Acoustic properties of glass fiber assembly-filled honeycomb sandwich panels

Yang, Yong; Li, Binbin; Chen, Zhaofeng; Sui, Ni; Saeed, Muhammad Usman; Li, Yufang; Fu, Renli; Wu, Cao; Jing, Yun

doi:10.1016/j.compositesb.2016.04.046

Cited by 92 publications

(35 citation statements)

References 23 publications

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“…This combination of honeycomb and foam give the structure better mechanical property. Yang et al [62] investigated both numerically and experimentally the modal characteristics of cylindrical sandwich structure with foam-filled corrugated core. The curved and flat sandwich corrugated cores are illustrated in Figure 4.…”

Section: Sandwich Core Support Structuresmentioning

confidence: 99%

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Comparative Study of Sound Transmission Losses of Sandwich Composite Double Panel Walls

2020

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The increasing motivation behind the recently wide industrial applications of sandwich and composite double panel structures stems from their ability to absorb sounds more effectively. Meticulous selection of the geometrical and material constituents of both the core and panels of these structures can produce highly desirable properties. A good understanding of their vibro-acoustic response and emission index such as the sound transmission loss (STL) is, therefore, a requisite to producing optimal design. In this study, an overview of recent advances in STL of sandwich and composites double panels is presented. At first, some salient explanation of the various frequency and controlled regions are given. It then critically examines a number of parameter effects on the STL of sandwich and composite structures. Literatures on the numerical, analytical and experimental solutions of STL are systematically presented. Efficient and more reliable optimization problems that maximize the STL and minimize the objective functions capable of degrading the effectiveness of the structure to absorb sounds are also provided.

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Section: Sandwich Core Support Structuresmentioning

confidence: 99%

“…The curved and flat sandwich corrugated cores are illustrated in Figure 4. Yang et al [62] studied the STL of honeycomb sandwich DPS filled with glass fiber materials. The fiber materials were filled randomly and in a ball-like structure.…”

Section: Sandwich Core Support Structuresmentioning

confidence: 99%

Comparative Study of Sound Transmission Losses of Sandwich Composite Double Panel Walls

2020

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“…Yang et al prepared super‐fine glass fibers modified honeycomb sandwich panel to enhance the noise reduction performance. Results indicated the sound insulation property of honeycomb sandwich panel enhanced by super‐fine glass fibers has a prominently improvement at frequency below 4500 Hz . Xue et al prepared epoxy composites consisting of multilayered ultrafine glass fiber felts.…”

Section: Introductionmentioning

confidence: 99%

“…Results indicated the sound insulation property of honeycomb sandwich panel enhanced by super-fine glass fibers has a prominently improvement at frequency below 4500 Hz. [20] Xue et al prepared epoxy composites consisting of multilayered ultrafine glass fiber felts. The incorporation of ultrafine glass fiber felts greatly enhanced the sound absorption and sound insulation properties.…”

Section: Introductionmentioning

confidence: 99%

Effect of crossing film among glass fibers on blanket performance

Chen

Wang

et al. 2019

Polymer Composites

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An effective film construction was provided as a noise‐reducing materials based on self‐assembled polymer film supported by ultralight glass fiber blanket (UGFB) skeleton. The synthesized polymer film enhanced UGFB structure shows about 60% improvement over a broad frequencies compared to neat UGFB. The sound transmission loss has a remarkably increasing of 16.59 dB at 4 kHz. The reinforced acoustic performances was created by the structural optimization of UGFB/UMPR‐film, owing to the observably enhanced tortuosity in sound waves transmission and reinforced surface area, which can induce more viscous and thermal losses when the acoustic wave consumes in the semiopen pore construction. Moreover, the UGFB/UMPR‐film demonstrates 7.4 times increasing in breaking strength (width direction) and the degrees of uniformity lower than 0.0771. The manufacture of this new acoustic damping materials is low cost, structural controllable, and easy to large‐scale preparation, making it can be applied in multitudinous applications.

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“…Composites can be analyzed using established nondestructive testing (NDT) methods, such as X-ray [2], ultrasound [3], acoustics [4] or thermographic [5] techniques, but alternative methods are sought to meet the demands of new materials such as lightweight honeycomb composites. So far, the most common technique for puncture examination in composites is X-ray computed tomography (CT).…”

mentioning

confidence: 99%

An Infrared-Induced Terahertz Imaging Modality for Foreign Object Detection in a Lightweight Honeycomb Composite Structure

Zhang

Сфарра

Osman

et al. 2018

IEEE Trans. Ind. Inf.

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In this paper, terahertz time-domain spectroscopy (THz-TDS) is used for the first time to detect fabricated defects in a glass fiber-skinned lightweight honeycomb composite panel. A novel amplitude polynomial regression (APR) algorithm is proposed as a pre-processing method. This method segments the amplitude-frequency curves to simulate the heating and the cooling monotonic behavior as in infrared thermography. Then, the method of empirical orthogonal function (EOF) imaging is applied on the APR pre-processed data as a post-processing algorithm. Signal-to-noise ratio analysis is performed to verify the image improvement of the proposed APR-EOF modality from a quantitative point of view. Finally, the experimental results and the physical analysis show that THz is more suitable with respect to the detection of defects in glass fiber lightweight honeycomb composites.

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Acoustic properties of glass fiber assembly-filled honeycomb sandwich panels

Cited by 92 publications

References 23 publications

Comparative Study of Sound Transmission Losses of Sandwich Composite Double Panel Walls

Comparative Study of Sound Transmission Losses of Sandwich Composite Double Panel Walls

Effect of crossing film among glass fibers on blanket performance

An Infrared-Induced Terahertz Imaging Modality for Foreign Object Detection in a Lightweight Honeycomb Composite Structure

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