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Stochastic natural frequency of composite conical shells

Stochastic natural frequency of composite conical shells
Stochastic natural frequency of composite conical shells

The present study portrays the stochastic natural frequencies of laminated composite conical shells using a surrogate model (D-optimal design) approach. The rotary inertia and transverse shear deformation are incorporated in probabilistic finite element analysis with uncertainty due to variation in angle of twist. A sensitivity analysis is carried out to address the influence of different input parameters on the output natural frequencies. Typical fiber orientation angle and material properties are randomly varied to obtain the stochastic natural frequencies. The sampling size and computational cost are exorbitantly reduced by employing the present approach compared to direct Monte Carlo simulation. Statistical analysis is presented to illustrate the results. The stochastic natural frequencies obtained are the first known results for the type of analyses carried out here.

0001-5970
2537-2553
Dey, S.
493874d0-e414-4594-9a53-d1acdfd18c2d
Mukhopadhyay, T.
2ae18ab0-7477-40ac-ae22-76face7be475
Khodaparast, H. H.
dee3fcb4-accc-4bc0-944f-7c773efe616b
Adhikari, S.
82960baf-916c-496e-aa85-fc7de09a1626
Dey, S.
493874d0-e414-4594-9a53-d1acdfd18c2d
Mukhopadhyay, T.
2ae18ab0-7477-40ac-ae22-76face7be475
Khodaparast, H. H.
dee3fcb4-accc-4bc0-944f-7c773efe616b
Adhikari, S.
82960baf-916c-496e-aa85-fc7de09a1626

Dey, S., Mukhopadhyay, T., Khodaparast, H. H. and Adhikari, S. (2015) Stochastic natural frequency of composite conical shells. Acta Mechanica, 226 (8), 2537-2553. (doi:10.1007/s00707-015-1316-4).

Record type: Article

Abstract

The present study portrays the stochastic natural frequencies of laminated composite conical shells using a surrogate model (D-optimal design) approach. The rotary inertia and transverse shear deformation are incorporated in probabilistic finite element analysis with uncertainty due to variation in angle of twist. A sensitivity analysis is carried out to address the influence of different input parameters on the output natural frequencies. Typical fiber orientation angle and material properties are randomly varied to obtain the stochastic natural frequencies. The sampling size and computational cost are exorbitantly reduced by employing the present approach compared to direct Monte Carlo simulation. Statistical analysis is presented to illustrate the results. The stochastic natural frequencies obtained are the first known results for the type of analyses carried out here.

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More information

Published date: 20 August 2015
Additional Information: Publisher Copyright: © 2015, Springer-Verlag Wien.

Identifiers

Local EPrints ID: 483525
URI: http://eprints.soton.ac.uk/id/eprint/483525
ISSN: 0001-5970
PURE UUID: 362af8fd-1be6-46d7-bfe4-ef08b577c4e7

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Date deposited: 01 Nov 2023 17:51
Last modified: 18 Mar 2024 04:10

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Contributors

Author: S. Dey
Author: T. Mukhopadhyay
Author: H. H. Khodaparast
Author: S. Adhikari

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