopter noise prediction system with flight data

Mrunali Botre, Kenneth Steven Brentner, Joseph Francis Horn, Daniel Wachspress

Research output: Contribution to conferencePaper

2 Citations (Scopus)

Abstract

A comprehensive noise prediction system is required to predict helicopter noise and assess potential noise mitigation strategies. It is necessary to validate and understand the limitations of the noise prediction system before it can be used to develop noise abatement procedures. Here, the validation is carried out by direct comparison with the flight test data. This paper gives a brief introduction to the noise prediction system, processing of the flight test data, and development of the different helicopter models with parametric sensitivity. The validation process is carried out by comparing the sound exposure level (SEL) noise contours on the ground plane of the acoustic flight test data with that predicted by the noise prediction system. The examples considered are: level flight; descent flight; level turn maneuver in left and right direction; level, decelerating turn maneuver; and a descending turn maneuver. This range of flight conditions was necessary to analyze the prediction system and understand its capabilities and deficiencies for future work. Overall the predicted noise levels were able to match the trends and levels within a few SELdBA of that measured during the flight test.

Original languageEnglish (US)
StatePublished - Jan 1 2019
EventVertical Flight Society's 75th Annual Forum and Technology Display - Philadelphia, United States
Duration: May 13 2019May 16 2019

Conference

ConferenceVertical Flight Society's 75th Annual Forum and Technology Display
CountryUnited States
CityPhiladelphia
Period5/13/195/16/19

Fingerprint

Helicopters
Noise abatement
Acoustic noise
Acoustics
Acoustic waves
Processing

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Control and Systems Engineering

Cite this

Botre, M., Brentner, K. S., Horn, J. F., & Wachspress, D. (2019). Validation of helicopter noise prediction system with flight data. Paper presented at Vertical Flight Society's 75th Annual Forum and Technology Display, Philadelphia, United States.
Botre, Mrunali ; Brentner, Kenneth Steven ; Horn, Joseph Francis ; Wachspress, Daniel. / Validation of helicopter noise prediction system with flight data. Paper presented at Vertical Flight Society's 75th Annual Forum and Technology Display, Philadelphia, United States.
@conference{98adab09805c40b3b396d609d3dbe07d,
title = "Validation of helicopter noise prediction system with flight data",
abstract = "A comprehensive noise prediction system is required to predict helicopter noise and assess potential noise mitigation strategies. It is necessary to validate and understand the limitations of the noise prediction system before it can be used to develop noise abatement procedures. Here, the validation is carried out by direct comparison with the flight test data. This paper gives a brief introduction to the noise prediction system, processing of the flight test data, and development of the different helicopter models with parametric sensitivity. The validation process is carried out by comparing the sound exposure level (SEL) noise contours on the ground plane of the acoustic flight test data with that predicted by the noise prediction system. The examples considered are: level flight; descent flight; level turn maneuver in left and right direction; level, decelerating turn maneuver; and a descending turn maneuver. This range of flight conditions was necessary to analyze the prediction system and understand its capabilities and deficiencies for future work. Overall the predicted noise levels were able to match the trends and levels within a few SELdBA of that measured during the flight test.",
author = "Mrunali Botre and Brentner, {Kenneth Steven} and Horn, {Joseph Francis} and Daniel Wachspress",
year = "2019",
month = "1",
day = "1",
language = "English (US)",
note = "Vertical Flight Society's 75th Annual Forum and Technology Display ; Conference date: 13-05-2019 Through 16-05-2019",

}

Botre, M, Brentner, KS, Horn, JF & Wachspress, D 2019, 'Validation of helicopter noise prediction system with flight data' Paper presented at Vertical Flight Society's 75th Annual Forum and Technology Display, Philadelphia, United States, 5/13/19 - 5/16/19, .

Validation of helicopter noise prediction system with flight data. / Botre, Mrunali; Brentner, Kenneth Steven; Horn, Joseph Francis; Wachspress, Daniel.

2019. Paper presented at Vertical Flight Society's 75th Annual Forum and Technology Display, Philadelphia, United States.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Validation of helicopter noise prediction system with flight data

AU - Botre, Mrunali

AU - Brentner, Kenneth Steven

AU - Horn, Joseph Francis

AU - Wachspress, Daniel

PY - 2019/1/1

Y1 - 2019/1/1

N2 - A comprehensive noise prediction system is required to predict helicopter noise and assess potential noise mitigation strategies. It is necessary to validate and understand the limitations of the noise prediction system before it can be used to develop noise abatement procedures. Here, the validation is carried out by direct comparison with the flight test data. This paper gives a brief introduction to the noise prediction system, processing of the flight test data, and development of the different helicopter models with parametric sensitivity. The validation process is carried out by comparing the sound exposure level (SEL) noise contours on the ground plane of the acoustic flight test data with that predicted by the noise prediction system. The examples considered are: level flight; descent flight; level turn maneuver in left and right direction; level, decelerating turn maneuver; and a descending turn maneuver. This range of flight conditions was necessary to analyze the prediction system and understand its capabilities and deficiencies for future work. Overall the predicted noise levels were able to match the trends and levels within a few SELdBA of that measured during the flight test.

AB - A comprehensive noise prediction system is required to predict helicopter noise and assess potential noise mitigation strategies. It is necessary to validate and understand the limitations of the noise prediction system before it can be used to develop noise abatement procedures. Here, the validation is carried out by direct comparison with the flight test data. This paper gives a brief introduction to the noise prediction system, processing of the flight test data, and development of the different helicopter models with parametric sensitivity. The validation process is carried out by comparing the sound exposure level (SEL) noise contours on the ground plane of the acoustic flight test data with that predicted by the noise prediction system. The examples considered are: level flight; descent flight; level turn maneuver in left and right direction; level, decelerating turn maneuver; and a descending turn maneuver. This range of flight conditions was necessary to analyze the prediction system and understand its capabilities and deficiencies for future work. Overall the predicted noise levels were able to match the trends and levels within a few SELdBA of that measured during the flight test.

UR - http://www.scopus.com/inward/record.url?scp=85069516452&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85069516452&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:85069516452

ER -

Botre M, Brentner KS, Horn JF, Wachspress D. Validation of helicopter noise prediction system with flight data. 2019. Paper presented at Vertical Flight Society's 75th Annual Forum and Technology Display, Philadelphia, United States.