查询词典 sheet metal

With analyzing structure features of sheet metal parts, the geometrical information model is built on the basis of the hierarchy of structure feature, structure element and geometrical element.

2分析了钣金零件的结构特征构成，建立了"结构特征—结构要素—几何要素"的三层几何信息模型，并采用树结构组织模型几何数据，分别给出了框肋零件、整体壁板零件和蒙皮零件的几何信息模型；分析了状态衍化中的结构要素变化类型和成形工序对结构要素变化的影响，采用加权图描述了状态衍化中结构树的变化；对应零件几何信息层次构成，建立了钣金零件结构特征的XML模式，分别举例说明了各层几何信息的XML表达，形成了基于XML的钣金零件数据表达方法。

The occasional Damara and Herero homesteads bear no trace of the Germanic penchant for order; they are tiny mean huts cobbled together from sheet metal, elephant dung, car doors, truck canopies, straw and whatever else is at hand.

这个达马拉人和赫雷罗人的临时家园丝毫不没有留下日耳曼人的倾向。他们拥有用金属片简单搭建的简陋的窝棚、大象的粪便、车门、卡车天篷、稻草和附近的其他的一切！

The occasional Damara and Herero homesteads bear no trace of the Germanic penchant for order; they are tiny mean huts cobbledtogether from sheet metal, elephant dung, car doors, truck canopies, straw and whatever else is at hand.

达马拉和赫雷罗地区的家宅房屋没有保留任何德国式的建筑风格，它们都是一些由金属片、大象的粪便、破烂的车门、大卡车的遮蓬布、稻草以及任何可以找到的东西堆积而成的矮小而简陋棚屋。

In this paper, based on the dynamic analysis of sheet metal hydroforming, a new structure of hydroforming mould for motorcycle oil box is introduced.

但是板材液压成形工艺与模具的设计目前尚无完善的理论，文章基于板材液压成形的力学分析，设计了一套摩托车油箱的液压成形模具。

The intellectualization of bending is an important research field of sheet metal forming intellectualization.

弯曲成形的智能化是板材成形智能化研究的一个重要领域。

Based on ideal deformation theory, the authors developed a finite element inverse approach for sheet metal forming process simulation, and the computer program was implemented.

依据理想形变理论，研究开发了冲压成形过程模拟的有限元逆算法，并考虑了成形中的压边力，拉延筋等工艺条件，实现了计算机程序。

In this thesis, the results of extremal work path theory are adopted, and the FEM based on deformation theory is formulated. The Inverse Finite Element Approach in sheet metal forming is studied in detail, and an Object-Oriented Finite Element Analysis program is developed, which provides rapid and effective means for stamping process planning and die design.

本文运用极值路径理论推导出基于形变理论的有限元公式，研究了钣料成形有限元逆算法，开发了面向对象的有限元分析程序，为冲压工艺和模具设计提供了快速有效的分析手段。

Numerical simulation is carried out by finite element inverse approach. The initial blank shape and stress, strain states have been obtained. At the same time, the formability of the fender has been analyzed. The possible defects in the sheet metal forming process are estimated, and several ways are provided to prevent and control these forming defects.

本文还以汽车后翼子板为例，使用有限元逆算法模拟计算得到了其初始毛坯形状、最终构形的应力应变状态及厚度分布，并进行了板料成形性分析，预测了冲压过程中可能产生的成形缺陷，探讨了预防和控制缺陷产生的措施。

There are some parts with joggle in sheet metal parts of airplane and we havent got an exact way to develop these parts currently, people develop parts with joggle mainly by experience.

飞机钣金零件中有一类零件带有下陷，下陷区域展开困难，目前主要采用经验方法展开，精度不高。

Influence of material properties on laser bending process of sheet metal .

材料性能参数对板料激光弯曲成形的影响。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。