Search for dissertations about: "airframe"

Showing result 6 - 10 of 12 swedish dissertations containing the word airframe.

  2. 6. Experiments and Modelling of Composite–Aluminium Bolted Joints

    Author : Hannes Wemming; Zlatan Kapidžić; Stefan B Lindström; Lars Johansson; Stefan Hallström; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : The aeronautical industry has always strived towards weight-efficient structures since they improve aircraft performance, enable more fuel or payload, reduce cost of manufacturing and operating the aircraft, and reduce the fuel consumption and emissions. Modern airframes are often built in materials with high strength-toweight and stiffness-to-weight ratio, such as aluminium or fibre composites. READ MORE

  4. 7. Static and Fatigue Failure of Bolted Joints in Hybrid Composite-Aluminium Aircraft Structures

    Author : Zlatan Kapidzic; Hans Ansell; Kjell Simonsson; Larsgunnar Nilsson; Michael Wisnom; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hybrid structures; Composites; Bearing failure; Bolted joints;

    Abstract : The use of fibre composites in the design of load carrying aircraft structures has been increasing over the last few decades. At the same time, aluminium alloys are still present in many structural parts, which has led to an increase of the number of hybrid composite-aluminium structures. READ MORE

  5. 8. On State-Space Models in System Identification

    Author : Tomas McKelvey; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : This thesis considers identification of multivariable discrete time linear systems by using time-invariant state-space models of finite dimension. A new model structure is introduced that is fully parametrized, i. e. all matrices are filled with parameters. READ MORE

  6. 9. Identification of State-Space Models from Time and Frequency Data

    Author : Tomas McKelvey; Lennart Ljung; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : This dissertation considers the identication of linear multivariable systems using finite dimensional time-invariant state-space models.Parametrization of multivariable state-space models is considered. A full parametrization, where all elements in the state-space matrices are parameters, is introduced. READ MORE

  7. 10. On a robotic Matlab Java testbed for mobile robots

    Author : Sven Rönnbäck; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Industriell elektronik; Industrial Electronics;

    Abstract : This thesis presents the MICA (Mobile Internet Connected Assistant) testbed and how it can be used to interface a mobile robotic system; in this case a modern wheelchair equipped with a CAN bus. In MICA we do research in embedded Internet systems, sensor technologies, navigation algorithms and in the knowledge about user. READ MORE