| 轿车顶盖多点成形时非连续性边界条件的处理 |
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| 引用本文： | 夏怀成,裴永生,李文平,李明哲.轿车顶盖多点成形时非连续性边界条件的处理[J].汽车工程,2007,29(9):819-822. |
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| 作者姓名： | 夏怀成 裴永生 李文平 李明哲 |
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| 作者单位： | 1. 燕山大学车辆与能源学院,秦皇岛,066004
2. 吉林大学材料科学与工程学院,长春,130025 |
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| 基金项目： | 华中科技大学塑性成形模拟及模具技术国家重点实验室项目;河北省教育厅科研项目 |
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| 摘 要： | 将多点成形技术应用在轿车顶盖成形过程中。基于虚功率增率型原理和经典的J2流动理论,建立了具有材料、几何与非连续性边界条件三重非线性空间曲壳的有限元模型,给出了多点成形时非连续动态接触边界条件的处理方法,采用ANSYS软件对所建模型进行轿车顶盖多点成形过程的模拟,并通过实验得到了验证。
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| 关 键 词： | 轿车顶盖 多点成形 有限元 板材 |
| 修稿时间： | 2006-04-18 |
Treatment of Discontinuous Boundary Conditions During Multi-Point Forming of Car Roof |
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| Xia Huaicheng,Pei Yongsheng,Li Wenping,Li Mingzhe.Treatment of Discontinuous Boundary Conditions During Multi-Point Forming of Car Roof[J].Automotive Engineering,2007,29(9):819-822. |
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| Authors: | Xia Huaicheng Pei Yongsheng Li Wenping Li Mingzhe |
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| Institution: | 1. Vehicle and Energy College, Yanshan University, Qinhuangdao 066004; 2. Material Science and Engineering College, Jilin University, Changchun 130025 |
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| Abstract: | In this paper,multi-point forming technique is applied to the forming process of a car roof.Based on the incremental version of the principle of virtual power and the classical J2 flow theory,a finite element model of curved shells with triple nonlinearity in material,geometry and discontinuous boundary conditions is set up and a scheme for dealing with discontinuous dynamic contact boundary conditions is proposed.Base on the model and using ANSYS software,a simulation on the multi-point forming process of the car roof is conducted and verified by experiments. |
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| Keywords: | Car roof Multi-point forming Finite element Sheet metal |
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