Statistical Assessment of Uncertainties Pertaining to Uniaxial Vibration Testing and Required Test Margin for Fatigue Life Verification
Independent thesis Advanced level (degree of Master (Two Years))Student thesis
In the automotive industry uniaxial vibration testing is a common method used to predict the lifetime of components. In reality truck components work under multiaxial loads meaning that the excitation is multiaxial. A common method to account for the multiaxial effect is to apply a safety margin to the uniaxial test results. The aim of this work is to find a safety margin between the uniaxial and multiaxial testing by means of virtual vibration testing and statistical methods. Additionally to the safety margin the effect of the fixture’s stiffness on the resulting stress in components has been also investigated.
Place, publisher, year, edition, pages
2013. , 151 p.
Vibration Testing, FEA, Natural Frequency, Deterministic and Random Vibrations, Fatigue
Signal Processing Mechanical Engineering Probability Theory and Statistics
IdentifiersURN: urn:nbn:se:bth-2147Local ID: oai:bth.se:arkivexDD066AE2276C89A1C1257B4A00693785OAI: oai:DiVA.org:bth-2147DiVA: diva2:829415
UppsokPhysics, Chemistry, Mathematics
Smirnova, Martin Olofsson and TatianaAB, Volvo Trucks