Analysis of the dynamic characteristics of a gear-rotor-bearing system with external excitation

Na, Risu (avtor), Jia, Kaifa (avtor), Miao, Shujing (avtor), Zhang, WeiGuo (avtor), Zhang, Quan (avtor)

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.

• Jezik: Angleški jezik
• Ključne besede: rotor dynamics, external incentives, finite element method, bearing, gears
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2023
• Št. strani: Str. 17-31
• Številčenje: Vol. 69, no. 1/2
• PID: 20.500.12556/RUL-144877
• UDK: 621.8
• ISSN pri članku: 0039-2480
• DOI: 10.5545/sv-jme.2022.427
• COBISS.SI-ID: 145704451
• Datum objave v RUL: 20.03.2023

Gradivo je del revije

• Naslov: Strojniški vestnik
• Skrajšan naslov: Stroj. vestn.
• Založnik: Zveza strojnih inženirjev in tehnikov Slovenije [etc.], = Association of Mechanical Engineers and Technicians of Slovenia [etc.
• ISSN: 0039-2480
• COBISS.SI-ID: 762116

Licence

• Licenca: CC BY-NC 4.0, Creative Commons Priznanje avtorstva-Nekomercialno 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by-nc/4.0/deed.sl
• Opis: Licenca Creative Commons, ki prepoveduje komercialno uporabo, vendar uporabniki ne rabijo upravljati materialnih avtorskih pravic na izpeljanih delih z enako licenco.

Sekundarni jezik

• Jezik: Slovenski jezik
• Naslov: Analiza dinamičnih lastnosti sistema zobnik–rotor–ležaj z zunanjim vzbujanjem
• Ključne besede: dinamika rotorja, zunanje vzbujanje, metoda končnih elementov, ležaji, zobniki, sila pri ekstrudiranju

Projekti

• Financer: Drugi - Drug financer ali več financerjev
• Program financ.: National Natural Science Foundation of China
• Številka projekta: 52065050

• Financer: Drugi - Drug financer ali več financerjev
• Program financ.: Inner Mongolia Autonomous Region of China
• Številka projekta: JY20220377