Essays about: "contact dynamics"

Showing result 11 - 15 of 79 essays containing the words contact dynamics.

  1. 11. Deep Reinforcement Learning for Dynamic Grasping

    University essay from Uppsala universitet/Avdelningen för systemteknik

    Author : Andreas Ström; [2022]
    Keywords : Deep Reinforcement Learning; Dynamic Grasping; DDPG; HER; Robotics;

    Abstract : Dynamic grasping is the action of, using only contact force, manipulating the position of a moving object in space. Doing so with a robot is a quite complex task in itself, but is one with wide-ranging applications. READ MORE

  3. 12. Parametric Studies of Train-Track-Bridge Interaction : An evaluation of the dynamic amplification due to track irregularities for freight transport

    University essay from KTH/Bro- och stålbyggnad

    Author : Rasmus Elm Dahlman; Emil Lundberg; [2021]
    Keywords : Dynamics; dynamic amplification factor; railway bridge; train-track-bridge interaction; vehicle model; track irregularities; PSD; Dynamisk förstoringsfaktor; dynamik; järnvägsbroar; tåg-spår-bro interaktion; fordonsmodell; spårojämnheter; PSD;

    Abstract : In this thesis a train-track-bridge interaction (TTBI) model is developed in order to study the dynamic amplification from track irregularities on railway bridges traversed by freight trains. These simulations are of great importance since rail freight transport is expected to increase in order to meet the climate goals. READ MORE

  4. 13. Accurate Simulation of a Collaborative Robot Arm with Cartesian Impedance Control

    University essay from Lunds universitet/Institutionen för reglerteknik

    Author : Joel Holmesson; [2021]
    Keywords : Technology and Engineering;

    Abstract : Simulation of systems is used in several fields of science as a tool for safe and resource-efficient testing, as well as a tool for prediction. In this thesis, the goal is to produce an accurate simulation of a collaborative robot arm, together with a controller solution. The robot is supposed to learn and perform contact-rich tasks. READ MORE

  5. 14. A bonded discrete element approach to simulate loading with hydraulic mining excavators

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Carl Andersson; [2021]
    Keywords : DEM; bonded DE; granular material; hydraulic excavator; wear; Archard s wear law; LS-DYNA; simulation;

    Abstract : When operating hydraulic mining excavators the loading equipment is exposed to harsh conditions which lead to extensive wear of the equipment, especially the bucket and bucket teeth. Simulations are used to better understand the wear development and to evaluate new methods to operate excavators more efficiently. READ MORE

  6. 15. Virtual verification and improvement of innovative wind turbine gearbox design

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Ioannis Pierratos; [2021]
    Keywords : Gearbox; Multibody Dynamics; Wind Turbine; Multikroppsdynamik MBS ; Vindkraftverk; Växellåda;

    Abstract : Cascade Drives develops electromechanical linear actuators based on multiple pinions interacting with a gear rack. With a patented load sharing mechanism, that uses flexible torsional elements, the torque is equally distributed among the pinions. READ MORE