Sökning: "drive"

Visar resultat 16 - 20 av 1066 avhandlingar innehållade ordet drive.

1. 16. Drive train system dynamic analysis; Application to wind turbines

   Författare :Saeed Asadi; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wind turbine drive train dynamics; Model validation; Global sensitivity analysis; Bearing defects detection;

   Sammanfattning : To facilitate the design and production of highly efficient and reliable wind turbine drive trains, the project deals with the mathematical modelling and experimental study of drive train system dynamics.A typical drive train is considered as the subsystem of a wind turbine that transfers mechanical power from the rotor hub to the generator, and thereby plays an important role in the system dynamics and efficiency of wind turbine operation. LÄS MER

3. 17. Robust Control of an Induction Motor Drive

   Författare :Henrik Mosskull; Bo Wahlberg; Marian Kazmiekowski; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Automatic control; Reglerteknik;

   Sammanfattning : This thesis considers robust control of an induction motor drive, consisting of an input filter, a voltage source inverter and one or several induction motors in parallel. The motor torque is here controlled by using the method Indirect Self Control (ISC), and power oscillations between the inverter and the input filter are damped by means of a stabilization controller in an outer feedback loop. LÄS MER

4. 18. Wet clutch tribology : friction characteristics in all-wheel drive differentials

   Författare :Rikard Mäki; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Maskinelement; Machine Elements;

   Sammanfattning : In recent past, several electronically controlled automotive transmission systems, where wet clutches are used as intelligent differentials, have emerged on the market. These applications generally impose high stresses on the transmission fluids. LÄS MER

5. 19. Design Optimization in Industrial Robotics : Methods and Algorithms for Drive Train Design

   Författare :Marcus Pettersson; Johan Ölvander (Andersson); Torgny Brogårdh; Jorge Angeles; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Robot manufacturers; industrial robot; robot design; Electrical engineering; Elektroteknik;

   Sammanfattning : Robot manufacturers, like many other manufacturers, are experiencing increasing competition in a global market where one way to confront the challenge is by making the development process more efficient. One way to speed up the time to market for new products is to take advantage of design optimization based on simulation models. LÄS MER

7. 20. How ISM properties drive Lyman Continuum Escape

   Författare :Johannes Puschnig; Matthew Hayes; Göran Östlin; Rahman Amanullah; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Astrophysics; Cosmology; Extragalactics; Reionization; Lyman Continuum; Interstellar Medium; ISM; Tololo 1247-232; Astronomy; astronomi;

   Sammanfattning : The thesis introduces physical processes that are at work in astrophysical plasmas and reviews the current state of research related to the emission of ionizing photons, i.e. Lyman continuum (LyC). Star forming galaxies and active galactic nuclei are discussed as sources of LyC. LÄS MER