arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2003.12369math.NAcs.NA
收藏

用非光滑最优化方法求解准静态接触问题

Solving Quasistatic Contact Problems Using Nonsmooth Optimization Approach

Michal Jureczka, Anna Ochal, Weimin Han

摘要:

本文研究了一类含时半变分不等式。证明了其解的存在唯一性,给出了全离散格式,并将该格式转化为一系列非光滑最优化问题。这一理论后来被应用到一个样本的准静态接触问题描述的粘弹性体摩擦接触的基础。这种接触是由一个非单调的摩擦定律,依赖于法向分量的位移和切向分量的速度。最后,计算模拟来说明所获得的结果。

英文摘要:

This paper is devoted to a study of time-dependent hemivariational inequality. We prove existence and uniqueness of its solution, provide fully discrete scheme and reformulate this scheme as a series of nonsmooth optimization problems. This theory is later applied to a sample quasistatic contact problem describing a viscoelastic body in frictional contact with a foundation. This contact is governed by a nonmonotone friction law with dependence on normal component of displacement and tangential component of velocity. Finally, computational simulations are performed to illustrate obtained results.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