Dynamic analysis of lathe bed of woodworking CNC machining center based on the modeling of joint surface.

Based on the finite element theory, a joint-plane modeling method is employed to connect the corresponding nodes at the joint surface of the woodworking computer numerical control (CNC) machining center bed with a 2-node 12-degree-of-freedom unit. A spatial element model is established, which can sh...

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Main Authors: Yin-Kun Sun, Jun Hua, Yan-Na Li, Guang-Wei Chen, Ming-Hui Liu
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2022-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0277919
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author Yin-Kun Sun
Jun Hua
Yan-Na Li
Guang-Wei Chen
Ming-Hui Liu
author_facet Yin-Kun Sun
Jun Hua
Yan-Na Li
Guang-Wei Chen
Ming-Hui Liu
author_sort Yin-Kun Sun
collection DOAJ
description Based on the finite element theory, a joint-plane modeling method is employed to connect the corresponding nodes at the joint surface of the woodworking computer numerical control (CNC) machining center bed with a 2-node 12-degree-of-freedom unit. A spatial element model is established, which can show the state of the nodes between joint surfaces when they are stretched, compressed, or twisted; and it can help build a woodworking CNC machining center on a finite element model of bed with the characteristics of the joint surface. The simulated analysis is performed on the model and is compared with the result of simulated analysis on the bed model that ignores the characteristics of the joint surface and modal experiment. The comparison verifies the effectiveness of the modeling method based on the characteristics of the joint surface. The weak link of the machine bed structure is analyzed and optimized. The natural frequency of the bed is improved by2.55% ~ 11.3%. The displacement is reduced by a maximum of 19.4%, and dynamic performance of the bed is improved.
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spelling doaj.art-bb439debf1134568a65bd9ed9fef30af2022-12-24T05:32:55ZengPublic Library of Science (PLoS)PLoS ONE1932-62032022-01-011711e027791910.1371/journal.pone.0277919Dynamic analysis of lathe bed of woodworking CNC machining center based on the modeling of joint surface.Yin-Kun SunJun HuaYan-Na LiGuang-Wei ChenMing-Hui LiuBased on the finite element theory, a joint-plane modeling method is employed to connect the corresponding nodes at the joint surface of the woodworking computer numerical control (CNC) machining center bed with a 2-node 12-degree-of-freedom unit. A spatial element model is established, which can show the state of the nodes between joint surfaces when they are stretched, compressed, or twisted; and it can help build a woodworking CNC machining center on a finite element model of bed with the characteristics of the joint surface. The simulated analysis is performed on the model and is compared with the result of simulated analysis on the bed model that ignores the characteristics of the joint surface and modal experiment. The comparison verifies the effectiveness of the modeling method based on the characteristics of the joint surface. The weak link of the machine bed structure is analyzed and optimized. The natural frequency of the bed is improved by2.55% ~ 11.3%. The displacement is reduced by a maximum of 19.4%, and dynamic performance of the bed is improved.https://doi.org/10.1371/journal.pone.0277919
spellingShingle Yin-Kun Sun
Jun Hua
Yan-Na Li
Guang-Wei Chen
Ming-Hui Liu
Dynamic analysis of lathe bed of woodworking CNC machining center based on the modeling of joint surface.
PLoS ONE
title Dynamic analysis of lathe bed of woodworking CNC machining center based on the modeling of joint surface.
title_full Dynamic analysis of lathe bed of woodworking CNC machining center based on the modeling of joint surface.
title_fullStr Dynamic analysis of lathe bed of woodworking CNC machining center based on the modeling of joint surface.
title_full_unstemmed Dynamic analysis of lathe bed of woodworking CNC machining center based on the modeling of joint surface.
title_short Dynamic analysis of lathe bed of woodworking CNC machining center based on the modeling of joint surface.
title_sort dynamic analysis of lathe bed of woodworking cnc machining center based on the modeling of joint surface
url https://doi.org/10.1371/journal.pone.0277919
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AT guangweichen dynamicanalysisoflathebedofwoodworkingcncmachiningcenterbasedonthemodelingofjointsurface
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