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The paper describes a mixed approach to the fault isolation on a winding machine. The first step is the generation of residuals, i.e. signals containing information about the faults. Based on a linear model of the winding machine, an observer based residual generation has been designed, however, measurements of the nonlinear system have been used for the calculation of the residuals. The second step...
The pap or considors a proceduro for the fault isolation in linear systems. The proposed approach is based on the estimation of a reduced number of parameters of the original system. The selection of the parameters to be estimated follows from the evaluation of structured residuals. A reduction of the required input richness in the parameter estimation approach is reached while the fault isolability...
This paper describes the design of an estimator for wind gusts acting on an airplane during flight. The linearised longitudinal model of the airplane for steady state rectilinear flight is presented. It is shown, how wind gusts, which are considered to be unknown inputs to the airplane, can be estimated in general, if the unknown inputs appear in the output equation. The unknown inputs are removed...
In this paper the problem of fault isolation in non linear systems is considered. Faults are formulated as parameter changes and a novel definition of fault detent ability is introduced. This connects a fault with its effect on the output of the system under consideration. Based on this definition, a practical way to test the fault detectability is introduced. In this context, a general result about...
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