Experimental Identification of Overall Structural Damping of System

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RADOIČIĆ, Goran ;JOVANOVIĆ, Miomir .
Experimental Identification of Overall Structural Damping of System. 
Strojniški vestnik - Journal of Mechanical Engineering, [S.l.], v. 59, n.4, p. 260-268, june 2018. 
ISSN 0039-2480.
Available at: <https://www.sv-jme.eu/article/experimental-identification-of-overall-structural-damping-of-system/>. Date accessed: 09 apr. 2020. 
doi:http://dx.doi.org/10.5545/sv-jme.2012.569.
Radoičić, G., & Jovanović, M.
(2013).
Experimental Identification of Overall Structural Damping of System.
Strojniški vestnik - Journal of Mechanical Engineering, 59(4), 260-268.
doi:http://dx.doi.org/10.5545/sv-jme.2012.569
@article{sv-jmesv-jme.2012.569,
	author = {Goran  Radoičić and Miomir  Jovanović},
	title = {Experimental Identification of Overall Structural Damping of System},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {59},
	number = {4},
	year = {2013},
	keywords = {tower crane, truss structure, structural damping, transient response, large amplitude},
	abstract = {The dynamic behaviour of large and complex structures largely depends on damping resistance in the structure. A portion of the structural energy is lost to deformations in material, friction between the contact surfaces, and relative motion within the structure. Often, in an analysis of numerical models, before the dynamic analysis of transient events (transient analysis), the damping resistance is adopted on the basis of recommendations, which implies an error of transient response (introduced by frequencies, logarithmic decrements and maximal amplitudes). Decreasing amortized vibratory movement is dependent on the extent of the structural damping. This paper presents the importance of structural damping in structural analysis and shows the experimental and theoretical procedure for identifying G values of the structural damping coefficient. A model for determining the G coefficient is shown in the example of a real tower crane structure. The experimentally obtained values were then used in the transient numerical FEM analysis, as the basis for adopting the conclusions about the dynamic behaviour of this class of structures (transportation machines). The effect of the external perturbation force of trapezoidal impulse form (lifting and quickly lowering of load) is introduced and the dynamic task, as an example of the use of the G coefficient G, is solved. The experimentally determined damping (theoretically isolated for tall truss structures) can be used in similar transient analyses.},
	issn = {0039-2480},	pages = {260-268},	doi = {10.5545/sv-jme.2012.569},
	url = {https://www.sv-jme.eu/article/experimental-identification-of-overall-structural-damping-of-system/}
}
Radoičić, G.,Jovanović, M.
2013 June 59. Experimental Identification of Overall Structural Damping of System. Strojniški vestnik - Journal of Mechanical Engineering. [Online] 59:4
%A Radoičić, Goran 
%A Jovanović, Miomir 
%D 2013
%T Experimental Identification of Overall Structural Damping of System
%B 2013
%9 tower crane, truss structure, structural damping, transient response, large amplitude
%! Experimental Identification of Overall Structural Damping of System
%K tower crane, truss structure, structural damping, transient response, large amplitude
%X The dynamic behaviour of large and complex structures largely depends on damping resistance in the structure. A portion of the structural energy is lost to deformations in material, friction between the contact surfaces, and relative motion within the structure. Often, in an analysis of numerical models, before the dynamic analysis of transient events (transient analysis), the damping resistance is adopted on the basis of recommendations, which implies an error of transient response (introduced by frequencies, logarithmic decrements and maximal amplitudes). Decreasing amortized vibratory movement is dependent on the extent of the structural damping. This paper presents the importance of structural damping in structural analysis and shows the experimental and theoretical procedure for identifying G values of the structural damping coefficient. A model for determining the G coefficient is shown in the example of a real tower crane structure. The experimentally obtained values were then used in the transient numerical FEM analysis, as the basis for adopting the conclusions about the dynamic behaviour of this class of structures (transportation machines). The effect of the external perturbation force of trapezoidal impulse form (lifting and quickly lowering of load) is introduced and the dynamic task, as an example of the use of the G coefficient G, is solved. The experimentally determined damping (theoretically isolated for tall truss structures) can be used in similar transient analyses.
%U https://www.sv-jme.eu/article/experimental-identification-of-overall-structural-damping-of-system/
%0 Journal Article
%R 10.5545/sv-jme.2012.569
%& 260
%P 9
%J Strojniški vestnik - Journal of Mechanical Engineering
%V 59
%N 4
%@ 0039-2480
%8 2018-06-28
%7 2018-06-28
Radoičić, Goran, & Miomir  Jovanović.
"Experimental Identification of Overall Structural Damping of System." Strojniški vestnik - Journal of Mechanical Engineering [Online], 59.4 (2013): 260-268. Web.  09 Apr. 2020
TY  - JOUR
AU  - Radoičić, Goran 
AU  - Jovanović, Miomir 
PY  - 2013
TI  - Experimental Identification of Overall Structural Damping of System
JF  - Strojniški vestnik - Journal of Mechanical Engineering
DO  - 10.5545/sv-jme.2012.569
KW  - tower crane, truss structure, structural damping, transient response, large amplitude
N2  - The dynamic behaviour of large and complex structures largely depends on damping resistance in the structure. A portion of the structural energy is lost to deformations in material, friction between the contact surfaces, and relative motion within the structure. Often, in an analysis of numerical models, before the dynamic analysis of transient events (transient analysis), the damping resistance is adopted on the basis of recommendations, which implies an error of transient response (introduced by frequencies, logarithmic decrements and maximal amplitudes). Decreasing amortized vibratory movement is dependent on the extent of the structural damping. This paper presents the importance of structural damping in structural analysis and shows the experimental and theoretical procedure for identifying G values of the structural damping coefficient. A model for determining the G coefficient is shown in the example of a real tower crane structure. The experimentally obtained values were then used in the transient numerical FEM analysis, as the basis for adopting the conclusions about the dynamic behaviour of this class of structures (transportation machines). The effect of the external perturbation force of trapezoidal impulse form (lifting and quickly lowering of load) is introduced and the dynamic task, as an example of the use of the G coefficient G, is solved. The experimentally determined damping (theoretically isolated for tall truss structures) can be used in similar transient analyses.
UR  - https://www.sv-jme.eu/article/experimental-identification-of-overall-structural-damping-of-system/
@article{{sv-jme}{sv-jme.2012.569},
	author = {Radoičić, G., Jovanović, M.},
	title = {Experimental Identification of Overall Structural Damping of System},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {59},
	number = {4},
	year = {2013},
	doi = {10.5545/sv-jme.2012.569},
	url = {https://www.sv-jme.eu/article/experimental-identification-of-overall-structural-damping-of-system/}
}
TY  - JOUR
AU  - Radoičić, Goran 
AU  - Jovanović, Miomir 
PY  - 2018/06/28
TI  - Experimental Identification of Overall Structural Damping of System
JF  - Strojniški vestnik - Journal of Mechanical Engineering; Vol 59, No 4 (2013): Strojniški vestnik - Journal of Mechanical Engineering
DO  - 10.5545/sv-jme.2012.569
KW  - tower crane, truss structure, structural damping, transient response, large amplitude
N2  - The dynamic behaviour of large and complex structures largely depends on damping resistance in the structure. A portion of the structural energy is lost to deformations in material, friction between the contact surfaces, and relative motion within the structure. Often, in an analysis of numerical models, before the dynamic analysis of transient events (transient analysis), the damping resistance is adopted on the basis of recommendations, which implies an error of transient response (introduced by frequencies, logarithmic decrements and maximal amplitudes). Decreasing amortized vibratory movement is dependent on the extent of the structural damping. This paper presents the importance of structural damping in structural analysis and shows the experimental and theoretical procedure for identifying G values of the structural damping coefficient. A model for determining the G coefficient is shown in the example of a real tower crane structure. The experimentally obtained values were then used in the transient numerical FEM analysis, as the basis for adopting the conclusions about the dynamic behaviour of this class of structures (transportation machines). The effect of the external perturbation force of trapezoidal impulse form (lifting and quickly lowering of load) is introduced and the dynamic task, as an example of the use of the G coefficient G, is solved. The experimentally determined damping (theoretically isolated for tall truss structures) can be used in similar transient analyses.
UR  - https://www.sv-jme.eu/article/experimental-identification-of-overall-structural-damping-of-system/
Radoičić, Goran, AND Jovanović, Miomir.
"Experimental Identification of Overall Structural Damping of System" Strojniški vestnik - Journal of Mechanical Engineering [Online], Volume 59 Number 4 (28 June 2018)

