Manufacturing defects in composite flanges: modelling and analysis of influence on static strength

Anoshkin, A. N.; Zuiko, V Yu; Ю, Зуйко В; Osokin, V. M.; Tretyakov, А. А.; Третьяков, А. А.; Pisarev, P. V.

doi:10.15593/perm.mech/2016.2.01

Cited by 2 publications

(1 citation statement)

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“…Experimental studies of the developed SAS are also limited to testing only small-sized samples. As a result, when creating a full-scale SAS design, its acoustic characteristics in practice significantly differ from those predicted in the design [4]. This requires a long and expensive modification of the design already at the stage of its introduction into serial production [5].…”

Section: Introductionmentioning

confidence: 99%

Numerical study of the acoustic efficiency of a group of Helmholtz resonators of various configurations

Pisarev

Anoshkin

2018

MATEC Web Conf.

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In this work the physical and mathematical models of predicting the effective acoustic properties of sound absorbing structures (Helmholtz resonators) in joint operation were formulated. Numerical simulation has been performed on the modeling of an acoustic wave in a model channel with resonators of various configurations. Research was carried out to optimize the mutual arrangement of Helmholtz cells (resonators) in sound-absorbing structures of resonant type. According to the results of the research, the mutual influence of closely located prismatic resonators in the model channel of rectangular shape was revealed. The most effective combinations of prismatic resonators were determined. Schemes and recommendations for the placement of composite and base resonators in sound-absorbing structures were developed. Unique single-layer composite sound-absorbing structures, working at several resonant frequencies, were developed. , 0 (2018) MATEC Web of Conferences

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Section: Introductionmentioning

confidence: 99%