Multidisciplinary Analysis for a Civil Aircraft Conceptual Sizing

Ohad Gur, Gali Lazar, Aharon Yaniv (IAL – Israel Aerospace Industries, Ben-Gurion Airport, Israel), Abhishek Burman (NAL – National Aerospace Laboratories, Bangalore, India)
This paper, presented at the Symposium on Applied Aerodynamics and Design of Aerospace Vehicle (SAROD 2011) held on 16-18 November 2011 in Bangalore, India, focuses on the issue how to decide the aircraft configuration sizing parameters without knowing its appearance and performance, and how to decide its appearance and performance without knowing its sizing parameters. Such decisions can only be taken in a multidisciplinary framework consisting of several software modules, which were integrated into a single synergic tool by means of modeFRONTIER.

Designing civil aircrafts is an immense task requiring a multidisciplinary perspective. Trying to establish the size on one hand and the shape and performance of an aircraft on the other is somewhat similar to the chicken-or-the-egg dilemma: which should be done first, as none can be decided without considering the other? For this reason modeFRONTIER was used in order to develop a multidisciplinary design framework, which integrates the existing analysis modules into a single design tool and enables to take into consideration the cross influences of each configuration parameter on the others.