20.500.12556/RUL-167086 3D sound radiation reconstruction from camera measurements In general, the measurement of the sound radiation field by machinery and partitions requires time-consuming tests, which should be carried out in specially dedicated anechoic/reverberant facilities with calibrated sensors and complex acquisition and post processing equipment. This article introduces a two-step method for the identification from optical measurements of the free- field sound radiation generated by flexural vibrations of closed shells. In the first step, the flexural vibration of the shell is reconstructed with a frequency domain triangulation technique based on short multi-view video acquisitions made with a single high-resolution, high-speed camera. In the second step, the free-field sound radiation is derived from a discretized boundary integral formulation. The study is focused on the identification of the sound radiation from the flexural vibration of a baffled cylinder model structure. The vibration and sound fields reconstructed from the camera measurements are validated against direct measurements taken with a laser scanner vibrometer and a microphone array, respectively. Overall, this research demonstrates that optical methods based on camera measurements can be suitably employed to produce fast and accurate full-field measurements of sound radiation of closed shells (without the need for a dedicated measurement environment, e.g. reverberant, anechoic chambers). videogrammetry flexural vibration measurement sound radiation reconstruction frequency-domain triangulation videogrametrija merjenje vibracij zvočno sevanje triangulacija v frekvenčni domeni true false true Angleški jezik Slovenski jezik Podatek o licenci je pridobjen s strani avtorja in objavljen na založnikovi spletni strani. Članek v reviji 2025-02-07 09:49:26 2025-02-07 09:49:31 2026-01-08 11:56:28 0000-00-00 00:00:00 2025 0 0 20 str. Vol. 227, art. 112400 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 534.83 1096-1216 10.1016/j.ymssp.2025.112400 225020931 Baldini_..._3D_sound.pdf Baldini_..._3D_sound.pdf 1 42B8B2362B6F6059FB5B5797C2188288 0029158e40145c66709bdc736993056bdbdb25e59574ec7cf813cf880f46a9f8 4747a829-e530-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=199256 https://www.sciencedirect.com/science/article/pii/S0888327025001013?via%3Dihub 1 956e5123-e52f-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=199252 Fakulteta za strojništvo 0 0 0