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Showing result 1 - 5 of 8 essays matching the above criteria.

1. 1. Cable Shape Optimization - Drag Reduction of Cables Used in Marine Applications

   University essay from KTH/Teknisk mekanik

   Author : Simon Garpenquist; [2023]
   Keywords : Wind Tunnel Experiment; Computational Fluid Dynamics; Aerodynamic Forces; Drag Reduction; Shape Optimization; Flow around Cylinders; Yacht Racing;

   Abstract : It is important to understand the aerodynamic properties of tensioned cables (e.g. used in suspension bridges and yacht riggings), both for drag reduction and vibrational suppression purposes. READ MORE

3. 2. Research and Analysis of Suspension Dynamics of an Autonomous Bidirectional Road Vehicle

   University essay from KTH/Väg- och spårfordon samt konceptuell fordonsdesign

   Author : Isabelle Gürsac; Tsimafei Klimantovich; [2023]
   Keywords : Bidirectional vehicle; 4WS; 4WD; suspension angles; kingpin inclination; camber angle; caster angle; toe angle; relative importance; suspension setup; suspension system; drivetrain; efficiency.; Dubbelriktat fordon; fyrhjulsstyrning; fyrhjulsdrift; hjulvinklar; Kingpin-lutningsvinkel; cambervinkel; castervinkel; toevinkel; relativ betydelse; fjädringsinställning; hjulupphängningssystem; drivlina; effektivitet.;

   Abstract : The bidirectionality of road vehicles is a novel research area, which is directly connected with autonomy, efficiency, flexibility and sustainability of transportation. The research in this area is mostly performed with stringent restrictions in corporate secrecy. This fact makes the area publicly unexplored, moreover highly future oriented. READ MORE

4. 3. Evaluation of Active Rear Steering through Multi-Body Simulation

   University essay from KTH/Väg- och spårfordon samt konceptuell fordonsdesign

   Author : Matteo Rossi; Gabriele Bertoli; [2021]
   Keywords : Vehicle dynamics; Active rear steering; active systems; automotive; MBS; Simpack; Volvo; CAE; single-track model; bicycle model; feedforward control; Vehicle dynamics; Active rear steering; active systems; automotive; MBS; Simpack; Volvo; CAE; single-track model; bicycle model; feedforward control;

   Abstract : The goal of this thesis work is to evaluate and quantify the advantages and disadvantages of Active Rear Steering (ARS). The evaluation is carried out through Multi-Body System (MBS) simulations. An analytical model has been developed to better understand the basic dynamics of vehicles equipped with rear steering. READ MORE

5. 4. Active and semi-active suspensions for articulated vehicles to minimise tyre wear

   University essay from KTH/Väg- och spårfordon samt konceptuell fordonsdesign

   Author : Haoran Zhang; [2021]
   Keywords : Articulated vehicle; tyre wear; quarter car model; semi-active and active suspension; Ledat fordon; däckslitage; kvartsbilsmodell; semiaktiv och aktiv fjädring;

   Abstract : Tyre wear is a vital problem in vehicles, especially in articulated vehicles because of their heavier axle loads. Tyre wear can not only do harm to vehicle dynamics but also cause tyre particle emissions. Therefore, solutions that can minimise tyre wear are where this thesis work focuses. READ MORE

6. 5. Design and Qualification of a Gimbal Suspension for Attitude Control System Testing of CubeSats

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Anthony Holmberg; [2021]
   Keywords : Gimbal; CubeSat; ADCS; Suspension; Testbed; Disturbance Torque; Angular Measurement; Gimbal; CubeSat; ADCS; Upphängning; Testbädd; Störmoment; Vinkelmätning;

   Abstract : Since the dawn of the space race, satellites have grown rapidly in complexity and shrunk equally rapidly in size. Most of them contain an Attitude Determination and Control System (ADCS) on board for pointing and detumbling manoeuvres. READ MORE