Modal Passport of Dynamically Loaded Structures: Application to Composite Blades
13th International Conference "Modern Building Materials, Structures and Techniques" (MBMST 2019): Selected Papers 2019
Aleksejs Mironovs, Deniss Mironovs

Close relation of modal properties to mechanical properties of structures presents interest for applied research and solu-tions of Structural Health Monitoring (SHM) tasks. The paper considers application of analytical and modal analysis techniques for structural research and monitoring of composite blades as well as required measurement tools. The Roving Hummer Technique (RHT) and Operational Modal Analysis OMA) were admitted as optimal methods for modal prop-erties estimation, but 3-axial accelerometers and vibration deformation sensors - as most acceptable measurement tools. There is discussion of methodology and technical aspects required for modal properties estimation of static and rotating blades. Samples of composite blades preparation for measurements and equipment applied for testing are considered. Authors discuss the modal passport concept as the platform for applied studies of modal properties and for diagnostic purposes including Structural Health Monitoring (SHM) of operating structures. Typical modal passport structure is de-scribed as the set of modal parameters that are common for same type of blades and generalized dependences of modal parameters from operational factors. The paper discusses the principles of modal passport application for a particular blade based on its individual modal properties. There are conclusions about application of typical modal passport in in-dustry


Keywords
Modal analysis, rotating blades, modal passport
DOI
10.3846/mbmst.2019.091
Hyperlink
http://webu3.vgtu.lt/uni/stf/mbmst/750-757_MBMST_091.pdf

Mironovs, A., Mironovs, D. Modal Passport of Dynamically Loaded Structures: Application to Composite Blades. In: 13th International Conference "Modern Building Materials, Structures and Techniques" (MBMST 2019): Selected Papers, Lithuania, Vilnius, 16-17 May, 2019. Vilnius: VGTU Press, 2019, pp.750-757. e-ISBN 978-609-476-197-3. e-ISSN 2029-9915. Available from: doi:10.3846/mbmst.2019.091

Publication language
English (en)
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