Spatial-Mode-Shape Identification using a Continuous Wavelet Transform

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ČESNIK, Martin ;SLAVIČ, Janko ;BOLTEŽAR, Miha .
Spatial-Mode-Shape Identification using a Continuous Wavelet Transform. 
Strojniški vestnik - Journal of Mechanical Engineering, [S.l.], v. 55, n.5, p. 277-285, august 2017. 
ISSN 0039-2480.
Available at: <https://www.sv-jme.eu/article/spatial-mode-shape-identification-using-a-continuous-wavelet-transform/>. Date accessed: 15 sep. 2019. 
doi:http://dx.doi.org/.
Česnik, M., Slavič, J., & Boltežar, M.
(2009).
Spatial-Mode-Shape Identification using a Continuous Wavelet Transform.
Strojniški vestnik - Journal of Mechanical Engineering, 55(5), 277-285.
doi:http://dx.doi.org/
@article{.,
	author = {Martin  Česnik and Janko  Slavič and Miha  Boltežar},
	title = {Spatial-Mode-Shape Identification using a Continuous Wavelet Transform},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {55},
	number = {5},
	year = {2009},
	keywords = {modal parameters; continuous wavelet transform; spatial vibrations; },
	abstract = {This paper presents an experimental modal analysis of a damped multi-degree-of-freedom mechanical system using a continuous wavelet transform. An approximation of the wavelet transform of the impulse response function is deduced, which serves as a basis for the extraction of the natural frequencies, the damping ratios and the mode shapes. Due to an approximation with a finite Taylor series, a computational error in the identified oscillatory amplitude occurs and  is observed for the simulated system response. The presented approach of modal identification is applied to real mechanical systems, such as a steel beam and the horizontal tail of an ultralight aircraft. Using the proposed measurement methodology, it is possible to reconstruct the spatial mode shapes of any dynamic linear system with an arbitrary geometry. },
	issn = {0039-2480},	pages = {277-285},	doi = {},
	url = {https://www.sv-jme.eu/article/spatial-mode-shape-identification-using-a-continuous-wavelet-transform/}
}
Česnik, M.,Slavič, J.,Boltežar, M.
2009 August 55. Spatial-Mode-Shape Identification using a Continuous Wavelet Transform. Strojniški vestnik - Journal of Mechanical Engineering. [Online] 55:5
%A Česnik, Martin 
%A Slavič, Janko 
%A Boltežar, Miha 
%D 2009
%T Spatial-Mode-Shape Identification using a Continuous Wavelet Transform
%B 2009
%9 modal parameters; continuous wavelet transform; spatial vibrations; 
%! Spatial-Mode-Shape Identification using a Continuous Wavelet Transform
%K modal parameters; continuous wavelet transform; spatial vibrations; 
%X This paper presents an experimental modal analysis of a damped multi-degree-of-freedom mechanical system using a continuous wavelet transform. An approximation of the wavelet transform of the impulse response function is deduced, which serves as a basis for the extraction of the natural frequencies, the damping ratios and the mode shapes. Due to an approximation with a finite Taylor series, a computational error in the identified oscillatory amplitude occurs and  is observed for the simulated system response. The presented approach of modal identification is applied to real mechanical systems, such as a steel beam and the horizontal tail of an ultralight aircraft. Using the proposed measurement methodology, it is possible to reconstruct the spatial mode shapes of any dynamic linear system with an arbitrary geometry. 
%U https://www.sv-jme.eu/article/spatial-mode-shape-identification-using-a-continuous-wavelet-transform/
%0 Journal Article
%R 
%& 277
%P 9
%J Strojniški vestnik - Journal of Mechanical Engineering
%V 55
%N 5
%@ 0039-2480
%8 2017-08-21
%7 2017-08-21
Česnik, Martin, Janko  Slavič, & Miha  Boltežar.
"Spatial-Mode-Shape Identification using a Continuous Wavelet Transform." Strojniški vestnik - Journal of Mechanical Engineering [Online], 55.5 (2009): 277-285. Web.  15 Sep. 2019
TY  - JOUR
AU  - Česnik, Martin 
AU  - Slavič, Janko 
AU  - Boltežar, Miha 
PY  - 2009
TI  - Spatial-Mode-Shape Identification using a Continuous Wavelet Transform
JF  - Strojniški vestnik - Journal of Mechanical Engineering
DO  - 
