Abstract
This study was aimed to investigate the influence of the linear guide configuration on the dynamic characteristics of a gantry milling machine. To predict the dynamic characteristics, we created the finite element model of the gantry machine, in which linear components were also included and modeled with the introduction of the contact stiffness defined by Hertz contact theory. Using this model, the vibration modes dominating the dynamic stiffness were determined. The results of the finite element simulations reveal that the linear guides with different preloads greatly affect the dynamic responses of the spindle tool. These results were validated by performing vibration tests on the milling machine prototype. Comparisons of the predicted results and experimental data show good agreements between them. According to the analysis results, the maximum dynamic compliance can be increased by 33% in X-axis direction and decreased by 18% in Y-axis direction, respectively when the linear guides are changed from low to high preload. Overall, current results clearly suggest that the proposed gantry model can be used to evaluate how the specification of the linear components can affect the machining performance of the milling machine.
| Original language | English |
|---|---|
| Title of host publication | Engineering Decisions for Manufacturing Systems |
| Pages | 194-199 |
| Number of pages | 6 |
| DOIs | |
| Publication status | Published - 2013 Oct 29 |
| Event | 2nd International Symposium on Manufacturing Systems Engineering, ISMSE 2013 - , Singapore Duration: 2013 Jul 27 → 2013 Jul 29 |
Publication series
| Name | Applied Mechanics and Materials |
|---|---|
| Volume | 404 |
| ISSN (Print) | 1660-9336 |
| ISSN (Electronic) | 1662-7482 |
Other
| Other | 2nd International Symposium on Manufacturing Systems Engineering, ISMSE 2013 |
|---|---|
| Country | Singapore |
| Period | 13-07-27 → 13-07-29 |
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All Science Journal Classification (ASJC) codes
- Engineering(all)
Cite this
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Dynamic characteristics of a gantry milling machine under the influence of linear guide preload. / Hung, Jui Pin; Lai, Yuan Lung; Chen, Yong Run.
Engineering Decisions for Manufacturing Systems. 2013. p. 194-199 (Applied Mechanics and Materials; Vol. 404).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Dynamic characteristics of a gantry milling machine under the influence of linear guide preload
AU - Hung, Jui Pin
AU - Lai, Yuan Lung
AU - Chen, Yong Run
PY - 2013/10/29
Y1 - 2013/10/29
N2 - This study was aimed to investigate the influence of the linear guide configuration on the dynamic characteristics of a gantry milling machine. To predict the dynamic characteristics, we created the finite element model of the gantry machine, in which linear components were also included and modeled with the introduction of the contact stiffness defined by Hertz contact theory. Using this model, the vibration modes dominating the dynamic stiffness were determined. The results of the finite element simulations reveal that the linear guides with different preloads greatly affect the dynamic responses of the spindle tool. These results were validated by performing vibration tests on the milling machine prototype. Comparisons of the predicted results and experimental data show good agreements between them. According to the analysis results, the maximum dynamic compliance can be increased by 33% in X-axis direction and decreased by 18% in Y-axis direction, respectively when the linear guides are changed from low to high preload. Overall, current results clearly suggest that the proposed gantry model can be used to evaluate how the specification of the linear components can affect the machining performance of the milling machine.
AB - This study was aimed to investigate the influence of the linear guide configuration on the dynamic characteristics of a gantry milling machine. To predict the dynamic characteristics, we created the finite element model of the gantry machine, in which linear components were also included and modeled with the introduction of the contact stiffness defined by Hertz contact theory. Using this model, the vibration modes dominating the dynamic stiffness were determined. The results of the finite element simulations reveal that the linear guides with different preloads greatly affect the dynamic responses of the spindle tool. These results were validated by performing vibration tests on the milling machine prototype. Comparisons of the predicted results and experimental data show good agreements between them. According to the analysis results, the maximum dynamic compliance can be increased by 33% in X-axis direction and decreased by 18% in Y-axis direction, respectively when the linear guides are changed from low to high preload. Overall, current results clearly suggest that the proposed gantry model can be used to evaluate how the specification of the linear components can affect the machining performance of the milling machine.
UR - http://www.scopus.com/inward/record.url?scp=84886289643&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84886289643&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMM.404.194
DO - 10.4028/www.scientific.net/AMM.404.194
M3 - Conference contribution
AN - SCOPUS:84886289643
SN - 9783037858455
T3 - Applied Mechanics and Materials
SP - 194
EP - 199
BT - Engineering Decisions for Manufacturing Systems
ER -