Incremental Bond Graphs

Borutzky, Wolfgang

doi:10.1007/978-1-4419-9368-7_4

Cited by 21 publications

(34 citation statements)

References 19 publications

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“…The bond graph representation of (2) may be done by defining the variations as either in additive or multiplicative errors (Borutzky, 2011;Samantaray and Ould Bouamama, 2008;Djeziri et al, 2006;SiéKam and Dauphin-Tanguy, 2005). Consequently, uncertain parts appear as modulated sources (internal feedback loop) on the nominal bond graph (LFT model in Fig.…”

Section: Fig 1 Standard Interconnection or Internal Feedback Loop Modelmentioning

confidence: 99%

“…In this paper, a decision procedure, C = (Rd1, Rd2,..Rdn) is used, whereby each residual, Rdi, is tested against a threshold to generate the coherence vector, C. Instead of constant bilateral threshold, an adaptive threshold (Borutzky, 2011;Samantaray and Ould Bouamama, 2008;Djeziri et al, 2006;SiéKam and Dauphin-Tanguy, 2005), defined by…”

Section: Analytical Redundancy Relationsmentioning

confidence: 99%

“…Bond graph modeling (Karnopp et al, 2006;Mukherjee et al, 2006;Borutzky, 2010;and Borutzky, 2011), being a unified multi-energy domain modeling method, is especially suitable for developing analytical models of most engineering systems. Bond graph modeling has also been used in the past for different Fault Detection and Isolation (FDI) approaches (Ould Bouamama et al, 2003;Samantaray et al, 2004;Ould Bouamama et al, 2005;Samantaray et al, 2006;Medjaher et al, 2006;Samantaray and Ould Bouamama, 2008;Ghoshal and Samanta, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…The trend of responses as a result of imposing a fault to the physical set-up instrumented with sensors was observed and validated with model simulation. Then adaptive thresholds were determined using the bond graph model in Linear Fractional Transformation (LFT) form (Borutzky, 2011;Samantaray and Ould Bouamama, 2008;Djeziri et al, 2006;SiéKam and Dauphin-Tanguy, 2005) and those thresholds are used to achieve robustness in FDI viz-a-viz parameter uncertainty. The robustness is particularly required with respect to parameter and measurement uncertainties so that misdetections and false alarms are both minimized.…”

Section: Introductionmentioning

confidence: 99%

“…In this work, we use the methodology given in (Borutzky, 2011;Samantaray and Ould Bouamama, 2008;Djeziri et al, 2006;SiéKam and Dauphin-Tanguy, 2005) to develop adaptive thresholds for it by considering various uncertainties in the model of hydrostatic system. Two types of models for designing adaptive threshold to achieve robustness are used.…”

Section: Introductionmentioning

confidence: 99%

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Single fault isolation of a Hydrostatic Transmission System: Simulation and Experimentation

Samanta¹,

Ghoshal²

2013

JMSIC

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In this article, different methodologies in the area of system identification, parametric fault isolation, robustness in fault diagnosis have been surveyed and applied to a pedagogical HydroStatic Transmission (HST) system. A Bond Graph (BG) model for the system has been developed and then nonlinear regression analysis was done on the state equations, obtained from that model, to estimate the unknown parameters as a part of system identification. The test bench was designed to introduce faults in different components for the purpose of experimental validation of Fault Detection and Isolation (FDI). The model based single fault isolation was done by using structural analysis of some constraint relations, called Analytical Redundancy Relations (ARR), the numerical evaluation of which are called residuals. The robustness in fault isolation was addressed through Linear Fractional Transformation (LFT) approach to make residuals insensitive to uncertainty of system parameters, but sensitive to fault.

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Section: Fig 1 Standard Interconnection or Internal Feedback Loop Modelmentioning

confidence: 99%

Section: Analytical Redundancy Relationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Single fault isolation of a Hydrostatic Transmission System: Simulation and Experimentation

Samanta¹,

Ghoshal²

2013

JMSIC

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Model-Based Diagnosis and Prognosis of Hybrid Dynamical Systems with Dynamically Updated Parameters

Prakash

Samantaray

2017

Bond Graphs for Modelling, Control and Fault Diagnosis of Engineering Systems

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A multipole-based effect catalog system for the systematic identification of potential measurands

Vorwerk-Handing,

Welzbacher,

Kirchner

2023

Des. Sci.

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Caused by the progressing digitalization in mechanical engineering, a significant demand for information about characteristic process and state variables of technical systems arises. However, since it is oftentimes neither obvious what nor how to measure, the integration of measuring functions, in particular in terms of a retrofit, represents a current challenge in mechanical engineering. In order to overcome this challenge, an approach for the systematic identification of potential measurands is provided in this contribution. For this purpose, the approach of physical effect catalogs is taken up and used for the systematic identification of potential measurands, starting from a physical variable to be determined. Existing catalog systems have two major limitations with respect to the intended identification of cause–effect relationships: They assume an effect to be realized and a consideration of design parameters of a technical system is not intended. These limitations are overcome by linking the fundamental idea of existing catalog systems with the basics of multipole-based modeling. In this way, a multipole-based effect catalog system is developed. It creates the foundation to systematically include the changes and transformations of a process or state variable to be determined into the identification of potential measurands.

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Incremental Bond Graphs

Cited by 21 publications

References 19 publications

Single fault isolation of a Hydrostatic Transmission System: Simulation and Experimentation

Single fault isolation of a Hydrostatic Transmission System: Simulation and Experimentation

Model-Based Diagnosis and Prognosis of Hybrid Dynamical Systems with Dynamically Updated Parameters

A multipole-based effect catalog system for the systematic identification of potential measurands

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