... rate leakage fault diagnosis is presented to classify the pump's condition as either healthy or moderately faulty or severely faulty. Figure 13 shows the frequency spectra of the pump outlet pressure for different levels of leakage fault severity in a single cylinder. In each spectrum, the peaks...

... of 97.59%, thus showing that the present methodology is competitive. e-mail:  andre.dias@ifsp.edu.br 30 06 2020 30 09 2020 04 11 2020 fault diagnosis condition monitoring PROFINET PROFIdrive support vector machine rotating machines The use of electric motors...

... of ball bearing fault diagnosis based on the wavelet packet is to take advantage of its bandpass filter characteristics, and to decompose the signals using appropriate wavelet functions so as to obtain an appropriate resonance frequency band. Then, by means of envelope demodulation, low frequency envelope...

..., 2014; published online April 10, 2014. Assoc. Editor: Shankar Coimbatore Subramanian. 02 09 2012 10 01 2014 This paper proposes a novel fault diagnosis approach for the satellite attitude control system with flywheel faults. The key contributions include fault estimation by sparse...

...; published online May 13, 2013. Assoc. Editor: Won-jong Kim. 20 02 2012 25 12 2012 A challenging problem on observer-based, integrated fault diagnosis and fault-tolerant control for linear systems subject to actuator faults and control input constraints is studied in this paper...

...Rongrong Wang; Junmin Wang This paper presents an in-wheel motor fault diagnosis and fault-tolerant control method for four-wheel independently actuated (4WIA) electric vehicles. The 4WIA electric vehicle is one of the promising architectures for electric vehicles. While such a vehicle architecture...

... ), pp. 827 – 836 . 10.1016/j.conengprac.2003.09.011 9 Frank , P. M. , 1990 , “ Fault Diagnosis in Dynamic Systems Using Analytical and Knowledge Based Redundancy: A Survey and Some New Results ,” Automatica , 26 ( 3 ), pp. 459 – 474 . 10.1016/0005-1098(90)90018-D 10 Park , J...

... based on the information retrieved from the equivalent output injection signals. The proposed approach is tested on a nonlinear model of single link flexible joint robot system. 23 06 2008 18 01 2011 24 08 2011 24 08 2011 cascade control fault diagnosis flexible...

... ensures that the TWC is functioning at an acceptable efficiency level keeping emissions within mandated requirements. automobiles catalysts condition monitoring fault diagnosis internal combustion engines least squares approximations 24 11 2008 19 02 2011 05 08 2011 05...

...P. K. Kankar; Satish C. Sharma; S. P. Harsha In this paper, fault diagnosis of high speed rolling element bearings due to localized defects using response surface method has been done. The localized defects as spalls on outer race, on inner race, and on rolling elements are considered...

... of the restriction areas in the EGR system. 12 06 2008 12 03 2009 17 12 2009 17 12 2009 diesel engines fault diagnosis flow simulation least squares approximations orifices (mechanical) parameter estimation recursive estimation valves Modern engine on-board...

... with efficient local model parameter estimation into an integrated framework for modeling and identification of general nonlinear dynamic systems. The identified model then serves as a foundation for building an effective anomaly detection and fault diagnosis system. By utilizing the information about system...

... condition monitoring cooling diesel engines engine cylinders exhaust systems fault diagnosis flaw detection fuel systems intake systems (machines) machinery production industries manifolds probability regression analysis torque An important goal for diesel engine manufacturers...

... fault diagnosis feedback finite element analysis flaw detection interpolation magnetic flux shapes (structures) 2009 American Society of Mechanical Engineers ...

... 2005 08 11 2007 01 08 2008 adaptive Kalman filters fault diagnosis neural nets parameter estimation variable structure systems Parameter estimation Variable structure systems Kalman filter Consider an increasingly important application of parameter estimation...

.... A component fault detection and isolation scheme based on these observers is proposed. The effectiveness of the observer and the fault diagnosis scheme is shown by applying them for component fault diagnosis of an electrohydraulic actuator. The UIOs have become a multipurpose diagnosis tool in the field...

.... , Frank , P. M. , and Clark , R. N. , 1989 , Fault Diagnosis in Dynamic Systems, Theory and Applications , Prentice-Hall , Englewood Cliffs, NJ . Gertler , J. , 1988 , “ Survey of Model Based Fault Detection and Isolation in Complex Plants ,” IEEE Control Syst. Mag. 0272-1708...

...F. Caccavale; F. Pierri; L. Villani This paper deals with the problem of fault diagnosis (FD) for a class of nonlinear systems. The scheme is based on a discrete-time diagnostic observer that computes a prediction of the system’s state. Compensation of the fault effect on the state prediction...

...Wen Chen; Mehrdad Saif This paper presents a novel fault diagnosis approach in satellite systems for identifying time-varying thruster faults. To overcome the difficulty in identifying time-varying thruster faults by adaptive observers, an iterative learning observer (ILO) is designed to achieve...

.... 28 04 2004 24 07 2006 diesel engines fault diagnosis entropy In modern mechanical systems, fault detection and diagnostic systems serve a vital role in maintaining and extending operational lifespan. In the diesel engine industry, diagnostic systems may be used to detect minor...