Application of laser and holographic interferometry to vibrational investigations of complex three-dimensional constructions

摘要

Investigations of a pipeline of complex configuration made it possible to analyze the possibilities of laser and holographic interferometry methods in studies of strains of three-dimensional constructions under the effect of vibrational loads. The combined application of the holographic method of induced fringes, the method of recording the amplitude-frequency characteristics of object's vibrations using a laser interferometer, and the method of recording holographic interferograms averaged in time was considered. The most dangerous resonance frequencies and pipeline sections, in which its material is subjected to maximum stresses, were revealed.