Dynamic Characteristic Analysis of the Main Drive Gear Transmission System of a Large Shield Machine Considering Non-uniform Load Conditions

In order to investigate the dynamic characteristic of the parallel gear transmission system of the main drive of a large shield machine with multiple sources (including 16 sets of drive chains) under the load of non-uniform load condition, a bending-torsion coupled equivalent dynamics model of the m...

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Main Authors: Deng Shuzhi, Xu Lixin, Long Bin, Su Cuixia
Format: Article
Language:zho
Published: Editorial Office of Journal of Mechanical Transmission 2024-05-01
Series:Jixie chuandong
Subjects:
Online Access:http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2024.05.013
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author Deng Shuzhi
Xu Lixin
Long Bin
Su Cuixia
author_facet Deng Shuzhi
Xu Lixin
Long Bin
Su Cuixia
author_sort Deng Shuzhi
collection DOAJ
description In order to investigate the dynamic characteristic of the parallel gear transmission system of the main drive of a large shield machine with multiple sources (including 16 sets of drive chains) under the load of non-uniform load condition, a bending-torsion coupled equivalent dynamics model of the main drive gear transmission system of a large shield machine with 230 degrees of freedom is established. In the modeling, the cutter torque and the overturning moment under the deflection load condition are calculated. The model analyzes the time-frequency dynamic response characteristics of the drive system under the action of the multi-source driving torque by considering the effects of nonlinear factors such as the time-varying meshing stiffness of gear teeth, gear transmission errors and backlash. The research results indicate that the vibration frequency components of the gear and the self-aligning bearings on both sides are mainly the gear meshing frequency, as well as the characteristic frequency of the bearing outer ring passing through. The maximum amplitude of the dynamic meshing force of the gear and the contact force of the bearing raceway occur at the corresponding meshing frequency and its harmonics, exhibiting obvious low-frequency vibration characteristics.Under non-uniform load conditions, there is a significant uneven load phenomenon in the meshing force between the small gears and the inner ring gear of the main drive group.
format Article
id doaj-art-c45873ad7e0d48558ea9d481add59ee1
institution Kabale University
issn 1004-2539
language zho
publishDate 2024-05-01
publisher Editorial Office of Journal of Mechanical Transmission
record_format Article
series Jixie chuandong
spelling doaj-art-c45873ad7e0d48558ea9d481add59ee12025-01-10T15:00:32ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392024-05-0148889759003674Dynamic Characteristic Analysis of the Main Drive Gear Transmission System of a Large Shield Machine Considering Non-uniform Load ConditionsDeng ShuzhiXu LixinLong BinSu CuixiaIn order to investigate the dynamic characteristic of the parallel gear transmission system of the main drive of a large shield machine with multiple sources (including 16 sets of drive chains) under the load of non-uniform load condition, a bending-torsion coupled equivalent dynamics model of the main drive gear transmission system of a large shield machine with 230 degrees of freedom is established. In the modeling, the cutter torque and the overturning moment under the deflection load condition are calculated. The model analyzes the time-frequency dynamic response characteristics of the drive system under the action of the multi-source driving torque by considering the effects of nonlinear factors such as the time-varying meshing stiffness of gear teeth, gear transmission errors and backlash. The research results indicate that the vibration frequency components of the gear and the self-aligning bearings on both sides are mainly the gear meshing frequency, as well as the characteristic frequency of the bearing outer ring passing through. The maximum amplitude of the dynamic meshing force of the gear and the contact force of the bearing raceway occur at the corresponding meshing frequency and its harmonics, exhibiting obvious low-frequency vibration characteristics.Under non-uniform load conditions, there is a significant uneven load phenomenon in the meshing force between the small gears and the inner ring gear of the main drive group.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2024.05.013Large shield machineNon-uniform load conditionsGear transmissionDynamic modelingVibration characteristics
spellingShingle Deng Shuzhi
Xu Lixin
Long Bin
Su Cuixia
Dynamic Characteristic Analysis of the Main Drive Gear Transmission System of a Large Shield Machine Considering Non-uniform Load Conditions
Jixie chuandong
Large shield machine
Non-uniform load conditions
Gear transmission
Dynamic modeling
Vibration characteristics
title Dynamic Characteristic Analysis of the Main Drive Gear Transmission System of a Large Shield Machine Considering Non-uniform Load Conditions
title_full Dynamic Characteristic Analysis of the Main Drive Gear Transmission System of a Large Shield Machine Considering Non-uniform Load Conditions
title_fullStr Dynamic Characteristic Analysis of the Main Drive Gear Transmission System of a Large Shield Machine Considering Non-uniform Load Conditions
title_full_unstemmed Dynamic Characteristic Analysis of the Main Drive Gear Transmission System of a Large Shield Machine Considering Non-uniform Load Conditions
title_short Dynamic Characteristic Analysis of the Main Drive Gear Transmission System of a Large Shield Machine Considering Non-uniform Load Conditions
title_sort dynamic characteristic analysis of the main drive gear transmission system of a large shield machine considering non uniform load conditions
topic Large shield machine
Non-uniform load conditions
Gear transmission
Dynamic modeling
Vibration characteristics
url http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2024.05.013
work_keys_str_mv AT dengshuzhi dynamiccharacteristicanalysisofthemaindrivegeartransmissionsystemofalargeshieldmachineconsideringnonuniformloadconditions
AT xulixin dynamiccharacteristicanalysisofthemaindrivegeartransmissionsystemofalargeshieldmachineconsideringnonuniformloadconditions
AT longbin dynamiccharacteristicanalysisofthemaindrivegeartransmissionsystemofalargeshieldmachineconsideringnonuniformloadconditions
AT sucuixia dynamiccharacteristicanalysisofthemaindrivegeartransmissionsystemofalargeshieldmachineconsideringnonuniformloadconditions