Simplified Analysis for Multiple Input Systems: A Toolbox Study Illustrated on F-16 Measurements

• Published in: Vibration
• Main Authors: Péter Zoltán Csurcsia, Bart Peeters, Johan Schoukens, Tim De Troyer
• Format: Text
• Language: English
• Published: Multidisciplinary Digital Publishing Institute 2020
• Subjects: toolbox study; MIMO systems; nonparametric estimation; nonlinear system identification; user-friendly methods; automatic processing; transient elimination; sami
• Online Access: https://doi.org/10.3390/vibration3020007

This paper introduces a nonparametric, nonlinear system identification toolbox called SAMI (simplified analysis for multiple input systems) developed for industrial measurements of vibro-acoustic systems with multiple inputs. It addresses the questions related to the user-friendly (semi-)automatic processing of multiple-input, multiple-output measurements with respect to the design of an experiment and the analysis of the measured data. When the proposed toolbox is used, with minimal user interaction, it is easily possible (a) to decide whether the underlying system is linear or not, (b) to decide whether the linear framework is still adequate to be used, and (c) to tell an inexperienced user how much can be gained using an advanced nonlinear framework. The toolbox is illustrated on openly accessible F-16 ground vibration testing measurements.