Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 7 of 7 for “"Rolling friction"”.
-
Dynamic Friction Characterization of Tripod Constant Velocity (Cv) Joints: Experiments, Analysis and Modeling
… thesis is to develop a physics-based internal friction model of tripod CV joints that can be readily applied during new vehicle development. This model will replace current practices of using empirical fixed friction coefficient values. In order to achieve this goal, a prototype …
-
An Experimental Method to Calculate Coefficient of Friction in Mecanum Wheel Rollers and Cost Analysis Using DFMA Techniques
… rollers to find its values of coefficient of friction in different conditions. This thesis also includes the work conducted to formulate the equations which can be used to find different parameters of roller for its motion, kinematics, rolling, friction and overall impact with respect to the …
-
Comparative analysis of automotive powertrain choices for the near to mid-term future
… in aerodynamics, weight reduction and tire rolling friction are also taken into account. The basis for the comparison is the potential of these powertrain technologies for reduction of oil consumption and green house gas emissions at the same level of performance as current vehicles. The …
-
Microscale Investigation of the Influence of Interparticle Cohesion on the Macro-Behaviour of Soil
… role of micro-parameters such as cohesion and rolling friction (i.e., representing the shape effect), and others on the multi-faceted nature of soil. Finally, this study indicates that DEM and CFD-DEM coupling is a powerful approach to enhance the microscale understanding of soil behaviour with …
-
Simulation of urea particle flow using DEM for dry fertilizer spreading optimization
… set consisted of a particle-particle static friction coefficient of 0.27 and a rolling friction coefficient of 0.11. With this set, the DEM model predicted angle of repose and bulk density with percent relative errors of 10.02% and 7.50%, respectively. The calibrated model was then validated …
-
Discrete element method simulation of wheat bulk density
… the wheat-to-wheat coefficient of static friction and wheat-to-wheat rolling friction had the greatest influence on simulated bulk density. Wheat bulk density as affected by drop height and percentage composition of the three kernel fractions can be simulated accurately using either …
-
Energy Modeling of Differential Drive Robots
<p>Improving the energy efficiency of robots and increasing the time of operation has been a very hot research topic in recent times. There has been a lot of work on optimizing energy consumption especially in mobile robots. Researchers have been focused on designing motion planning techniques …