4.7 Article

Global Sound Absorption Prediction for a Composite Coating Laid on an Underwater Submersible in Debonding States

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Engineering, Marine

Study on the Low-Frequency and Broadband Sound Absorption Performance of an Underwater Anechoic Layer with Novel Design

Jinshun Hu et al.

Summary: In order to enhance the low-frequency broadband sound absorption capability of the underwater anechoic layer (UAL) on the surface of marine equipment, a novel sound absorption structure with cavities (NSSC) is proposed by incorporating resonators and honeycombs into the traditional sound absorption structure with cavities (SSC). The design aims to enable more viscoelastic material to dissipate acoustic energy through shear dissipation. The accuracy of finite element calculations is verified using an approximate multilayer sound absorption theoretical model based on the modified transfer matrix method. The NSSC achieves a sound absorption coefficient (alpha) of 0.8 in the frequency range of 1100 Hz-10,000 Hz. The effects of cylindrical oscillators and honeycomb structures on sound absorption are discussed in detail, highlighting the importance of expanding the effective sound absorption range of the damping area for improving wideband sound absorption.

JOURNAL OF MARINE SCIENCE AND ENGINEERING (2023)

Article Computer Science, Interdisciplinary Applications

A machine learning accelerated inverse design of underwater acoustic polyurethane coatings

Hansani Weeratunge et al.

Summary: A detailed protocol for accelerated inverse design of acoustic coatings for underwater sound attenuation is proposed by coupling Machine Learning and an optimization algorithm with FEM models. Utilizing a Deep Neural Network as a surrogate model significantly speeds up prediction compared to FEM models, leading to optimally configured cylindrical void layers for low-frequency attenuation. This method enables efficient exploration of the design space for underwater acoustic coatings compared to traditional trial-and-error approaches.

STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION (2022)

Article Materials Science, Multidisciplinary

Variational autoencoder-based topological optimization of an anechoic coating: An efficient- and neural network-based design

Yiping Sun et al.

Summary: This paper investigates a VAE model-based topology optimization method for optimizing the cavity structure of anechoic coatings. The finite-element method is used to calculate the sound absorption coefficient, and the VAE model is trained to learn the key features of an anechoic coating. The method efficiently generates new anechoic coatings with specific sound absorption properties.

MATERIALS TODAY COMMUNICATIONS (2022)

Article Acoustics

Optimization Design of Acoustic Performance of Underwater Anechoic Coatings

Shuailong Zhou et al.

Summary: The reliability of the finite element method (FEM) has been verified by comparing the simulation results with the theoretical solutions based on the transfer matrix theory (TMT). The sound absorption performance of the coating has been improved by optimizing the coating structure and material parameters.

ACOUSTICS AUSTRALIA (2022)

Article Acoustics

A hybrid acoustic structure for low-frequency and broadband underwater sound absorption

Xinyu Jia et al.

Summary: The underwater anechoic coating with local resonant units is an effective method for low-frequency sound absorption, and embedding them in FGMs can improve the low-frequency and broadband sound absorption performance of the structure.

JOURNAL OF LOW FREQUENCY NOISE VIBRATION AND ACTIVE CONTROL (2022)

Article Acoustics

Underwater sound absorption of a meta-absorption layer with double negativity

Ting Wang et al.

Summary: An underwater meta-absorption layer (MAPA) composed of multiple steel scatters and a rubber matrix is capable of achieving double negativity within multiple frequency ranges and exhibits effective sound absorption. Increasing the number of scatters, length of scatters, and damping can enhance sound absorption. The research has promising potential for underwater sound absorption in underwater vehicles.

APPLIED ACOUSTICS (2021)

Article Mechanics

A novel semi-analytical approach for predicting the sound absorptions of a new underwater composite coating with transversely arranged SWCNTs

Zhifu Zhang et al.

Summary: This paper introduces a new underwater composite coating with transversely arranged single-walled carbon nanotubes to broaden the lower frequency limit of sound absorption and improve the broadband absorption bandwidth. A novel semi-analytical approach integrating molecular dynamics simulation methodology and global generalized transfer matrix method is proposed to predict the sound absorption characteristics. The study explores the influence laws of ten critical parameters on sound absorption coefficients to reveal multiple energy-dissipation mechanisms.