KW  - modal parameters; continuous wavelet transform; spatial vibrations; 
N2  - This paper presents an experimental modal analysis of a damped multi-degree-of-freedom mechanical system using a continuous wavelet transform. An approximation of the wavelet transform of the impulse response function is deduced, which serves as a basis for the extraction of the natural frequencies, the damping ratios and the mode shapes. Due to an approximation with a finite Taylor series, a computational error in the identified oscillatory amplitude occurs and  is observed for the simulated system response. The presented approach of modal identification is applied to real mechanical systems, such as a steel beam and the horizontal tail of an ultralight aircraft. Using the proposed measurement methodology, it is possible to reconstruct the spatial mode shapes of any dynamic linear system with an arbitrary geometry. 
UR  - https://www.sv-jme.eu/article/spatial-mode-shape-identification-using-a-continuous-wavelet-transform/
@article{{}{.},
	author = {Česnik, M., Slavič, J., Boltežar, M.},
	title = {Spatial-Mode-Shape Identification using a Continuous Wavelet Transform},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {55},
	number = {5},
	year = {2009},
	doi = {},
	url = {https://www.sv-jme.eu/article/spatial-mode-shape-identification-using-a-continuous-wavelet-transform/}
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TY  - JOUR
AU  - Česnik, Martin 
AU  - Slavič, Janko 
AU  - Boltežar, Miha 
PY  - 2017/08/21
TI  - Spatial-Mode-Shape Identification using a Continuous Wavelet Transform
JF  - Strojniški vestnik - Journal of Mechanical Engineering; Vol 55, No 5 (2009): Strojniški vestnik - Journal of Mechanical Engineering
DO  - 
KW  - modal parameters, continuous wavelet transform, spatial vibrations, 
N2  - This paper presents an experimental modal analysis of a damped multi-degree-of-freedom mechanical system using a continuous wavelet transform. An approximation of the wavelet transform of the impulse response function is deduced, which serves as a basis for the extraction of the natural frequencies, the damping ratios and the mode shapes. Due to an approximation with a finite Taylor series, a computational error in the identified oscillatory amplitude occurs and  is observed for the simulated system response. The presented approach of modal identification is applied to real mechanical systems, such as a steel beam and the horizontal tail of an ultralight aircraft. Using the proposed measurement methodology, it is possible to reconstruct the spatial mode shapes of any dynamic linear system with an arbitrary geometry. 
UR  - https://www.sv-jme.eu/article/spatial-mode-shape-identification-using-a-continuous-wavelet-transform/
Česnik, Martin, Slavič, Janko, AND Boltežar, Miha.
"Spatial-Mode-Shape Identification using a Continuous Wavelet Transform" Strojniški vestnik - Journal of Mechanical Engineering [Online], Volume 55 Number 5 (21 August 2017)

Authors

Affiliations

  • University of Ljubljana, Faculty of Mechanical Engineering, Slovenia
  • University of Ljubljana, Faculty of Mechanical Engineering, Slovenia
  • University of Ljubljana, Faculty of Mechanical Engineering, Slovenia

Paper's information

Strojniški vestnik - Journal of Mechanical Engineering 55(2009)5, 277-285

This paper presents an experimental modal analysis of a damped multi-degree-of-freedom mechanical system using a continuous wavelet transform. An approximation of the wavelet transform of the impulse response function is deduced, which serves as a basis for the extraction of the natural frequencies, the damping ratios and the mode shapes. Due to an approximation with a finite Taylor series, a computational error in the identified oscillatory amplitude occurs and  is observed for the simulated system response. The presented approach of modal identification is applied to real mechanical systems, such as a steel beam and the horizontal tail of an ultralight aircraft. Using the proposed measurement methodology, it is possible to reconstruct the spatial mode shapes of any dynamic linear system with an arbitrary geometry. 

modal parameters; continuous wavelet transform; spatial vibrations;