Gear Vibrations in Supercritical Mesh-Frequency Range Caused by Teeth Impacts

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OGNJANOVIC, Milosav ;AGEMI, Fathi .
Gear Vibrations in Supercritical Mesh-Frequency Range Caused by Teeth Impacts. 
Strojniški vestnik - Journal of Mechanical Engineering, [S.l.], v. 56, n.10, p. 653-662, october 2017. 
ISSN 0039-2480.
Available at: <https://www.sv-jme.eu/article/gear-vibrations-in-supercritical-mesh-frequency-range-caused-by-teeth-impacts/>. Date accessed: 06 jun. 2020. 
doi:http://dx.doi.org/.
Ognjanovic, M., & Agemi, F.
(2010).
Gear Vibrations in Supercritical Mesh-Frequency Range Caused by Teeth Impacts.
Strojniški vestnik - Journal of Mechanical Engineering, 56(10), 653-662.
doi:http://dx.doi.org/
@article{.,
	author = {Milosav  Ognjanovic and Fathi  Agemi},
	title = {Gear Vibrations in Supercritical Mesh-Frequency Range Caused by Teeth Impacts},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {56},
	number = {10},
	year = {2010},
	keywords = {gears; vibration; singular system; frequency spectrum; },
	abstract = {After gear teeth impact, natural free vibrations arise, attenuating in a short period of time. Teeth impacts repeat with the frequency of teeth entering the mesh, vibrations become restorable, and restore with teeth mesh frequency. In the range of sub-critical teeth mesh frequency range these natural free vibrations are covered by forced vibrations caused by the fluctuation of teeth deformations. In the supercritical mesh frequency range, restorable free vibrations dominate in the frequency spectrum of gear system vibrations. These restorable free vibrations effectuate the increase of total vibration level with the speed of rotation increase. Also, in this frequency range the modal structure (natural frequency) of the gear system is not stable and effectuates super-critical resonances arising. Gear vibration measurements and frequency analysis (FFT-Analysis) are performed in very high speeds of gear rotations as high as 40,000 rpm. A mathematical model for experimental results synthesis is established. For this purpose, the theory of singular systems is used. Gear teeth mesh is treated as a singular system, with a continual process of load transmission with singularities caused by teeth impacts. Damping coefficients and energy attenuation is determined using the developed mathematical model.},
	issn = {0039-2480},	pages = {653-662},	doi = {},
	url = {https://www.sv-jme.eu/article/gear-vibrations-in-supercritical-mesh-frequency-range-caused-by-teeth-impacts/}
}
Ognjanovic, M.,Agemi, F.
2010 October 56. Gear Vibrations in Supercritical Mesh-Frequency Range Caused by Teeth Impacts. Strojniški vestnik - Journal of Mechanical Engineering. [Online] 56:10
%A Ognjanovic, Milosav 
%A Agemi, Fathi 
%D 2010
%T Gear Vibrations in Supercritical Mesh-Frequency Range Caused by Teeth Impacts
%B 2010
%9 gears; vibration; singular system; frequency spectrum; 
%! Gear Vibrations in Supercritical Mesh-Frequency Range Caused by Teeth Impacts
%K gears; vibration; singular system; frequency spectrum; 
%X After gear teeth impact, natural free vibrations arise, attenuating in a short period of time. Teeth impacts repeat with the frequency of teeth entering the mesh, vibrations become restorable, and restore with teeth mesh frequency. In the range of sub-critical teeth mesh frequency range these natural free vibrations are covered by forced vibrations caused by the fluctuation of teeth deformations. In the supercritical mesh frequency range, restorable free vibrations dominate in the frequency spectrum of gear system vibrations. These restorable free vibrations effectuate the increase of total vibration level with the speed of rotation increase. Also, in this frequency range the modal structure (natural frequency) of the gear system is not stable and effectuates super-critical resonances arising. Gear vibration measurements and frequency analysis (FFT-Analysis) are performed in very high speeds of gear rotations as high as 40,000 rpm. A mathematical model for experimental results synthesis is established. For this purpose, the theory of singular systems is used. Gear teeth mesh is treated as a singular system, with a continual process of load transmission with singularities caused by teeth impacts. Damping coefficients and energy attenuation is determined using the developed mathematical model.
%U https://www.sv-jme.eu/article/gear-vibrations-in-supercritical-mesh-frequency-range-caused-by-teeth-impacts/
%0 Journal Article
%R 
%& 653
%P 10
%J Strojniški vestnik - Journal of Mechanical Engineering
%V 56
%N 10
%@ 0039-2480
%8 2017-10-24
%7 2017-10-24
Ognjanovic, Milosav, & Fathi  Agemi.
"Gear Vibrations in Supercritical Mesh-Frequency Range Caused by Teeth Impacts." Strojniški vestnik - Journal of Mechanical Engineering [Online], 56.10 (2010): 653-662. Web.  06 Jun. 2020
TY  - JOUR
AU  - Ognjanovic, Milosav 
AU  - Agemi, Fathi 
PY  - 2010
TI  - Gear Vibrations in Supercritical Mesh-Frequency Range Caused by Teeth Impacts
JF  - Strojniški vestnik - Journal of Mechanical Engineering
DO  - 
KW  - gears; vibration; singular system; frequency spectrum; 
N2  - After gear teeth impact, natural free vibrations arise, attenuating in a short period of time. Teeth impacts repeat with the frequency of teeth entering the mesh, vibrations become restorable, and restore with teeth mesh frequency. In the range of sub-critical teeth mesh frequency range these natural free vibrations are covered by forced vibrations caused by the fluctuation of teeth deformations. In the supercritical mesh frequency range, restorable free vibrations dominate in the frequency spectrum of gear system vibrations. These restorable free vibrations effectuate the increase of total vibration level with the speed of rotation increase. Also, in this frequency range the modal structure (natural frequency) of the gear system is not stable and effectuates super-critical resonances arising. Gear vibration measurements and frequency analysis (FFT-Analysis) are performed in very high speeds of gear rotations as high as 40,000 rpm. A mathematical model for experimental results synthesis is established. For this purpose, the theory of singular systems is used. Gear teeth mesh is treated as a singular system, with a continual process of load transmission with singularities caused by teeth impacts. Damping coefficients and energy attenuation is determined using the developed mathematical model.
UR  - https://www.sv-jme.eu/article/gear-vibrations-in-supercritical-mesh-frequency-range-caused-by-teeth-impacts/
@article{{}{.},
	author = {Ognjanovic, M., Agemi, F.},
	title = {Gear Vibrations in Supercritical Mesh-Frequency Range Caused by Teeth Impacts},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {56},
	number = {10},
	year = {2010},
	doi = {},
	url = {https://www.sv-jme.eu/article/gear-vibrations-in-supercritical-mesh-frequency-range-caused-by-teeth-impacts/}
}
TY  - JOUR
AU  - Ognjanovic, Milosav 
AU  - Agemi, Fathi 
PY  - 2017/10/24
TI  - Gear Vibrations in Supercritical Mesh-Frequency Range Caused by Teeth Impacts
JF  - Strojniški vestnik - Journal of Mechanical Engineering; Vol 56, No 10 (2010): Strojniški vestnik - Journal of Mechanical Engineering
DO  - 
KW  - gears, vibration, singular system, frequency spectrum, 
N2  - After gear teeth impact, natural free vibrations arise, attenuating in a short period of time. Teeth impacts repeat with the frequency of teeth entering the mesh, vibrations become restorable, and restore with teeth mesh frequency. In the range of sub-critical teeth mesh frequency range these natural free vibrations are covered by forced vibrations caused by the fluctuation of teeth deformations. In the supercritical mesh frequency range, restorable free vibrations dominate in the frequency spectrum of gear system vibrations. These restorable free vibrations effectuate the increase of total vibration level with the speed of rotation increase. Also, in this frequency range the modal structure (natural frequency) of the gear system is not stable and effectuates super-critical resonances arising. Gear vibration measurements and frequency analysis (FFT-Analysis) are performed in very high speeds of gear rotations as high as 40,000 rpm. A mathematical model for experimental results synthesis is established. For this purpose, the theory of singular systems is used. Gear teeth mesh is treated as a singular system, with a continual process of load transmission with singularities caused by teeth impacts. Damping coefficients and energy attenuation is determined using the developed mathematical model.
UR  - https://www.sv-jme.eu/article/gear-vibrations-in-supercritical-mesh-frequency-range-caused-by-teeth-impacts/
Ognjanovic, Milosav, AND Agemi, Fathi.
"Gear Vibrations in Supercritical Mesh-Frequency Range Caused by Teeth Impacts" Strojniški vestnik - Journal of Mechanical Engineering [Online], Volume 56 Number 10 (24 October 2017)

