Sound insulation properties of embedded co-cured composite damping sandwich panel under arbitrary boundary conditions

Zhu, Ziyuan; Wang, Gang; Sheng, Zhehao; Zhang, Yongfeng; Xu, Ruikang

doi:10.1016/j.ymssp.2023.110810

Cited by 4 publications

(1 citation statement)

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“…The issues of vibration isolation of systems require further detailed studies and empirical research, especially in the context of the development of materials engineering, regarding e.g. : nanoparticles and composite structures [3,6], coating on fiber insolation of thermal and vibration processes [10,21], external composite systems [25], acoustic metamaterials for low-frequency broadband vibration and sound insulation [31,32], composites structures studied for specified boundary conditions [34].…”

Section: Fd Fdmentioning

confidence: 99%

Assessment of the effectiveness of mounting the aircraft piston combustion engine on a test stand

Szymański,

Waligórski,

Misztal

2024

Combustion Engines

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The subject of the considerations described in the paper is the problem of efficiency of mounting an aircraft engine on a dyno test bench. The paper presents the empirical research results of vibroacoustic signal application to the evaluation of correctness of positioning of the Rotax 912 piston aircraft engine. The variability of selected parameters and vibroacoustic characteristics for real engine operating conditions was assessed, and functional relations and their discrete representations were developed, reflecting the efficiency of mounting the object on the frame. Thanks to this process, quantitative measures of the diagnostic assessment of the object were obtained, which can be used in periodic or continuous operational control of the object, taking into account the impact of tribological processes taking place in the test object.

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