以下为句子列表：
英文: By applying the basic principles for optimizing design of structure based on the finite element method and aiming at the problems, such as nonlinear contact problem involved in special hydraulic spanner, the main part of tank track hydraulic regulator, et
中文: 摘要运用有限元法进行结构优化设计的基本原理，针对坦克履带液压调整器特种液压扳手主要机件所涉及非线性接触等问题，进行了有限元优化的计算分析与研究，得到了优化的形状与尺寸，结构特性与受力状况得到明显改善。
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