Representation and identification of a nonlinear aeroelastic pitch-plunge system as a model of the Nonlinear AutoRegressive, Moving Average eXogenous (NARMAX) class is considered. A nonlinear difference equation describing this aircraft model is derived theoretically and shown to be of the NARMAX form. Identification methods for NARMAX models are applied to aeroelastic dynamics and its properti...

In this work, incremental sheet forming of a complicated shape is investigated experimentally. Two point incremental forming with negative and positive dies are employed for manufacturing of a complicated shape with positive and negative truncated cones. The material is aluminum alloy 3105 with a thickness of 1 mm. The effects of process parameters such as sequence of positive and negative form...

1 Introduction This documents presents results attained by Poznan University of Technology in experiments on Non-linear depth representation [1] as a part of core experiment CE defined in [2]. 2 Description of the tool M22697 describes a normative tool named non-linear depth representation. The depth is internally represented in such a way that the closer objects are represented more accurately...