Optimization of sound transmission through laminated composite cylindrical shells by using a genetic algorithm

Shojaeifard, M H; Talebitooti, Roohollah; Yadollahi, Azadeh

doi:10.1007/s11029-011-9225-7

Cited by 12 publications

(5 citation statements)

References 22 publications

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“…Optimization is a design method to improve sound insulation, and the optimization of traditional sound insulation wall panels [71,73,74,[138][139][140][141][142][143], as well as metamaterial topology optimization [144], has received increasing attention. Similarly, researchers have combined optimization methods with fixed structures to optimize the sound insulation performance in the frequency band of interest for membrane-type metamaterials.…”

Section: Optimizationmentioning

confidence: 99%

Research Progress on Thin-Walled Sound Insulation Metamaterial Structures

Zhang,

et al. 2024

Acoustics

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Acoustic metamaterials (AMs) composed of periodic artificial structures have extraordinary sound wave manipulation capabilities compared with traditional acoustic materials, and they have attracted widespread research attention. The sound insulation performance of thin-walled structures commonly used in engineering applications with restricted space, for example, vehicles’ body structures, and the latest studies on the sound insulation of thin-walled metamaterial structures, are comprehensively discussed in this paper. First, the definition and math law of sound insulation are introduced, alongside the primary methods of sound insulation testing of specimens. Secondly, the main sound insulation acoustic metamaterial structures are summarized and classified, including membrane-type, plate-type, and smart-material-type sound insulation metamaterials, boundaries, and temperature effects, as well as the sound insulation research on composite structures combined with metamaterial structures. Finally, the research status, challenges, and trends of sound insulation metamaterial structures are summarized. It was found that combining the advantages of metamaterial and various composite panel structures with optimization methods considering lightweight and proper wide frequency band single evaluator has the potential to improve the sound insulation performance of composite metamaterials in the full frequency range. Relative review results provide a comprehensive reference for the sound insulation metamaterial design and application.

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Section: Optimizationmentioning

confidence: 99%

Research Progress on Thin-Walled Sound Insulation Metamaterial Structures

Zhang,

et al. 2024

Acoustics

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“…The research by Shojaeifard et al [16] began by explaining the theory behind the acoustic analysis of multilayer panels using the transfer matrix method. After comparing with the existing laboratory results in this field and ensuring the correctness of the modelling, in the next step, using this valid model, a multi-objective optimisation of the acoustic behaviour of the panel was carried out.…”

Section: Optimisation Of Sound Power Transaction Of Multi-wall Panels...mentioning

confidence: 99%

Application of Genetic Algorithms in Health Sciences

Fallah Madvari

2024

Genetic Algorithms - Theory, Design and Programming

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In this section, we introduce genetic algorithm (GA) and some of its applications in various health fields. Although GA and some other meta-heuristics are inspired by biology, they are more familiar to experts in other sciences, and these methods are often used to solve complex problems. The use of GAs has promising implications in various health specialities, including occupational health, environmental health, HSE, occupational medicine, industrial safety, ergonomics, toxicology, health care management, etc. This section of the book presents applications of GAs in disease screening, diagnosis, prognosis and health care management, and enables professionals to envision possible applications of this meta-heuristic method in their health professions. In the following, we discuss some applications of GAs in predicting, measuring and controlling factors that affect health.

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“…To maximize the objective function, for instance, the STL, the minimized objective function can be negated. Optimization techniques can be applied, therefore, on these structures to maximize their STL and reduce their weight as demonstrated by Shojaeifard et al [153] who used a genetic algorithm approach. Contemporary researchers have adopted the multi-objective optimization problem which involves the solution of a number of parameters capable of minimizing the objective functions and satisfying the sets of defined restrictions, or constraints.…”

Section: Optimization Of Sound Transmission Loss Of Double Panel Strumentioning

confidence: 99%

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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Optimization of sound transmission through laminated composite cylindrical shells by using a genetic algorithm

Cited by 12 publications

References 22 publications

Research Progress on Thin-Walled Sound Insulation Metamaterial Structures

Research Progress on Thin-Walled Sound Insulation Metamaterial Structures

Application of Genetic Algorithms in Health Sciences

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

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