| 陈成军,陈小伟,柳明.接触-碰撞算法研究进展[J].计算力学学报,2018,35(3):261~274 |
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| 接触-碰撞算法研究进展 |
| Review of research progress in contact-impact algorithms |
| 投稿时间：2016-08-17 修订日期：2018-01-31 |
| DOI：10.7511/jslx20160817002 |
| 中文关键词: 碰撞动力学 显式有限元 接触算法 接触搜索 |
| 英文关键词:impact dynamics explicit finite element contact algorithm contact search |
| 基金项目:科技部高性能计算重大专项（2016YFB0201004）；科学挑战计划（JCKY2016212A502）；国防基础科研计划（C152011002）资助项目. |
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| 中文摘要: |
| 接触-碰撞广泛存在于实际工程问题中，是影响数值计算效率与计算精度的重要因素。本文针对变形体间接触-碰撞问题的显式有限元计算，介绍接触-碰撞算法近30年来取得的主要进展。首先，简要介绍接触-碰撞问题的界面离散模型；然后，从全局接触搜索、局部搜索、接触约束施加以及接触计算的并行化四方面详细阐述目前主要算法的基本思想与特点，并分析其优势与不足；最后，对接触-碰撞算法相关研究方向给出建议。 |
| 英文摘要: |
| Contact-impact problems are very common in engineering fields and are among the most challenging problems in solid/structure mechanics due to its inherent complexity.Over the last three decades, considerable research has been devoted to contact-impact problems, and remarkable progress has been achieved.This review concentrate on the contact algorithms used to simulate contact interface behavior between deformable bodies in the explicit finite element context.The advances in contact-impact algorithm are reviewed and summarized in this paper.Firstly, the contact interface discrete models are introduced briefly.Subsequently, the contact-impact algorithms, including the global contact searching algorithms, the local contact detecting algorithms and the constraint enforcement algorithms are discussed in detail.The main ideas and basic characters of various algorithms are revealed, and their advantages and deficiency are discussed.In addition, the parallel strategies adopted in contact-impact problems are presented and discussed.Finally, some proposals for future investigation are made. |
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