Non-linear system identification and fault diagnosis using a new GUI interpretation tool
There are two major contributions which are described in this paper. Firstly, a new graphical user interfaces (GUI) interpretation tool for the non-linear frequency response functions (FRF) is proposed, The tool is developed by pv-wave package to provide better ways and user friendly of displaying, interpreting and analysing of non-linear systems with significant non-linear effects. Secondly, the application of this identification tool for fault detection, identifying in the civil engineering. To demonstrate the improved visualisation and interpretation of the multi-dimensional non-linear FRF and the application of the non-linear auto-regressive moving average model with exogenous input (NARMAX) methodology, two engineering applications have studied including a non-linear oscillator and fault diagnosis in civil engineering structures. The results obtained have shown that the interpretation of the higher-order FRF has been comprehensively studied and non-linear effects have been related back to the physical models of the systems. (C) 2001 IMACS. Published by Elsevier Science B.V. All rights reserved.
identification graphical user interfaces frequency response functions narmax model