COMPOSITE STRUCTURES (2021)

Article Materials Science, Multidisciplinary

Low-frequency broadband absorption of semi-active composite anechoic coating with subwavelength piezoelectric arrays in hydrostatic environments

Zhifu Zhang et al.

Summary: This paper proposes a global four-terminal acoustic theoretical prediction method for a semi-active composite coating with subwavelength piezoelectric arrays in deep-sea environment, aiming to explore energy dissipation mechanisms and broaden low-frequency sound-absorbing bandwidth. Through simulations and experiments, the effectiveness of the method and the influences of factors are validated.

RESULTS IN PHYSICS (2021)

Review Materials Science, Characterization & Testing

A review on polymer-based materials for underwater sound absorption

Yifeng Fu et al.

Summary: The study reviews different types of polymer-based underwater sound absorption materials, including IPN, polymer foams, and gradient polymers. It also discusses methods to transform polymers into underwater sound absorption materials by introducing different types of inclusions. The article also presents the challenges in developing better polymer acoustic materials to meet the requirements of underwater applications.

POLYMER TESTING (2021)

Article Acoustics

An equivalent method for predicting acoustic scattering of coated shell using identified viscoelastic parameters of anechoic coating

Yibo Ke et al.

Summary: This study proposes a novel method to identify the viscoelastic parameters of underwater anechoic coating, which utilizes a combination of finite element method and Newton's iterative method. An equivalent method is developed to predict the acoustic scattering performance of coated shell, showing good agreement with a direct finite element model and significantly reducing computational expenses.

APPLIED ACOUSTICS (2021)

Article Materials Science, Multidisciplinary

A novel semi-analytical methodology for predicting sound absorption of anechoic coatings with arbitrary rotary cavities dependent on temperature and frequency

Zhifu Zhang et al.

Summary: In this paper, a novel semi-analytical methodology is proposed to predict the dynamic sound absorptions of a covering accurately and effectively in a wide temperature-frequency range. The theoretical model is validated experimentally and reveals multiple energy dissipation mechanisms.

RESULTS IN PHYSICS (2021)

Article Acoustics

Acoustic performance of periodic steel cylinders embedded in a viscoelastic medium

Gyani Shankar Sharma et al.

JOURNAL OF SOUND AND VIBRATION (2019)

Article Materials Science, Multidisciplinary

Underwater sound absorption performance of acoustic metamaterials with multilayered locally resonant scatterers

Kangkang Shi et al.

RESULTS IN PHYSICS (2019)

Proceedings Paper Acoustics

Research on sound absorption characteristics of Alberich anechoic coatings in debonding states

Xianwen Zhao et al.

2ND FRANCO-CHINESE ACOUSTIC CONFERENCE (FCAC 2018) (2019)

Article Acoustics

Influence of hole shape on sound absorption of underwater anechoic layers

Changzheng Ye et al.

JOURNAL OF SOUND AND VIBRATION (2018)

Proceedings Paper Energy & Fuels

Effects of catalysts on combustion characteristics and kinetics of coal-char blends

Yingjie Hu et al.

2018 ASIA CONFERENCE ON ENERGY AND ENVIRONMENT ENGINEERING (ACEEE 18) (2018)

Article Acoustics

Sound absorption of a rib-stiffened plate covered by anechoic coatings

Xinyi Fu et al.

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA (2015)

Proceedings Paper Engineering, Chemical

Modeling and simulation of underwater acoustic absorption properties of novel macroporous resins - elastorner thin coatings

Weihong Sun et al.

CHEMICAL, MATERIAL AND METALLURGICAL ENGINEERING III, PTS 1-3 (2014)

Article Acoustics

Anechoic coatings obtained from two- and three-dimensional monopole resonance diffraction gratings

Sven M. Ivansson

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA (2012)

Article Acoustics

Analysis of absorption performances of anechoic layers with steel plate backing

Hao Meng et al.

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA (2012)

Article Acoustics

Vibro-acoustic response of an infinite, rib-stiffened, thick-plate assembly using finite-element analysis

Marcel C. Remillieux et al.

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA (2012)

Article Acoustics

Numerical design of Alberich anechoic coatings with superellipsoidal cavities of mixed sizes

Sven M. Ivansson

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA (2008)