Sökning: "fault response"

Visar resultat 16 - 20 av 39 avhandlingar innehållade orden fault response.

1. 16. Method Development for Environmental Risk Assessment of Shipwrecks

   Författare :Hanna Landquist; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; environmental risk assessment; decision support; fault tree analysis; shipwreck;

   Sammanfattning : Potentially polluting shipwrecks containing oil or other hazardous substances may posea threat to the marine environment. This is a global problem and many shipwrecks stemfrom the Second World War and have been deteriorating on the sea floor since then. LÄS MER

3. 17. Stacking faults, deformation-induced martensite and micromechanics of metastable austenite in steels studied by high-energy synchrotron X-ray diffraction

   Författare :Benjamin Neding; Peter Hedström; Dmytro Orlov; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; austenitic stainless steel; deformation-induced martensitic transformation; stacking fault energy; high-energy X-ray diffraction; HEXRD; high-energy X-ray diffraction microscopy; HEDM; medium Mn steel; Teknisk materialvetenskap; Materials Science and Engineering;

   Sammanfattning : Austenitic stainless steels are known for their remarkable corrosion resistance and exhibit a very high ductility and toughness. They posses the face centered cubic crystal structure. LÄS MER

4. 18. Tools for Autonomous Process Control

   Författare :Anders Wallén; Institutionen för reglerteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; sequential control; software architectures; fast set point response; spectral estimation; frequency domain identification; relay feedback; non-linear system identification; Autonomous Control; Process Control; Grafcet; Automation; robotics; control engineering; Automatiska system; robotteknik; reglerteknik;

   Sammanfattning : There is an ongoing trend towards higher automation level in process control systems. The purpose of a plant is to manufacture some product at a high production rate with a consistent quality, while minimizing the use of resources in terms of energy consumption, raw material and labor. LÄS MER

5. 19. 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

7. 20. Dynamic Modelling and Vibration Analysis for Gear Tooth Crack Detection

   Författare :Omar D. Mohammed; Robert Randall; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Drift och underhållsteknik; Operation and Maintenance Engineering;

   Sammanfattning : The aim of applying vibration-based condition monitoring in gear systems is to detect the initiation and development of degradation before the occurrence of failure. Eventually, degradation will result in a malfunction of the gearing system, which will affect the availability of the whole system. LÄS MER