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Statistical Methods for Helicopter Preliminary Design and Sizing

Lier, Max (2011) Statistical Methods for Helicopter Preliminary Design and Sizing. 37th European Rotorcraft Forum (ERF) 2011, 13.-15. Sep. 2011, Gallarate, Italien.

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Abstract

The present paper focuses on the applicability of statistical methods to helicopter design. Firstly the structure and statistical dependencies of a database of 150 existing helicopters are investigated by means of principal component and correlation analysis. The multivariate regression method presented is capable of automated computation of regression functions for a variety of input and output parameters. Additionally a minimum degree of complexity of the regression function is estimated by hypothesis testing. In contrast to most of the approaches used in literature a polynomial regression model was chosen in this paper. The regression result can be improved by using a partial data set, which can be extracted using manually defined criteria or – statistically motivated and unsupervised – by clustering. Subject to the underlying database relative errors of less than 10% for certain design parameters are possible – allowing for a suitable application in helicopter preliminary design.

Item URL in elib:https://elib.dlr.de/70235/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Statistical Methods for Helicopter Preliminary Design and Sizing
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Lier, MaxFT-HSUNSPECIFIED
Date:September 2011
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Helicopter, preliminary design, statistics, PCA, regression
Event Title:37th European Rotorcraft Forum (ERF) 2011
Event Location:Gallarate, Italien
Event Type:international Conference
Event Dates:13.-15. Sep. 2011
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Rotorcraft (old)
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Innovative Rotorcraft (old)
Location: Braunschweig
Institutes and Institutions:Institute of Flight Systems > Rotorcraft
Deposited By: Lier, Max
Deposited On:17 Jan 2012 15:15
Last Modified:17 Jan 2012 15:15

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