Sökning: "Fault diagnosis"

Visar resultat 31 - 35 av 56 avhandlingar innehållade orden Fault diagnosis.

  1. 31. Model Based Diagnosis and Supervision of Industrial Gas Turbines

    Författare :Emil Larsson; Jan Åslund; Erik Frisk; Lars Eriksson; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Supervision of performance in gas turbine applications is important in order to achieve: (i) reliable operations, (ii) low heat stress in components, (iii) low fuel consumption, and (iv) efficient overhaul and maintenance. To obtain good diagnosis performance it is important to have tests which are based on models with high accuracy. LÄS MER

  3. 32. Modeling and Diagnosis of Friction and Wear in Industrial Robots

    Författare :André Carvalho Bittencourt; Svante Gunnarsson; Mikael Norrlöf; Andrew Starr; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : High availability and low operational costs are critical for industrial systems. While industrial equipments are designed to endure several years of uninterrupted operation, their behavior and performance will eventually deteriorate over time. LÄS MER

  4. 33. Discrete Event Process Modeling of Manufacturing Systems Using Sensor Graphs

    Författare :Tord Alenljung; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; State Estimation; Fault Detection and Diagnosis; Process Modeling; Discrete Event Systems; Logic Controllers; Formal Verification; State Feedback Control;

    Sammanfattning : The design of control programs for manufacturing systemsis becoming more and more complex as the demands for flexibility,efficiency and reconfigurability increase, due tochanging consumer demands and fierce competition.There are methods stemming from academia that can assist the control programmersin facing these challenges. LÄS MER

  5. 34. A proposal for the diagnosis of uncertain dynamic systems based on interval models

    Författare :Esteban Gelso; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The performance of a model-based diagnosis system could be affected by several uncertainty sources, such as,model errors,uncertainty in measurements, and disturbances. This uncertainty can be handled by mean of interval models. LÄS MER

  7. 35. An Approach to Diagnosability Analysis for Interacting Finite State Systems

    Författare :Dan Lawesson; Ulf Nilsson; Inger Klein; Albert Benveniste; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Model-based diagnosis; abstraction; finite state systems; discrete event systems; Computer science; Datalogi;

    Sammanfattning : Fault isolation is the process of reasoning required to find the cause of a system failure. In a model-based approach, the available information is a model of the system and some observations. LÄS MER