Flexural wave bandgap properties of phononic crystal beams with interval parameters
نویسندگان
چکیده
Abstract Uncertainties are unavoidable in practical engineering, and phononic crystals no exception. In this paper, the uncertainties treated as interval parameters, an crystal beam model is established. A perturbation-based finite element method (P-IFEM) affine-based (A-IFEM) proposed to study dynamic response of beam, based on which vibration transmission analysis can be easily implemented safe bandgap defined. Finally, two numerical examples investigated demonstrate effectiveness accuracy P-IFEM A-IFEM. Results show that range may even decrease by 10% compared with deterministic without considering uncertainties.
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ژورنال
عنوان ژورنال: Applied Mathematics and Mechanics-english Edition
سال: 2023
ISSN: ['0253-4827', '1573-2754']
DOI: https://doi.org/10.1007/s10483-023-2947-8