01668364

Monograph

http://www.trb.org/Main/Blurbs/177515.aspx

This document provides an overview of the research performed under Airport Cooperative Research Program (ACRP) Project 02-66 “Commercial Space Operations Noise and Sonic Boom Modeling and Analysis”. The purpose of this project was to develop rocket noise and sonic boom models for commercial space operations that are compatible with, or can be integrated with the FAA’s Aviation Environmental Design Tool (AEDT). AEDT is a software system that models aircraft fuel consumption, emissions, noise, and air quality consequences. Further objectives of this project were to develop a database of existing vehicle/engine data for commercial space launch operations, develop a model validation plan that can be used to check the accuracy of both models compared to noise measurements of actual space operations, and develop approval process guidance for commercial space noise studies. To meet the objectives of this research, a review was conducted of the of the rocket noise model (RUMBLE) and sonic boom model (PCBoom) to assess the current state of these model’s databases, modeling capabilities, and functionality/usability in order to identify changes required to model current spacecraft operations and for the possible future integration of these models into AEDT. Improvements made to RUMBLE include: development of a database of current spacecraft airframe and engine/motor characteristics; code optimization of some of the computationally intensive parts of the program to significantly decrease run-time; strengthening the model’s compatibility with AEDT including program workflow, model input/output, and database management; and development of a graphic user interface and user guide. A summary of improvements made to PCBoom include: development of a database of vehicle input/sonic boom source characteristics for current spacecraft, increasing the number of noise metrics output for compatibility with AEDT, improved instructions for trajectory post-processing, new noise grid generation capability for AEDT and NMPlot, and a user guide. A model validation plan was developed to specify the data collection and test requirements needed to validate the rocket noise and sonic boom models. To facilitate review and approval of commercial space environmental noise studies, approval process guidelines were developed that the FAA Office of Environment and Energy (AEE) can use to develop an official approval process to conduct reviews of modeling methodology and input data used in the RUMBLE and PCBoom models. Additional improvements to RUMBLE and PCBoom, to facilitate public use and the integration of these models into AEDT, also are presented in this report.

ACRP Project 02-66

English

91p

2017-5

ACRP Web-Only Document

9780309475433

Contractor's Final Report

Web

Figures; References; Tables

Commercial space transportation; Mathematical models; Methodology; Noise; Software; Sonic boom; Sound level; Sound transmission; Spacecraft

Aviation Environmental Design Tool

Aviation; Environment

TRIS, TRB, ATRI

May 2 2018 9:44AM