Essays about: "damping factor"

Showing result 1 - 5 of 34 essays containing the words damping factor.

1. 1. Approximating Damping Coefficient of Bolted Joints using the Finite Element Method

   University essay from KTH/Hållfasthetslära

   Author : Abhiroop Chatterjee; [2023]
   Keywords : ;

   Abstract : Bolted joints are important due to their energy dissipation property in structures,but the damping mechanism is also highly nonlinear and localized. The goal ofthis thesis is to develop an accurate method for modeling bolted joint dampingin large structures using finite element (FE) software. READ MORE

3. 2. Parameter study for an energy efficient suspension for a rail vehicle prototype

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

   Author : Ludvig Danström; [2023]
   Keywords : Delsbo electric; Energy efficiency; Rail vehicle; Suspension system; Delsbo electric; energieffektivitet; fjärder- och dämparsystem; spårfordon;

   Abstract : The push for sustainability in all parts of our society has never been as big as it is currently. One project that aims to produce sustainable innovation in the railway industry is the Delsbo Electric competition where some of the world’s most energy efficient vehicles compete. READ MORE

4. 3. Statistical Analysis and Modelling of Engine Oil Degradation

   University essay from Umeå universitet/Institutionen för fysik

   Author : Nils Bastiampillai; [2023]
   Keywords : ;

   Abstract : An engine oil has several important properties it must fulfil in order to provide efficient engine operation. In addition to damping friction by lubrication, an engine oil must be able to cool, protect against corrosion, dampen vibrations and clean surfaces from contamination, wear and residual products. READ MORE

5. 4. 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

6. 5. Reliability-Based Sensitivity Analysis of the Dynamic Response of Railway Bridges

   University essay from KTH/Bro- och stålbyggnad

   Author : Hasan Al-Zubaidi; [2022]
   Keywords : Railway bridges; High-speed trains; Simply supported beam; Global sensitivity analysis; Uncertainty quantification; Reliability; Ballast instability; Running safety; Passenger comfort;

   Abstract : In response to the planned increase in operational speeds and axle loads of passengertrains that may lead to resonance-induced excessive vibrations in railway bridges,recent studies examined the reliability of bridges concerning train running safety andpassenger comfort limit states. In this respect, valuable information regarding theimportance of input variables can be obtained by conducting Sensitivity Analysis (SA). READ MORE