Sökning: "maskinkonstruktion kth"

Visar resultat 21 - 25 av 226 avhandlingar innehållade orden maskinkonstruktion kth.

1. 21. Forestry machine and soil interaction for sustainable forestry

   Författare :Abdurasul Pirnazarov; Ulf Sellgren; Kjell Andersson; Sally Shoop; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CTL-logging; forestry machine; forwarder; multi-body simulations; roots; terramechanics; wheel-soil interaction; WES model; Machine Design; Maskinkonstruktion;

   Sammanfattning : More than 50 percent of the land area of the Nordic countries Finland, Norway, and Sweden are covered by dense forests and they are among the most important producers of forest products in the world. Forestry in these countries is based on sustainable management principles – reforestation follows harvesting. LÄS MER

3. 22. On forestry machine and soil interaction for sustainable forestry

   Författare :Abdurasul Pirnazarov; Ulf Sellgren; Kjell Andersson; Iwan Wästerlund; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Machine Design; Maskinkonstruktion;

   Sammanfattning : More than 50 percent of the land area of the Nordic countries Finland, Norway, and Sweden are covered by dense forests and they are among the most important producers of forest products in the world. Forestry in these countries is based on sustainable management principles – reforestation follows harvesting. LÄS MER

4. 23. Running-in of gears - surface and efficiency transformation

   Författare :Mario Sosa; Ulf Olofsson; Stefan Björklund; Ulf Sellgren; Jorge Seabra; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; running-in; surface transformation; efficiency; gears; ground; superfinished; Machine Design; Maskinkonstruktion;

   Sammanfattning : With ever shorter development times and market demands on overall system performance such as efficiency, reliability and low maintenance, accurate predictive tools are necessary and gear drives prove to be no exception. All these characteristics have an impact on a process which has remained a riddle: running-in. LÄS MER

5. 24. A methodology for situated and effective design of haptic devices

   Författare :Xuan Sun; Kjell Andersson; Ulf Sellgren; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Design optimization; haptic devices; metamodel; multi-criteria; situatedness; Machine Design; Maskinkonstruktion;

   Sammanfattning : The realism of virtual surgery through a surgical simulator depends largely on the precision and reliability of the haptic device. The quality of perception depends on the design of the haptic device, which presents a complex design task due to the multi-criteria and conflicting character of the functional and performance requirements. LÄS MER

7. 25. Simplified Life Cycle Assessment Approaches and Potential Impact Shifts

   Författare :Katja Tasala Gradin; Sofia Ritzén; Anna Hedlund-Åström; Matthias Finkbeiner; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LCA simplification approach; impact shift; reduction measures; road transport; streamlining; screening; Machine Design; Maskinkonstruktion;

   Sammanfattning : Road transport contributes to approximately one quarter of all EU greenhouse gas emissions and is the leading cause of air pollution in cities. There are significant measures aimed at the reduction of use phase environmental impacts; in the EU, these strategies focus on the decarbonisation of road transport, such as through the prioritization of low- and zero-emission vehicles. LÄS MER