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Visar resultat 1 - 5 av 14 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Dynamics of some vibro-impacting systems with amplitude constraints

   Författare :Jan-Olov Aidanpää; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hållfasthetslära; Solid Mechanics; Datorstödd maskinkonstruktion; Computer Aided Design;

   Sammanfattning : This thesis concerns the dynamics of some vibro-impacting systems with fixed or moving amplitude constraints. It is based on and includes five papers, marked A to E. Simple models of three different vibro-impacting systems with applications in the fields of impact hammers, granular flow and disk brakes in vehicles are analysed. LÄS MER

3. 2. Two vibroimpacting systems with amplitude constraints

   Författare :Jan-Olov Aidanpää; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hållfasthetslära; Solid Mechanics;

   Sammanfattning : .... LÄS MER

4. 3. Nonlinear dynamic analysis of vertical rotors with tilting pad journal bearings

   Författare :Gudeta Benti; Jan-Olov Aidanpää; Rolf Gustavsson; Roland Larsson; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; vertical rotor; tilting pad journal bearing; stiffness; damping; Machine Design; Maskinkonstruktion;

   Sammanfattning : .... LÄS MER

5. 4. Rotordynamic Modeling and Characterization of Support Elements in Vertical Machines

   Författare :Gudeta Benti; Jan-Olov Aidanpää; Rolf Gustavsson; Ilmar Santos; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Rotordynamic; Support Element; Bearing; Squeeze Film Damper; Hydropower; Vertical Machine; Machine Design; Maskinkonstruktion;

   Sammanfattning : The dynamic properties of rotating machines are highly influenced by interconnecting devices, such as bearings, seals, or squeeze-film dampers. They play a significant role in regulating the characteristics of the interaction between the rotating and stationary parts of the machines. LÄS MER

7. 5. Detection of blade icing and its influence on wind turbine vibrations

   Författare :Sudhakar Gantasala; Jan-Olov Aidanpää; Michel Cervantes; Jean-Claude Luneno; Viktor Berbyuk; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Computer Aided Design; Datorstödd maskinkonstruktion;

   Sammanfattning : Wind turbine installations in extreme conditions like cold climate have increased over thelast few years and expected to grow in future in North America, Europe, and Asia regions due to good wind resources and land availability. Their installed capacity could reach 186 GW by the end of 2020. LÄS MER