NONPARAMETRIC SYSTEM IDENTIFICATION OF A CANTILEVER BEAM MODEL WITH LOCAL NONLINEARITY IN THE PRESENCE OF ARTIFICIAL NOISE

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

HOMAYOUN SADEGHI MORTEZA; LOTFAN SAEED

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Modares Mechanical Engineering Year:2017 | Volume:16 | Issue:11 Page(s): 177-186

Download Full-Text

Persian Verion

View:

716

Download:

Cites:

Information Journal Paper

Title

NONPARAMETRIC SYSTEM IDENTIFICATION OF A CANTILEVER BEAM MODEL WITH LOCAL NONLINEARITY IN THE PRESENCE OF ARTIFICIAL NOISE

Author(s)

HOMAYOUN SADEGHI MORTEZA | LOTFAN SAEED | Issue Writer Certificate

Keywords

NONLINEAR SYSTEM IDENTIFICATIONQ1

LOCAL NONLINEARITYQ1

ADVANCED EMPIRICAL MODE DECOMPOSITIONQ1

NONLINEAR INTERACTION MODELQ1

Abstract

In this paper the effect of artificial noise on the performance of NONLINEAR SYSTEM IDENTIFICATION method in reconstructing the response of a cantilever beam model having LOCAL NONLINEARITY is investigated. For this purpose, the weak form equation governing the transverse vibration of a linear beam having a strongly nonlinear spring at the end is discretized by using Rayleigh-Ritz approach. Then, the derived equations are solved via Rung-Kutta method and the simulated response of the beam to impulse force is obtained. By contaminating the simulated response to artificial measurement noise, nonparametric NONLINEAR SYSTEM IDENTIFICATION is applied to reconstruct the response. Accordingly, intrinsic mode functions of the response are obtained by using ADVANCED EMPIRICAL MODE DECOMPOSITION, and NONLINEAR INTERACTION MODEL including intrinsic modal oscillators is constructed. Primary results show that the presence of noise in the response highly affects the sifting process which results in extraction of spurious intrinsic mode functions. In order to eradicate the effect of noise on this process, noise signals are used as masking signals in the ADVANCED EMPIRICAL MODE DECOMPOSITION method and intrinsic mode functions corresponding to the noise are extracted. Based on this approach, the dynamic of the noise in the response is identified and noise reduced signals are reconstructed by the intrinsic modal oscillators with suitable accuracy.

Cites

No record.

References

No record.

Cite

APA: Copy

HOMAYOUN SADEGHI, MORTEZA, & LOTFAN, SAEED. (2017). NONPARAMETRIC SYSTEM IDENTIFICATION OF A CANTILEVER BEAM MODEL WITH LOCAL NONLINEARITY IN THE PRESENCE OF ARTIFICIAL NOISE. MODARES MECHANICAL ENGINEERING, 16(11 ), 177-186. SID. https://sid.ir/paper/178894/en

Vancouver: Copy

HOMAYOUN SADEGHI MORTEZA, LOTFAN SAEED. NONPARAMETRIC SYSTEM IDENTIFICATION OF A CANTILEVER BEAM MODEL WITH LOCAL NONLINEARITY IN THE PRESENCE OF ARTIFICIAL NOISE. MODARES MECHANICAL ENGINEERING[Internet]. 2017;16(11 ):177-186. Available from: https://sid.ir/paper/178894/en

IEEE: Copy

MORTEZA HOMAYOUN SADEGHI, and SAEED LOTFAN, “NONPARAMETRIC SYSTEM IDENTIFICATION OF A CANTILEVER BEAM MODEL WITH LOCAL NONLINEARITY IN THE PRESENCE OF ARTIFICIAL NOISE,” MODARES MECHANICAL ENGINEERING, vol. 16, no. 11 , pp. 177–186, 2017, [Online]. Available: https://sid.ir/paper/178894/en

Related Journal Papers