Authors

Affiliations

  • University of Niš, Faculty of Mechanical Engineering, Serbia 1

Paper's information

Strojniški vestnik - Journal of Mechanical Engineering 59(2013)4, 260-268

https://doi.org/10.5545/sv-jme.2012.569

The dynamic behaviour of large and complex structures largely depends on damping resistance in the structure. A portion of the structural energy is lost to deformations in material, friction between the contact surfaces, and relative motion within the structure. Often, in an analysis of numerical models, before the dynamic analysis of transient events (transient analysis), the damping resistance is adopted on the basis of recommendations, which implies an error of transient response (introduced by frequencies, logarithmic decrements and maximal amplitudes). Decreasing amortized vibratory movement is dependent on the extent of the structural damping. This paper presents the importance of structural damping in structural analysis and shows the experimental and theoretical procedure for identifying G values of the structural damping coefficient. A model for determining the G coefficient is shown in the example of a real tower crane structure. The experimentally obtained values were then used in the transient numerical FEM analysis, as the basis for adopting the conclusions about the dynamic behaviour of this class of structures (transportation machines). The effect of the external perturbation force of trapezoidal impulse form (lifting and quickly lowering of load) is introduced and the dynamic task, as an example of the use of the G coefficient G, is solved. The experimentally determined damping (theoretically isolated for tall truss structures) can be used in similar transient analyses.

tower crane, truss structure, structural damping, transient response, large amplitude