| 1. | Life of electric switch with self - elastic contact finger is long 自力型触指,开关电气寿命长 |
| 2. | In this thesis , the combination of photoelastic and numerical methods is used to study the two - dimensional elastic contact problems 本文利用光弹性-数值组合解法对平面弹性接触问题进行了研究。 |
| 3. | A boundary element method based on an iterative technique for solving the three - dimensional elastic contact problem is presented 本文采用一种基于迭代技术的边界元法求解钢丝与滚道的三维摩擦型弹性接触问题。 |
| 4. | The effects of several factors on contact problems are discussed , and the experiment examination is provided for the numerical solution of elastic contact problems 分别探讨了几个因素对接触问题的影响,为数值求解平面弹性接触问题提供实验验证。 |
| 5. | This paper discusses the shape optimization problem of 3 - d elastic contact objects in theory using bem , and analyses the real contact problem of bears and rolls 本文以边界元法作为应力分析工具,对三维弹性接触物体的形状优化问题进行了理论上的探讨,并对直齿轮接触问题、滚子接触问题进行了实际分析。 |
| 6. | This paper discusses the optimization problem of 3 - d elastic contact objects in theory using bem , and analyze the real contact problem of helical gears . the author developed the program which is necessary for the stresses analyses 本文以边界元法作为应力分析工具,对三维弹性接触问题的形状优化问题进行了理论上的探讨,并对斜齿轮接触问题进行了实际分析。 |
| 7. | The author developed and made advanced the common program 3dcbem , selected cvm as the optimize algorithm . a integrated shape optimization software system of 3 - d elastic contact program based on 3dcbem was constructed 作者完善和发展了三维弹性物体接触应力通用边界元分析程序3dcbem ;选取约束变尺度法作为优化算法,构建了一个完整的三维弹性接触问题形状优化软件系统。 |
| 8. | Based on the difference between the corresponding limit of displacement from both side of contacted bodies , a local direct error estimator of bem solution for 3d elastic contact problem is presented , and then a scheme of adaptive bem is suggested 在此基础上提出将接触体接触单元间与域内解连续的边界位移之差的某种度量作为三维弹性体接触问题边界元法的一种误差直接估计,并且提出了三维弹性体接触问题边界元法的一种自适应计算方案。 |
| 9. | The boundary integral equation for elasticity is derived through the general green ’ s formula and the corresponding fundamental solution . the paper represents the contact conditions , which are essential for the coupling of the boundary integral equations of the two different elastic contact bodies , in a local coordinate system properly chosen 利用广义格林公式和基本解得出弹性问题的边界积分方程,采用循环迭代的方法,通过寻求与接触条件相协调的接触边界位移及面力增量来确定接触区域的大小。 |
| 10. | Special grids is adopted for solid model of conical roller bearings by applying for three - dimensional solid and contact elements , aiming at its characteristic , stress and load distribution of elastic contact problems . finite element model built in the paper is fit for objective practice , with flexible - flexible contact bodies and surfaces - surfaces contact mode 本文针对汽车后桥传动锥轴承的接触弹性变形特点、接触应力及负荷分布规律,采用三维实体单元及三维接触单元对圆锥滚子轴承实体模型进行特殊的有限元网格划分,将接触单元按柔体一柔体处理,采用面一面接触分析模式,建立了符合实际的有限元模型。 |