Prediction of modal properties of circular disc with pre-stressed fields
| Autor: | Milan Naď, Rastislav Ďuriš, Tibor Nánási |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Surface (mathematics)
Materials science Plane (geometry) finite element method 0211 other engineering and technologies 02 engineering and technology Mechanics Astrophysics circular disc 021001 nanoscience & nanotechnology Finite element method Stress (mechanics) Vibration Modal lcsh:TA1-2040 Normal mode Residual stress pre-stressed fields 021105 building & construction vibration lcsh:Engineering (General). Civil engineering (General) 0210 nano-technology modal properties |
| Zdroj: | MATEC Web of Conferences, Vol 157, p 02034 (2018) |
| ISSN: | 2261-236X |
| Popis: | Many structural elements in technical devices, as well as some tools in manufacturing equipment, such as saw blade or, have a geometric shape similar to a circular disc. In many cases, these circular discs must meet the required dynamic properties. One of the techniques to achieve the required dynamic properties of circular disc is based on initiating pre-stressed fields in the disc plane. In-plane residual stresses are created by appropriate technological treatments in selected disc part, for example by rolling of annulus leading to plastic deformation which causes the change of volume distribution in this disc part. The effects of in-plane residual stresses on modal properties of circular disc are analysed. The natural frequencies modifications depending on position and width and also on the change in thickness of the roll-prestressed annulus are investigated in this paper. |
| Databáze: | OpenAIRE |
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