Research on AE Signal Propagation in Helicopter Structural Elements

Abstract

    <jats:p> The paper contains results of experimental research carried out helicopter bench. In order to create an attenuation chart for AE signal amplitude in helicopter fuselage, a number of experiments were performed on the frame and stringers, inside the fuselage. Later helicopter test bench was used to develop defect localization methodology of helicopter structure fatigue damage technical diagnostics. Analysing helicopter structural defects for different helicopters types it is concluded that the joint elements of helicopter tail boom are still exposed to fatigue crack formation. AE method shows highly effective results predicting fracture of helicopter joint elements.

Document type: Article

Original document

The different versions of the original document can be found in:

• https://content.sciendo.com/downloadpdf/journals/tae/3/1/article-p5.pdf under the license https://creativecommons.org/licenses/by-nc-nd

• https://ortus.rtu.lv/science/lv/publications/23802 under the license cc-by-nc-nd

• http://content.sciendo.com/view/journals/tae/3/1/article-p5.xml,

http://www.degruyter.com/view/j/tae.2016.3.issue-1/tae-2016-0001/tae-2016-0001.pdf,

http://dx.doi.org/10.1515/tae-2016-0001

• http://www.degruyter.com/view/j/tae.2016.3.issue-1/tae-2016-0001/tae-2016-0001.xml?format=INT,

https://doaj.org/toc/2255-9876 under the license http://creativecommons.org/licenses/by-nc-nd/4.0

• https://content.sciendo.com/view/journals/tae/3/1/article-p5.xml,

https://core.ac.uk/display/90829836,

https://ortus.rtu.lv/science/lv/publications/23802,

https://academic.microsoft.com/#/detail/2620999359