查询词典 die hard

3D-CTM (Coupled Thermo-Mechanical Forming Simulation) software for precision forging process of aero-engine blade was developed. The key technologies of 3D coupled rigid-viscoplastic thermo-mechanical FEM simulation of blade forging process were studied systematically. By using the remeshing method of contracting from the boundary to the inner, new mesh system from old distorted mesh system can be obtained. A method of modifying the position of nodes touching on the die according to its original normal was proposed to avoid "dead lock" problem due to uncontinuity of normal of scatted die meshes. The pseudo-static iterative algorithm was used to simplify the coupled thermo-mechanical computation. In particular, formulations to determine relaxation factor β was established for rigid viscoplastic FEM adopting penalty function method, and an improved cubic factor rapid algorithm derived from these formulations was proposed by combining with the advantage of advance and retreat search method.

采用基于边界构形的内缩法，实现了三维畸变网格的重新划分；提出了初矢修正法对触模节点的位置进行修正，解决了由于离散的模具网格的法矢不连续造成的&死锁&问题；采用准静态迭代法简化了速度场和温度场耦合计算过程；特别是针对减速因子β的选取，建立了适用于三维复杂成形过程刚粘塑性罚函数法有限元三次因子法的计算公式，并结合进退搜索法提出了改进的三次因子快速算法，提高了模拟计算效率和稳定性，在此基础之上，开发了面向叶片精锻过程的三维刚粘塑性热力耦合有限元模拟分析系统(3D-CTM)，系统的可靠性得到了圆柱体镦粗的验证。

By forming semi-solid slurries at the die casting machine, the process improves die casting quality and cost, particularly for automotive components.

通过在压铸机形成的半固态浆料，这个方法显著的提高了压铸件的质量和成本。

To die for the people is weightier than Mount Tai, but to work for the fascists and die for the

张思德同志是为人民利益而死的，他的死是比泰山还要重的。

Die edge bevel edge fangzheng, existing is not enough, the tightening of the vulnerable after starting kungsi, die tightening, and embossing plate the local deformation, edgwise, and so on will line indentation.

模切版边缘不够方正、存在斜边情况时，紧固后的版容易出现起弓现象；模切版的紧固过度，以及压印平板上的铁板局部出现变形、起弓等情况，都会造成压痕线爆裂。

Piercing blanking die design must die so that the pressure of the press center and the centerline coincides slider.

冲孔落料模具的设计必须使冲模的压力中心和压力机的滑块中心线相重合。

This article describes the importance for developing a practical blanking die CAD/CAM system in die manufactucring industry in Yunnan province.

阐述了开发实用型冲裁模CAD／CAM系统对我省模具制造业的意义，并介绍了这个系统的结构及研究开发情况

Piercing blanking die design must die so that the pressure ofthe press center and the centerline coincides slider.

冲孔落料模具的设计必须使冲模的压力中心和压力机的滑块中心线相重合。

The design method of faceplate oblique edge blanking die, die structure, punch structure and matrix structure were introduced in detail.

详细介绍了面板斜刃冲裁模的设计方法和模具结构及冲裁凸凹模结构。

We need two sets of parts forming mold, one is a drawing blanking punching die, flanging die is another.

零件的成形需要两套模具，一套是落料拉深冲孔的复合模具，另外一套是翻边模具。

At present, my country has greatly achieved progress in CAD of blanking die, but because of these system"s limitation, they can"t satisfy the request for die producers and cant be used widely , either.

目前，我国在冲裁模CAD的研究中取得了很大进展，相继推出了一些冲裁模CAD系统，但由于这些系统的局限性，尚不能满足模具生产厂家的要求，无法得到广泛应用。

Go to your desktop and right click in a blank space.

请到您的桌面，然后右击一个空白。

Tara appears in Buddhism, Jainism, and particularly, Tibetan Lamaism, as a complex array of manifestations: goddess of ascetism and mysticism, mother creator, protectress of all humans as they cross the sea of life.

度母出现在佛教，耆那教里面，尤其是西藏的喇嘛教，作为一系列的陈列阵容；神秘的女神，创世之母，人类横过生命之海洋的女性保护者。