In this paper we present an abstract nonsmooth optimization problem for which we recall existence and uniqueness results. We show a numerical scheme to approximate its solution. The theory is later applied to a sample static contact problem describing an elastic body in frictional contact with a foundation. This problem leads to a hemivariational inequality which we solve numerically. Finally, we compare three computational methods of solving contact mechanical problems: direct optimization method, augmented Lagrangian method and primal-dual active set strategy.
翻译:在本文中,我们提出了一个抽象的非移动优化问题,对此我们回顾其存在和独特性的结果。我们展示了一个接近其解决方案的数字方法。这个理论后来被应用于一个样本静态接触问题,描述与基金会摩擦接触的弹性体。这个问题导致一种偏差不平等,我们从数字上解决。最后,我们比较了三种解决接触机械问题的计算方法:直接优化方法、强化拉格朗江方法和原始双向主动设定战略。