Sökning: "residual generator"

Visar resultat 1 - 5 av 11 avhandlingar innehållade orden residual generator.

1. 1. Residual Generation Methods for Fault Diagnosis with Automotive Applications

   Författare :Carl Svärd; Mattias Nyberg; Mogens Blanke; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Diagnosis; fault diagnosis; FDI; fault detection; residual; residual generation; residual generator; DAE; Systems engineering; Systemteknik;

   Sammanfattning : The problem of fault diagnosis consists of detecting and isolating faults present in a system. As technical systems become more and more complex and the demands for safety, reliability and environmental friendliness are rising, fault diagnosis is becoming increasingly important. LÄS MER

3. 2. Tailored process gases for laser powder bed fusion

   Författare :Camille Nicole Géraldine Pauzon; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Helium; Laser powder bed fusion; AM process productivity; Spatter particles; Residual oxygen; 316L stainless steel; Argon; Nitrogen; Additive manufacturing; Process atmosphere; Process stability; Residual stresses.; Ti-6Al-4V; Alloy 718;

   Sammanfattning : Metal laser powder bed fusion (L-PBF) allows for production of complex components using the energy from a laser to locally melt micron-sized powder following a layer-wise approach. Considerable scientific efforts are focused on addressing the influence of the process parameters on the melting stability and the control of material properties, while developing necessary monitoring and characterization tools. LÄS MER

4. 3. Distributed diagnosis and simulation based residual generators

   Författare :Jonas Biteus; Linköpings universitet; []
   Nyckelord :Diagnosis; Distributed diagnosis; Fault isolation; Residual generator; Simulation; TECHNOLOGY; TEKNIKVETENSKAP;

   Sammanfattning : Fault diagnosis is becoming increasingly important for many technical systems. This is for example true in automotive vehicles where fault diagnosis is needed due to economic reasons such as efficient repair and fault prevention, and legislations that mainly deal with safety and pollution. LÄS MER

5. 4. The Treatment of Polymorphism and Modules in a Partial Evaluator

   Författare :Rogardt Heldal; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; modules; partial evaluation; separate compilation; compiler generator; functional programming; binding-time analyser; polymorphic types;

   Sammanfattning : In this thesis we study aspects of specialisation by partial evaluation and compiler generation. After significant research during the last two decades, there are now powerful specialisers for several programming languages, such as LISP, Scheme, ML, and C. But some features of programming languages are still not handled by specialisers. LÄS MER

7. 5. Dynamic threshold generators for robust fault detection

   Författare :Michael Bask; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Reglerteknik; Control Engineering;

   Sammanfattning : Detection of faults, such as clogged valves, broken bearings or biased sensors, has been brought more and more into focus during the last few decades. There are two main reasons why faults are important to detect at an early stage. LÄS MER