Dynamics Modeling and Experimental Investigation of Gear Mechanism with Coupled Small Clearances
Internal gear mechanism is widely used in micro-nano satellites due to its compact structure and high precision transmission. However, the vibration coupling caused by the small clearance coupling is more obvious and cannot be ignored under low speed, light load and zero gravity conditions. Based on...
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doaj-873fbbbe059d44dc90734894da244ff42021-07-23T13:39:37ZengMDPI AGEntropy1099-43002021-06-012383483410.3390/e23070834Dynamics Modeling and Experimental Investigation of Gear Mechanism with Coupled Small ClearancesJianchao Han0Lei Liang1Huibo Zhang2Yang Zhao3Department of Astronautics Engineering, Harbin Institute of Technology, Harbin 150001, ChinaDepartment of Astronautics Engineering, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Mechanical Engineering, Hebei University of Technology, Tianjin 300130, ChinaDepartment of Astronautics Engineering, Harbin Institute of Technology, Harbin 150001, ChinaInternal gear mechanism is widely used in micro-nano satellites due to its compact structure and high precision transmission. However, the vibration coupling caused by the small clearance coupling is more obvious and cannot be ignored under low speed, light load and zero gravity conditions. Based on the geometric relationship between radial clearance and backlash, a coupled model between dynamic backlash and radial clearance of internal meshing gear is established. Based on the conformal contact theory, the radial collision force model of the gear shaft and shaft sleeve considering the small clearances is established. Additionally, a multi-clearance gear rotor system test device is built to measure the vibration acceleration of the internal gear rotor system by an acceleration sensor and transmitted to the industrial computer through a signal collector for data processing. Through the comparison of simulation and experiment, the accuracy of the gear dynamics model is verified. The analysis results show that, compared with the traditional model, the calculation results of the gear mechanism model considering the small clearance coupling is closer to the experimental data.https://www.mdpi.com/1099-4300/23/7/834small clearancesgear mechanismdynamic modelingexperiment |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jianchao Han Lei Liang Huibo Zhang Yang Zhao |
spellingShingle |
Jianchao Han Lei Liang Huibo Zhang Yang Zhao Dynamics Modeling and Experimental Investigation of Gear Mechanism with Coupled Small Clearances Entropy small clearances gear mechanism dynamic modeling experiment |
author_facet |
Jianchao Han Lei Liang Huibo Zhang Yang Zhao |
author_sort |
Jianchao Han |
title |
Dynamics Modeling and Experimental Investigation of Gear Mechanism with Coupled Small Clearances |
title_short |
Dynamics Modeling and Experimental Investigation of Gear Mechanism with Coupled Small Clearances |
title_full |
Dynamics Modeling and Experimental Investigation of Gear Mechanism with Coupled Small Clearances |
title_fullStr |
Dynamics Modeling and Experimental Investigation of Gear Mechanism with Coupled Small Clearances |
title_full_unstemmed |
Dynamics Modeling and Experimental Investigation of Gear Mechanism with Coupled Small Clearances |
title_sort |
dynamics modeling and experimental investigation of gear mechanism with coupled small clearances |
publisher |
MDPI AG |
series |
Entropy |
issn |
1099-4300 |
publishDate |
2021-06-01 |
description |
Internal gear mechanism is widely used in micro-nano satellites due to its compact structure and high precision transmission. However, the vibration coupling caused by the small clearance coupling is more obvious and cannot be ignored under low speed, light load and zero gravity conditions. Based on the geometric relationship between radial clearance and backlash, a coupled model between dynamic backlash and radial clearance of internal meshing gear is established. Based on the conformal contact theory, the radial collision force model of the gear shaft and shaft sleeve considering the small clearances is established. Additionally, a multi-clearance gear rotor system test device is built to measure the vibration acceleration of the internal gear rotor system by an acceleration sensor and transmitted to the industrial computer through a signal collector for data processing. Through the comparison of simulation and experiment, the accuracy of the gear dynamics model is verified. The analysis results show that, compared with the traditional model, the calculation results of the gear mechanism model considering the small clearance coupling is closer to the experimental data. |
topic |
small clearances gear mechanism dynamic modeling experiment |
url |
https://www.mdpi.com/1099-4300/23/7/834 |
work_keys_str_mv |
AT jianchaohan dynamicsmodelingandexperimentalinvestigationofgearmechanismwithcoupledsmallclearances AT leiliang dynamicsmodelingandexperimentalinvestigationofgearmechanismwithcoupledsmallclearances AT huibozhang dynamicsmodelingandexperimentalinvestigationofgearmechanismwithcoupledsmallclearances AT yangzhao dynamicsmodelingandexperimentalinvestigationofgearmechanismwithcoupledsmallclearances |
_version_ |
1721288475256291328 |