Influence of the Perception Constraint, Observer Position, and Broadband Self-Noise on Low-Fidelity UAM Vehicle Perception-Influenced-Design (PID) OptimizationThis paper will present an approach in design optimization of a proprotor in a forward flight condition with several acoustic objective functions that simulate community response. An adjoint-capable blade element momentum theory (BEMT), implemented in CCBlade.jl, will be used to compute the blade forces and inflow properties required to compute tonal and broadband noise using the second-generation Aircraft NOise Prediction Program (ANOPP2). The influence of broadband noise, observer location, and choice of perception constraint on optimized values of rotation rate, chord distribution, and twist angle will be shown. It is determined that broadband self-noise is an influential source noise mechanism in the design optimization when frequency weighting is used to predict the noise at an out-of-plane observer position.
Document ID
20230004003
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Leonard V Lopes (Langley Research Center Hampton, Virginia, United States)
Daniel J Ingraham (Glenn Research Center Cleveland, Ohio, United States)
Date Acquired
March 26, 2023
Subject Category
Acoustics
Meeting Information
Meeting: Vertical Flight Society's 79th Annual Forum & Technology Display