A model of horizontal tail plane damage for use in flight dynamics

Kurzfassung

In this paper, an extension of an airplane flight dynamics model structure originally developed for the needs of airplane identification is proposed. The aim of this extension is to separate the contributions of the horizontal tail plane (HTP) from the rest of the model in order to ease the integration of HTP damage in the model. To perform this separation the contribution of the HTP must be identified, which is not possible from flight test data (unless unconventional sensors would be used). It is explained how CFD, wind tunnel or handbook methods can support the separation of the HTP contribution as well as how a simple parameterized HTP damage model can be obtained using the lifting line theory. Data from the literature is used to illustrate the accuracy of the simple damage model. 2D-RANSCFD results are used to illustrate the accuracy of various handbook methods that are suggested for the modelling of the zero lift angle of attack of the HTP.