Authors

Affiliations

  • University of Belgrade, Faculty of Mechanical Engineering, Serbia
  • Research and Development Centre, Libya

Paper's information

Strojniški vestnik - Journal of Mechanical Engineering 56(2010)10, 653-662

After gear teeth impact, natural free vibrations arise, attenuating in a short period of time. Teeth impacts repeat with the frequency of teeth entering the mesh, vibrations become restorable, and restore with teeth mesh frequency. In the range of sub-critical teeth mesh frequency range these natural free vibrations are covered by forced vibrations caused by the fluctuation of teeth deformations. In the supercritical mesh frequency range, restorable free vibrations dominate in the frequency spectrum of gear system vibrations. These restorable free vibrations effectuate the increase of total vibration level with the speed of rotation increase. Also, in this frequency range the modal structure (natural frequency) of the gear system is not stable and effectuates super-critical resonances arising. Gear vibration measurements and frequency analysis (FFT-Analysis) are performed in very high speeds of gear rotations as high as 40,000 rpm. A mathematical model for experimental results synthesis is established. For this purpose, the theory of singular systems is used. Gear teeth mesh is treated as a singular system, with a continual process of load transmission with singularities caused by teeth impacts. Damping coefficients and energy attenuation is determined using the developed mathematical model.

gears; vibration; singular system; frequency spectrum;