Search for dissertations about: "Matti Rantatalo"

Found 5 swedish dissertations containing the words Matti Rantatalo.

  1. 1. Advanced measurement and modelling methods for noise source analysis

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Matti Rantatalo; [2010]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknisk akustik; Engineering Acoustics;

    Abstract : In daily life sound is a vital dimension for the perception of the world around us but can in some cases be considered as annoying, irritating, or even harmful. In these cases the sound is labelled as noise and can be addressed in two ways, either by insulating the noise problem from the receiver (person) or by altering the source. READ MORE

  2. 2. Non-contact measurements and modelling of milling machine tool vibrations

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Matti Rantatalo; [2006]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknisk akustik; Engineering Acoustics;

    Abstract : This thesis concerns the development of non-contact measurement methods and analysis of rotors. The methods have been verified and applied to milling machine spindles in order to investigate the speed dependency in the milling machine spindle dynamic. The research was financed by the Swedish Agency for Innovation Systems (Vinnova). READ MORE

  3. 3. An Investigation of the Iron-Ore Wheel Damages using Vehicle Dynamics Simulation

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Saeed Hossein Nia; Sebastian Stichel; Matti Rantatalo; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; three-piece bogie; wear; RCF; prediction; traction; braking; heavy haul; simulation; Farkostteknik; Vehicle and Maritime Engineering;

    Abstract : Maintenance cost is one of the important issues in railway heavy haul operations. For the iron-ore company LKAB, these costs are mainly associated with the reprofiling and changing of the wheels of the locomotives and wagons. The main reason for the wheel damages is usually surface initiated rolling contact fatigue (RCF) on the wheels. READ MORE

  4. 4. Prognostics and Health Management of Engineering Systems for Operation and Maintenance Optimisation

    University dissertation from Luleå : Luleå University of Technology

    Author : Madhav Mishra; Matti Rantatalo; Kai Goebel; Kalevi Huhtala; [2018]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Prognostics and Health Management PHM ; Diagnostics; Prognostics; Bayesian; Hierarchical; L10; Prediction; Bearing; Li-ion battery; RUL; Particle filter; Model-based; Data-driven; Algorithms; Railway track geometry; Drift och underhållsteknik; Operation and Maintenance;

    Abstract : Prognostics and health management (PHM) is an engineering discipline that aims to maintain system behaviour and function and ensure mission success, safety and effectiveness. Prognostics is defined as the estimation of remaining useful life. READ MORE

  5. 5. Dynamic modelling and analysis of vertical machines

    University dissertation from Luleå tekniska universitet

    Author : Erik Synnegård; [2016]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Datorstödd maskinkonstruktion; Computer Aided Design;

    Abstract : Since Sweden’s hydropower plants are getting old and operating conditions have changed, there is a need for simulation tools to predict the functionality, durability and needs for maintenance. Also for breakdowns and major revisions, there is a benefit if dynamical problems could be predicted through simulations. READ MORE