Vibration Fatigue by Spectral Methods relates the structural dynamics theory to the high-cycle vibration fatigue. The book begins with structural dynamics theory and relates the uniaxial and multiaxial vibration fatigue to the underlying structural dynamics and signal processing theory. Organized in two parts, part I gives the theoretical background and part II the selected experimental research. The time- and frequency- domain aspects of signal processing in general, related to structural dynamics and counting methods are covered in detail. It also covers all the underlying theory in structural dynamics, signal processing, uniaxial & multiaxial fatigue; including non-Gaussianity and non-stationarity. Finally, it provides the latest research on multiaxial vibration fatigue and the non-stationarity and non-Gaussianity effects. This book is for engineers, graduate students, researchers and industry professionals working in the field of structural durability under random loading and vibrations and also those dealing with fatigue of materials and constructions. - Introduces generalized structural dynamics theory of multiaxial vibration fatigue - Maximizes understanding of structural dynamics theory in relation to frequency domain fatigue - Illustrates connections between experimental work and theory with case studies, cross-referencing, and parallels to accelerated vibration testing

To delo obravnava uporabo kamer za meritev polnega polja dinamskih odzivov struktur. Strukture, predvsem pri višjih frekvencah, nihajo z zelo majhnimi amplitudami pomikov in so ti težko zaznavni s kamerami, poleg tega meritve s kamerami predstavljajo velike količine podatkov, katere je potrebno analizirati v smiselnem času. V delu je predstavljen pregled nekaterih metod identifikacije pomikov iz slik in metod identifikacije modalnih parametrov. Raziskani so vplivni parametri in potenciali meritev s hitrimi kamerami. Najpomembnejši izsledki raziskav so določitev potenciala ločljivosti premikov, hibridna modalna identifikacija odziva pod nivojem šuma in razvit merilni postopek za meritve spektralnih komponent nihanja s klasičnimi kamerami.