On the balancing of structural and acoustic performance of a sandwich panel based on topology, property, and size optimization

Cameron, Christopher John; Nordgren, Eleonora Lind; Wennhage, Per; Göransson, Peter

doi:10.1016/j.jsv.2014.01.025

Cited by 24 publications

(16 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In [4], a compromise between the structural and acoustic characteristics of a car body panel is considered. The peculiarities of sound insulation of cars complicate its use in building structures.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Improvement of the method of calculating a group of soundinsulating panels

Bielikov

Mamontov

Papirnyk

et al. 2019

EEJET

View full text Add to dashboard Cite

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Improvement of the method of calculating a group of soundinsulating panels

Bielikov

Mamontov

Papirnyk

et al. 2019

EEJET

View full text Add to dashboard Cite

“…Tanneau et al [16] used a genetic algorithm to minimize the difference between the transmission loss spectrum of a package and an objective spectrum, while taking into account the weight of the package. Cameron et al [19] used a two-step optimization procedure on a sandwich structure. Both acoustic properties and structural properties were considered.…”

Section: Optimization Algorithms For Acoustic Materialsmentioning

confidence: 99%

An acoustic trade-off chart for the design of multilayer acoustic packages

2019

View full text Add to dashboard Cite

This paper presents a novel trade-off chart to support the design of multilayer acoustic packages. In this multi-objective problem, a designer has to specify a combination of layers from a set of available acoustic materials and thicknesses. Material types may include porous, mass-weighted, facing, among others. The combination must meet requirements in terms of sound absorption, sound transmission loss, cluttering, mass, etc. While predictions and analyses can be made on predetermined multilayer acoustic packages using the transfer matrix method, statistical energy analysis, finite elements methods or modal analysis, comparing a large number of possible combinations is cumbersome. On the other hand, optimization methods can be used to identify optimal thicknesses or material properties for a given layer combination, but the obtained solution may not be industrially relevant since, in general, only a limited set of acoustic materials and layer thicknesses exist commercially. In this paper, a new design methodology is proposed, which takes into account only the feasible combinations and provides guidelines for compromises between different performance parameters. The three-step methodology is demonstrated through a case study inspired by the automotive industry. First, relevant categories of layer configurations are defined, and following these patterns, all possible combinations of materials from a given inventory are calculated and stored in a database. Then, for selected performance parameters, the Pareto set of "better combinations" is identified. Finally, the "better solutions" are displayed on a trade-off chart through utility functions that allow weighing the different performance parameters. The tool developed for doing so is applied to the case study, and two example situations are presented. For each situation, the trade-off chart provides several suitable solutions, which are discussed. The use of this new tool effectively induces gains of time at the early stage of design, when it is most crucial.

show abstract

“…The great advantage of this approach is to propose simple macro-micro relationships which can Page 2 of 7 18/06/2018 be incorporated into complete vibro-acoustic finite element codes relaying on the Biot theory [11]. An illustration of such an approach is provided by recent works where the foam is no longer placed in a layer of its own but rather distributed in the core of the panel using topology optimization [12]. This approach is however limited by the fact that the trends suggested by numerical analysis can lead to nonmanufacturable foams.…”

Section: Introductionmentioning

confidence: 99%

An Overview of Microstructural Approaches for Modelling and Improving Sound Proofing Properties of Cellular Foams: Developments and Prospects

Perrot

Hoang

Chevillotte³

2018

SAE Technical Paper Series

View full text Add to dashboard Cite

Significant advances have been made over the last 15 years in the field of modelling the acoustic properties of foams from the description of their microstructures. It entails a multidisciplinary work at the junction between physico-chemistry and mechanics of porous media, which involves a dialogue between different disciplines and requires the joint development of several techniques (imaging, upscaling, numerical computations, and experimental identification). It seems to be of timely interest to take stock of the methodological developments that have provided guidance on how to manufacture the new generation of foams with enhanced properties and to identify possible future methodological developments.

show abstract

On the balancing of structural and acoustic performance of a sandwich panel based on topology, property, and size optimization

Cited by 24 publications

References 29 publications

Improvement of the method of calculating a group of soundinsulating panels

Improvement of the method of calculating a group of soundinsulating panels

An acoustic trade-off chart for the design of multilayer acoustic packages

An Overview of Microstructural Approaches for Modelling and Improving Sound Proofing Properties of Cellular Foams: Developments and Prospects

Contact Info

Product

Resources

About

On the balancing of structural and acoustic performance of a sandwich panel based on topology, property, and size optimization

Cited by 24 publications

References 29 publications

Improvement of the method of calculating a group of sound­insulating panels

Improvement of the method of calculating a group of sound­insulating panels

An acoustic trade-off chart for the design of multilayer acoustic packages

An Overview of Microstructural Approaches for Modelling and Improving Sound Proofing Properties of Cellular Foams: Developments and Prospects

Contact Info

Product

Resources

About

Improvement of the method of calculating a group of soundinsulating panels

Improvement of the method of calculating a group of soundinsulating panels