一类针对高阶单元接触搜索算法：系统搜索算法

提出一类基于非线笥约束优化理论的高副搜索算法。通用的一些接触搜索算法一般针对低阶单元，它们具有较高的计算效率，但不适应于高阶单元。随着工整中对计算精度要求不断提高，高阶单元逐步被引入到接触问题计算程序中。因此，给出针对亢介单元而人有与现有的低阶算法相比扩计算效率的接触索算法具有现实意义，本文采用系统索方法和非线性约束优化理论，建立一种高阶单元接触点副搜索算法。计算表明，本算法具有较高的计算疚和良好

A New Kind of Contact Searching Algorithm of Higher Order Finite Element Based on Constrained Nonlinear Optimization Techniques

Several conventional contact searching algorithms, with the advantage of excellent computational efficiency, are usually refer to lower order finite element. But which are not suitable for the contact problems in which higher order finite element is adopted. It has an urgent need in engineering that developes a kind of contact searching algorithm which can deal with the contact problems of higher order FE and its computational efficiency has equal level to conventional contact searching algorithms. On the basis of the Systematic Search Method and nonlinear constrained optimization theory, this paper developes a new kind of contact searching algorithm of higher order finite element. A variety of examples show that the contact searching algorithm has better computatinal efficiency and higher precision.