查询词典 mat-forming

Four-node degenerated shell element and rigid shell element are used in our FEM model.Updated Lagrange formulation and rate form constitutive equation are adopted to solve the problem of large strain and large rotation in sheet forming process.Sheet metal material property is described by plastic anisotropy yielding model and isotropic hardening model.Master surface-slave surface contact model is used to define the contact between tools and blank.Contact constraints are enforced with a kinematic algorithm and friction stress is computed by Coulomb friction law.Dynamic relaxation method is used to treat springback after forming stroke.

四结点蜕化壳单元和刚体壳单元分别用来建立板和模具的有限元模型；更新Lagrange法和速率型本构关系被用来处理板料变形中的大应变和大转动；材料模型采用塑性各向异性屈服与等向强化模型；通过主从面模型定义板料和模具的接触，接触算法采用运动约束法，摩擦力用库仓定律计算；并利用动力松弛法对回弹过程进行了计算。

The forming mechanism and influence factors of elephant skin were discussed based on journal box body, and some critical influence factors such as the preheating temperature of mold, forming pressure etc.

以轴箱体零件为例，探讨了皱纹缺陷的形成机理，分析了其影响因素。理论分析表明：模具预热温度、成形比压是影响铸件质量的关键因素。

The study of ore-forming rules indicates that the shearing force came from interaction of plate-plate is the initial force, which result in remelting of deep rock. Early formed faults and later dome structures provide favourable passage-way for ore-material migrating. Finally due to complete circulate convection, ore-material experience a process of complete differentation and begin to crystal and settle in certain circumstance. In some favourable tectonic zone ore-forming material enriched to deposit.

对成矿机制的研究显示板块作用产生的剪切力是造成区内深部岩石重熔的源动力，而早期形成的断裂体系及后期形成穹窿构造为矿物质的运移提供了有利的通道，在完善的循环对流机制配合下，成矿物质在迁移过程中发生较为充分的分异作用，各类矿物质在相应的物化环境中结晶沉淀，并在有利的构造部位富集成矿。

The process parameters in laser peen forming have great impact on the forming shape of the processed metal sheet.

影响激光喷丸成形中板料最终成形形状的工艺参数众多，为了达到需要的板料变形量及残余压应力层深度，必须对各工艺参数进行优化控制。

Starting from the structure characteristics of the large integral panels,the structure forms and classification of the integral panels are introduced,and the oversea research situation and the developing tendency of the shot peen forming and the creep age forming technolog.

从大型整体壁板的结构特点出发，介绍了整体壁板的结构形式和分类，重点阐述了整体带筋壁板喷丸成形技术和时效成形技术的国外研究应用进展及发展趋势，分析了国内现有整体壁板成形技术的基础和存在问题，特别介绍了国内在ARJ21新支线飞机研制中所取得的最新进展。

The construction of the advanced courses targets should form the good habit of consciously doing Sanda exercises of the students on the level of sport participation and basically establish the concept of life-long physical education;on the level of sport techniques,the students should be familiar with and consciously obey the Wushu etiquette criteria and master adroitly the Sanda basic techniques in common use; on the level of physical health,the focus should be improving the quality of the body and promoting the physical health;on the level of psychological health,the focus should be developing the good character of self-respect and self-confidence and forming the psychological quality of pertinacity,bravery,decisiveness and patriotism;on the level of social adaptability,the focus should be forming the consciousness of competition,the spirit of cooperation and the moral qualities of courtesy,humbleness and honesty.

2对于散打高级课程目标的确立，在运动参与上要培养学生自觉参与散打锻炼的良好习惯，基本树立终身体育意识；在运动技能上要求熟悉并自觉遵守武术礼仪规范，熟练掌握散打中常用基本技术；身体健康方面，要注意提高身体素质，促进身体健康；心理健康上要发展自尊、自信的良好个性品质，培养顽强、勇敢、果断的心理品质和爱国主义情感；社会适应上培养较强的竞争意识、合作精神和明礼、谦恭、诚信的良好品德。

Base on above studies, some conclusions were obtained as follows:(1) ore-forming background of the studied ferromanganese crusts are mainly controlled by intensity of Antarctic Bottom Waters and variations of material source;(2) it is confirmed that the ferromanganese crusts are mainly hydrogenetic and their composition are affected by volcanic and continental material simultaneously; there are no obvious phosphatization reconstruction and element reaction occurred in them, so they have important paleoceanological significance;(3) from researches on element occurrence modes in the new-type ferromanganese crusts and the lying sediments, it is proposed that there is no great biological affection on the crusts formation and their composition mainly came from the adsorptive action of the ferromanganese oxides in them;(4) two major types of ore-controlling factors are identified through compilation of ore-controlling factors, which are geological and oceanic factors;(5) considering the long-term variation trends of the crusts composition, combing the U-series and 10Be isotope dating results, it is proposed that the ore-forming processes of ferromanganese crusts in the studied areas can be divided into three major stages (5.6~2.8 Ma, 2.8~2.7 Ma and since 2.7 Ma), and then the activities of AABW since the Late Miocene, changes of input flux coming from volcanic and continental material are confirmed.

通过研究，得出如下结论：(1)研究区铁锰结壳的成矿背景主要受控于南极底流强弱及物源供给的变化；(2)证实铁锰结壳主要为水成成因，同时其物质组成也受一定程度的火山和陆源物质的影响；结壳自形成以来没有遭受到明显的磷酸盐化等成岩后期改造和元素再迁移，具有重要的古海洋学意义；(3)通过新型铁锰结壳及下伏沉积物元素赋存状态的研究，认为生物作用对研究区结壳的形成并没有很大的直接影响，其物质成分主要来自于结壳中铁锰氧化物的吸附作用；(4)在控矿要素的研究中，归纳出了地质与海洋两大类结壳控矿要素；(5)根据结壳成分长周期变化趋势，结合铀系和10Be测年结果，将研究区结壳的形成过程划分为三个主要阶段(5.6~2.8 Ma，2.8~2.7 Ma和2.7 Ma以来)，并确定了晚中新世以来研究区南极底流的活动情况、火山和大陆来源物质输入量的变化。

The forming mechanism of dihydrophenophosphazine by the interaction of Ph〓NH and PCl〓 was studied, and the possible forming mechanism of spiro phosphonium chloride in the same reaction system was also proposed.

讨论了二苯胺与三氯化磷的成环机理以及反应过程中螺磷杂环化合物的形成机制，提出5，10-二氢磷杂吖嗪-10-氧化物存在类"烯醇—酮式"互变异构现象。

Anti-hot stamping film forming can only be carried out in the plane, while the aluminum vacuum forming can be carried out in the plane and concave.

烫印膜反烫成型只能在平面上进行，而真空镀铝成型可以在平面及凹面内进行。

An image forming apparatus includes a plurality of functions related to an image forming process.

本发明的图像形成装置包括与图像形成处理有关的多个功能。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。