Essays about: "linear damping"

Showing result 1 - 5 of 49 essays containing the words linear damping.

1. 1. Methodology for analysis of vibration isolating systems

   University essay from Linköpings universitet/Mekanik och hållfasthetslära

   Author : Jonas Olsson; [2023]
   Keywords : Vibration;

   Abstract : Vibration causes problems in many kinds of machinery including fighter aircraft. It can, for example, cause structural fatigue, malfunction in equipment and injuries to humans. The sources of vibration are engines, flow disturbance and separation of external loads, to mention some. READ MORE

3. 2. Design of a small-scale wave energy converter

   University essay from Uppsala universitet/Institutionen för elektroteknik

   Author : Sumaya Farjana; [2022]
   Keywords : small-scale point absorber; scaling factors; damping coefficient;

   Abstract : In this study, a small-scale point absorber wave energy converter has been designed contemplating a full-scaled point absorber in the Mediterranean Sea state. The scaling factor for the small-scaled version has been determined by the damping coefficient calculation of the power take-off in 1:10, 1:15, and 1:20 scaling factors. READ MORE

4. 3. Active Control of High­-Speed Flexible Rotors on Controllable Tilting­-Pad Journal Bearings : Theory and Experiment

   University essay from Blekinge Tekniska Högskola/Institutionen för maskinteknik

   Author : Paul-Henrik Bull; [2021]
   Keywords : ATPJB; Fluid-Film Lubrication; Model based control; Vibration Control;

   Abstract : A common choice of bearing for industrial applications such as turbomachinery and rotating compressors is the Tilting-Pad Journal Bearing (TPJB) due to its excellent stability properties. TPJB's are however limited by the reduction of damping in the fluid film at high velocities. READ MORE

5. 4. Experimental Investigation of Fluid-added Parameters on a Kaplan Runner

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

   Author : Malin Strandberg; [2021]
   Keywords : Added mass; added inertia; fluid dynamics; hydropower; Kaplan turbine; fluid-solid interaction;

   Abstract : In order to reach climate and environmental goals, Sweden is increasing the implementation of intermittent renewable energy sources such as wind and solar power to the electricity grid. The increase of intermittent energy sources is rising power regulation requirement towards hydropower, which increasingly exposes the hydraulic turbines to high loads and fluctuating hydraulic forces. READ MORE

6. 5. Micro-architectured materials for noise and vibration control in high voltage products – design and modelling

   University essay from Uppsala universitet/Tillämpad mekanik

   Author : Alec Chamberlain; [2021]
   Keywords : Microarchitectured; lattice; elasticity; viscoelasticity; computational; homogenization;

   Abstract : Many Hitachi ABB Power Grids (HAPG) products vibrate and emit noise, but legal limitations of these parameters fuel the development of energy absorption methods used on products. Methods such as Constrained Layer Damping (CLD). READ MORE