Sökning: "guiding forces"

Visar resultat 1 - 5 av 19 avhandlingar innehållade orden guiding forces.

1. 1. Optimisation of horizontal alignments for railways - Procedures involving evaluation of dynamic vehicle response

   Författare :Björn Kufver; KTH; []
   Nyckelord :Railway; track geometry; alignment; cant; climbing ratios; clothoids; guiding forces; passenger comfort; Pct; superelevation ramps; simulation; track shift forces; track vehicle interaction; transition curves; vehicle dynamics; wheel rail forces;

   Sammanfattning : This doctoral thesis summarises and deepens eightpublications on a project concerning railway alignments.The thesis presents an approach to definingequally costlyalignment alternatives. LÄS MER

3. 2. Analysis of the Unsteady Flow Field of a Passenger Vehicle

   Författare :Lennert Sterken; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wind tunnel; Wake; CFD; Pressure measurements; Extensions; Yaw response; External aerodynamics; Aerodynamic forces;

   Sammanfattning : Political legislation and consumer requirements for a sustainable society require that vehicle manufacturers focus on reduced fuel consumption and lower emissions. Areduction in the overall energy consumption can be directly linked to a decrease of the driving resistance, where the aerodynamic drag significantly contributes at velocities above 70km/h. LÄS MER

4. 3. De glömda verkstäderna : En studie av två familjeföretag på den uppländska landsbygden ca 1930 - 2000

   Författare :Bo Larsson; Maths Isacson; Iréne A. Flygare; Kirsti Niskanen; Uppsala universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Economic history; rural workshops; family company; agricultural machines; customers; employees; motive forces; gender perspective; oral history; Gemeinschaft Gesellschaft; social capital; interplay; Ekonomisk historia; Economic history; Ekonomisk historia;

   Sammanfattning : The thesis studies two small family businesses situated in the rural area of Uppsala County. Both were active during the twentieth century (1933 and henceforth and 1936 – 1976 respectively) and had the agriculture surroundings and bigger industries as their principal customers. Workshops of this kind have existed in a great number. LÄS MER

5. 4. Imaging and modeling the cardiovascular system

   Författare :Elira Maksuti; Michael Broomé; Anna Bjällmark; Matilda Larsson; Martin Ugander; Patrick Segers; KTH; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cardiac pumping; diastolic function; hemodynamics; modeling; simulation; arterial stiffness; ultrasound; shear wave elastography.; Medical Technology; Medicinsk teknologi; Cardiac pumping;

   Sammanfattning : Understanding cardiac pumping function is crucial to guiding diagnosis, predicting outcomes of interventions, and designing medical devices that interact with the cardiovascular system.  Computer simulations of hemodynamics can show how the complex cardiovascular system is influenced by changes in single or multiple parameters and can be used to test clinical hypotheses. LÄS MER

7. 5. Designing workstations for human–industrial robot collaboration : Development and application of simulation software

   Författare :Fredrik Ore; Magnus Wiktorsson; Yvonne Eriksson; Lars Hanson; Cecilia Berlin; Mälardalens högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Innovation and Design; innovation och design;

   Sammanfattning : Human-industrial robot collaboration (HIRC) creates an opportunity for an ideal combination of human senses and industrial robot efficiency. The strength, endurance and accuracy of industrial robots can be combined with human intelligence and flexibility to create workstations with increased productivity, quality and reduced ergonomic load compared with traditional manual workstations. LÄS MER