A method of nondestructive testing of the elements of a construction to which there is no direct access is presented. The method utilizes natural vibrations of the construction that have been excited by impacts of a special head of a hammer at specific spots. The method comprises a certain sequence that determines the position of the points of application of the impacts and measurements of the vibrations, the distribution of the frequencies of the vibrations by range, and the construction of a limited number of ranges of the spectrum of frequencies of the natural vibrations. The state of a controlled element of the construction is determined from the distributionof the frequencies of the natural vibrations in the spectrum. Results of experimental investigations of the inner jackets of eight nozzle heads by means of this method are presented.
Refractories and Industrial Ceramics – Springer Journals
Published: Apr 18, 2017
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
All the latest content is available, no embargo periods.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud