An ℋ_∞full information approach for the feedforward controller design of a large blended wing body flexible aircraft

Abstract

An H ∞ full information feedforward design approach for longitudinal motion pre¦lter design of a large §exible blended wing body (BWB) aircraft is presented. An existing onset is extended such that speci¦cations concerning command tracking, limited control energy, and manoeuvre load reduction can be addressed simultaneously. Therefore, the utilized design architecture is provided and manual tuning aspects are considered. In order to increase controller tuning e©ciency, an automated tuning process based on several optimization criteria is proposed. Moreover, two design methodologies for the parameter-varying design case are investigated. The obtained controller is validated on a high-order nonlinear model, indicating the high potential of the presented approach for §exible aircraft control.

Dynamic Load Alleviation in Wake Vortex Encounters

“…24,29,30 For active load alleviation systems to be effective on such platforms, they need to incorporate the effect of wing deformations on the vehicle stability characteristics. 28 39 proposed a H ∞ full information approach.…”

Design of a 450-passenger blended wing body aircraft for active control investigations

“…Wildschek et al [23]. The design of a preElter for longitudinal motion control of a large flexible BWB aircraft is presented in Westermayer et al [24]. The final control surface layout will be published in subsequent publications of the ACFA project.…”