AI Article Synopsis
- Spatial thin-film structures can vibrate significantly more than their thickness when under load, which limits their performance.
- The study focuses on the vibration of tensioned membrane structures with non-uniform elements, using a formula called the Absolute Nodal Coordinate Formulation (ANCF) to include how these films wrinkle when under tension.
- The results show how different placements and sizes of non-uniform elements affect vibrations and were validated through experiments, laying the groundwork for future vibration control in thin films.
Article Abstract
Due to their lightweight characteristics, spatial thin-film structures can generate vibrations far exceeding their film thickness when subjected to external loads, which has become a key factor limiting their performance. This study examines the vibration characteristics of tensioned membrane structures with non-uniform elements subjected to impacts in air, leveraging the Absolute Nodal Coordinate Formulation (ANCF). This model takes into account the wrinkling deformation of thin films under pre-tension and incorporates it into the dynamic equation derived using the absolute node coordinate method. A detailed discussion was conducted on the influence of non-uniform elements, situated at different locations and side lengths, on the vibration characteristics of the thin film. The analytical results obtained from the vibration model were compared with the experimental results, validating the effectiveness of the vibration model. This provides a theoretical foundation for the subsequent vibration control of thin films.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11433922 | PMC |
| http://dx.doi.org/10.3390/mi15091147 | DOI Listing |
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