Sökning: "Spectral fatigue analysis"
Hittade 5 uppsatser innehållade orden Spectral fatigue analysis.
1. Comparison of Fatigue Life Evaluation Methods
Master-uppsats, KTH/HållfasthetsläraSammanfattning : The aim of this thesis is to investigate a selected set of fatigue life calculation methods and evaluate if they are suitable for fatigue life estimation of truck components at Scania. Failure due to fatigue can be cause by road induced vibrations, which is an inevitable phenomenon trucks are exposed to. LÄS MER
2. Transient and Spectral Fatigue Analysis for Random Base Excitation
H-uppsats,Sammanfattning : This thesis work gives an insight on how to estimate the fatigue damage using transient and spectral fatigue analysis for both uniaxial and multiaxial stress states in case of random vibration base excitation. The transient method involves a rainflow count algorithm that counts the number of cycles causing the fatigue damage, while the spectral method is based on probabilistic assumptions from which an expected value of fatigue damage can be estimated. LÄS MER
3. Study of Vibration Transmissibility of Operational Industrial Machines
Master-uppsats, Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandlingSammanfattning : Industrial machines during their operation generate vibration due to dynamic forces acting on the machines. This vibration may create noise, abrasion in the machine parts, mechanical fatigue, degrade performance, transfer to other machines via floor or walls and may cause complete shutdown of the machine. LÄS MER
4. Extreme loading and fatigue analysis of a wave energy device
Master-uppsats, KTH/Marina systemSammanfattning : Wave energy is one of the possible solutions for meeting the future energy demand in a clean and sustainable way. Extracting large amounts of energy, a wave energy device would be subjected to extreme and fatigue loads from the waves. LÄS MER
5. Numerical Simulation of Wind Turbine Wakes based on Actuator Line Method in NEK5000
Master-uppsats, KTH/MekanikSammanfattning : Nowadays wind turbines are clustered in wind farms and the wake development plays an important role in energy production and blade fatigue load of tubines. The actuator line method is an effective modeling approach that gives improtant wake flow characterstics of a wind turbine. LÄS MER