成形的

ABSTRACT Title of Theme: Numerical Simulation and Controlling of Dimples on the Process of Multi-Point Forming for Sheet Metal Specialty: Material Processing Engineering Faculty Adviser: Prof. Cai Zhongyi Multi-point forming is a new means for sheet metal forming.

论文题目：板材多点成形中压痕的数值模拟及控制专业：材料加工工程指导老师：蔡中义教授多点成形（Multi-point forming，简称MPF）是一种全新的板材成形方式。

There is mutual contradiction between direction estimation of user's signal and power allocation among all users in the beamforming algorithm. A twice game beamforming algorithm based on game theory is proposed to deal with it. Beamforming game algorithm mathematics model is constructed. During the first game, direction of signal and power allocation are mapped the game theory as "player", which are modeled as the problem of maximin function and obtain direction estimation first. Then during the second game, power allocations of different users are described as a multi-user game. Power updated algorithm is designed. The existence and uniqueness of the Nash equilibrium in the twice game beamforming algorithm based on game theory are proved by mathematics derivation.

摘要针对波束成形算法中，用户的信号方向估计值和用户之间的功率分配存在着相互矛盾，本文提出了一种基于博弈论的二次博弈波束成形算法，构建了波束成形博弈算法数学模型，首先在第一次博弈的时候，将波束成形算法中的信号方向和功率分配映射为博弈论数学模型中的"局中人"，将其建模为函数的极大极小值求解问题，先求解出信号方向；然后在第二次博弈的时候，将不同用户的功率分配过程描述为一个多用户的博弈过程，设计了功率分配更新算法，通过数学推导论证了纳什平衡点的存在性和唯一性。

In view of the feature of filter shell body and the formability of HPb59-1 brass,the warm forging process was adopted to manufacture the precision forgings of shell body for the microwave communication apparatus.

针对滤波器外导体的结构特点和HPb59-1黄铜的成形特性，采用温锻精密成形加工方法对滤波器外导体的内孔型腔进行了近净成形加工。

The key parametric effect and optimization of apparatus parameters related directly to the forming, has become an important subject in the research and development of the process.

板带不均匀压下面内弯曲成形装置与成形直接关联的参数的效应和优化问题，是板带不均匀压下面内弯曲成形过程研究与发展中的重要基础问题。

At the same time, the essential motion in the gear grinding process and the structure of gear grinding CNC has been discussed. This method could not only applied to outer noncircular gear with all convex pitch line but also applied to outer noncircular gear with partial concave pitch line and inner noncircular gear.

把成形砂轮看作插齿刀的一个刀齿，就可以利用非圆齿轮插齿加工过程中齿廓成形原理，推导出非圆齿轮齿廓的成形砂轮展成磨削方法，同时讨论了按这一原理磨齿时需要的运动及数控机床结构。

These two defects were suppressed when polyurethane elastic cushions and steel paddings were used between the titanium alloy retiary sheet and the press punch with the blankholder device in the forming technology mode, and the 3D curved surface of prosthesis with good quality can be acquired.

模拟结果表明：采用前两种成形工艺得到的钛合金颅骨修复体表面出现压痕或起皱缺陷，采用在基本体和钛合金网板之间放置聚氨酯弹性垫和钢质垫板并使用压边圈这种成形工艺时，可以抑制压痕和起皱的产生，获得良好的成形效果。

Some foreign scholars developed the concept of Forming Limit Stress Diagram on the basis of FLD. FLSD is considered as strain path independent.

一些国外学者在板料成形极限图的基础上提出了板料应力成形极限图的概念，并认为板料应力成形极限图具有与路径无关的特点。

The experimental results showed that the titanium alloy cranial prosthesis can be eligibly shaped with the multipoint forming technology under the appropriate forming process.

实验验证结果表明，应用多点成形技术，运用合理的成形工艺可以成形合格形状的钛合金颅骨修复体。

Principle and methods of closed-forming for bevel gear and multi-motion distributaries for cylinder gear was introduced.

阐述了应用闭式成形技术成形伞齿轮的原理，以及复动分流技术成形圆柱齿轮的原理。

This paper is focused on the basic principle,forming method and the calculations of forming force and blank holder force for 630 kN multi point forming press.

重点介绍了 630kN 多点成形压力机的基本原理、成形方法、成形力及压边力的计算。

The good news is that after formatting from the command line to FAT32 (format /fs:fat32 /a:4096 drive:) all but one of the problematic games that I tested work perfectly.

好消息是，从指挥线后格式化了FAT32(格式/曾荫权：了FAT32/答：4096年径：)所有问题，但其中的游戏测试工作，我很好。

In Amsterdam. He is a Dutch painter, draftsman, and etcher of the 17th century, the greatest artist of the Dutch school, a master of light and shadow whose paintings, drawings, and etchings made him a giant in the history of art.

伦勃朗是一位17世纪画家、绘图家、版画家，荷兰学派的最伟大艺术家，他的明暗法的大师，他的绘画、素描和版画使他成为一位艺术史上的巨匠，其画作体裁广泛，擅长肖像画、风景画、风俗画、宗教画、历史画等。