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Analysis of the dynamic characteristics of a gear-rotor-bearing system with external excitation
ID
Na, Risu
(
Author
),
ID
Jia, Kaifa
(
Author
),
ID
Miao, Shujing
(
Author
),
ID
Zhang, WeiGuo
(
Author
),
ID
Zhang, Quan
(
Author
)
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https://www.sv-jme.eu/sl/article/analysis-of-the-dynamic-characteristic-of-a-gear-rotor-bearing-system-with-external-excitation/
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Abstract
The dynamic response of the rotor system in a ring die granulator is complex and difficult to solve when it operates under joint external, support and gear mesh forces. To solve this problem, a finite element method and extrusion theory was applied in this study to develop a dynamic coupling model for a hollow overhung rotor with external load excitation. A Newmark-β numerical integration method was used to solve for the dynamic response of the overhung rotor under multiple excitation forces. The results included time-domain response diagrams, frequency-domain response diagrams, phase diagrams, Poincaré section diagrams, and bifurcation diagrams. The model and the method were verified by testing a ring die granulator. On this basis, the dynamic response of the system is predicted according to the influence of different parameters. As the bearing support distance increased, the roller eccentricity decreased, the bearing clearance decreased, the response of the rotor system was significantly optimized, and the system tended to stabilize gradually. Therefore, this paper provides a theoretical basis and experimental verification for the optimization of a pelleting machine transmission structure.
Language:
English
Keywords:
rotor dynamics
,
external incentives
,
finite element method
,
bearing
,
gears
Work type:
Article
Typology:
1.01 - Original Scientific Article
Organization:
FS - Faculty of Mechanical Engineering
Publication status:
Published
Publication version:
Version of Record
Year:
2023
Number of pages:
Str. 17-31
Numbering:
Vol. 69, no. 1/2
PID:
20.500.12556/RUL-144877
UDC:
621.8
ISSN on article:
0039-2480
DOI:
10.5545/sv-jme.2022.427
COBISS.SI-ID:
145704451
Publication date in RUL:
20.03.2023
Views:
474
Downloads:
35
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Record is a part of a journal
Title:
Strojniški vestnik
Shortened title:
Stroj. vestn.
Publisher:
Zveza strojnih inženirjev in tehnikov Slovenije [etc.], = Association of Mechanical Engineers and Technicians of Slovenia [etc.
ISSN:
0039-2480
COBISS.SI-ID:
762116
Licences
License:
CC BY-NC 4.0, Creative Commons Attribution-NonCommercial 4.0 International
Link:
http://creativecommons.org/licenses/by-nc/4.0/
Description:
A creative commons license that bans commercial use, but the users don’t have to license their derivative works on the same terms.
Secondary language
Language:
Slovenian
Title:
Analiza dinamičnih lastnosti sistema zobnik–rotor–ležaj z zunanjim vzbujanjem
Keywords:
dinamika rotorja
,
zunanje vzbujanje
,
metoda končnih elementov
,
ležaji
,
zobniki
,
sila pri ekstrudiranju
Projects
Funder:
Other - Other funder or multiple funders
Funding programme:
National Natural Science Foundation of China
Project number:
52065050
Funder:
Other - Other funder or multiple funders
Funding programme:
Inner Mongolia Autonomous Region of China
Project number:
JY20220377
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