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The assembly of journal and plain bearing liner space is too little, force of organic still oil pressure is small it is the crucial index that affects lubricant result, make lubricate because of lacking engine oil between crankshaft and plain bearing liner and bite dead invalidation, include to be pulled badly, lack lube, layer of alloy of dry attrition generation is fused, grind sliding surface to did not maintain the oily film of certain ply, and all sorts of local overload exhaustion are destroyed, cavitation erosion and V form are destroyed etc, through technology of him director diesel locomotive old experience reachs the analysis of pair of its breakdown reasons, put forward precautionary measures especially. As a result of,the burns caustic mechanism plain bearing liner to burn caustic mechanism of 1 plain bearing liner is the lube film burst between journal and plain bearing liner, cause plain bearing liner and crankshaft generation clash, below high temperature, high pressure and high rotate speed, the wear-resisting alloy layer of plain bearing liner wears away prematurely or fuse, cause plain bearing liner and crankshaft to stick thereby bite, can make the steel back of plain bearing liner and Kong Zhong produces whirligig, inlet port is jammed, carry on the back by steel again with the friction of aperture causes high temperature to make plain bearing liner burned-out further, can cause bolt to break off, happen swing a malign accident that pounds cylinder body of bad internal-combustion engine.

轴颈和轴瓦的装配间隙太小，还有机油压力低是影响润滑效果的关键指标，使得曲轴和轴瓦之间因缺少机油润滑而咬死失效，包括严重拉伤，缺少润滑油，干摩擦产生合金层熔化，磨滑面没有保持一定厚度的油膜，以及各种局部过载疲惫破坏，气蚀和V形破坏等，通过本人主管内燃机车技术多年经验及对其故障原因的分析，特提出预防办法。1轴瓦的烧损机理轴瓦烧损的机理是由于轴颈和轴瓦之间的润滑油膜破裂，导致轴瓦和曲轴产生摩擦，在高温、高压和高转速下，轴瓦的耐磨合金层过早地磨损或熔化，从而引起轴瓦和曲轴粘咬，会使轴瓦的钢背和座孔中产生旋转运动，进油孔被堵塞，再由钢背和座孔的磨擦进一步引起高温使轴瓦烧坏，并会造成螺栓折断，发生甩出捣坏内燃机缸体的恶性事故。

I am determined to use their own action to accept the party's on my tests, I solemnly party to apply: I volunteer to join the Chinese Communist Party support the party's program, to comply with the Party Constitution, fulfill duties of party members to implement the Party's decisions, strictly observe Party discipline, the Conservative Party's secrets, loyal to the Party, and actively work for the communist struggle for life, ready to sacrifice everything for Party and the people, and never betray the party.

我决心用自己的实际行动接受党对我的考验，我郑重地向党提出申请：我志愿加入中国共产党，拥护党的纲领，遵守党的章程，履行党员义务，执行党的决定，严守党的纪律，保守党的秘密，对党忠诚，积极工作，为共产主义奋斗终身，随时准备为党和人民牺牲一切，永不叛党。

The plastic hinge model of perforated liner casing is built up to calculate the collapse pressure according to the strength and deformation behavior of perforated liner casing subjected to external pressure. The calculation equations of collapse pressure of perforated liner casing with initial ovalization are deduced by energy method. The influences of phrase angle, diameter of perforation, shot density, initial ovalization, diameter-thickness ratio and yield stress on the collapse pressure of perforated liner casing are studied. The model and equations are used to calculate the collapse pressure of an actual perforated liner casing as example.

摘摇要：根据煤层气完井筛管受力特点建立了筛管受力的塑性铰模型，利用能量法推导出带有初始椭圆度筛管抗挤强度的计算公式，分析了相位角、射孔直径、射孔密度、初始椭圆度、径厚比和屈服强度等影响因素对筛管抗挤强度的影响规律，并对某煤矿使用的筛管抗挤强度进行了计算，与已有的实验数据和有限元计算结果进行了对比。

The plastic hinge model of perforated liner casing is built up to calculate the collapse pressure according to the strength and deformation behavior of perforated liner casing subjected to external pressure. The calculation equations of collapse pressure of perforated liner casing with initial ovalization are deduced by energy method. The influences of phrase angle, diameter of perforation, shot density, initial ovalization, diameter-thickness ratio and yield stress on the collapse pressure of perforated liner casing are studied. The model and equations are used to calculate the collapse pressure of an actual perforated liner casing as example.

根据煤层气完井筛管受力特点建立了筛管受力的塑性铰模型，利用能量法推导出带有初始椭圆度筛管抗挤强度的计算公式，分析了相位角、射孔直径、射孔密度、初始椭圆度、径厚比和屈服强度等影响因素对筛管抗挤强度的影响规律，并对某煤矿使用的筛管抗挤强度进行了计算，与已有的实验数据和有限元计算结果进行了对比。

The external diameter of a quartz liner is determined to be 36-46mm, the inner diameter to be 32-40mm and the length of the liner to be 1.45-1.85m for the process of PCVD. Parameters of a processing technology are that the high frequency power of a microwave resonator is controlled to be 6KW-15KW and the deposition temperature is 1080-1130 degree Celsius. The variety of mixed air flowing through the liner includes silicon tetrachloride vapor, germanium tetrachloride vapor, high-purity oxygen and Freon. The inside pressure of the liner is 10-15millibar. The air flow rate inside the liner is

取石英衬管的外径为36～46毫米、内径32～40毫米，衬管长度1.45～1.85米，进行PCVD加工；加工工艺的参数为：微波谐振腔的高频功率控制在6KW～15KW，沉积温度1080℃～1130℃，流经衬管管内混合气体的种类：四氯化硅蒸气、四氯化锗蒸气、高纯氧气、氟里昂，衬管的管内压力为10-15毫巴，管内气体流速为30-80米/秒，气体体积流量为4400SCCM-8800SCCM。

Confidential Information shall not include, however, information that is generally known to the public or readily ascertainable from public sources (other than as a result of a breach of confidentiality by a Party or any person or entity associated with a Party), is independently developed without reference to or reliance on any Confidential Information of the disclosing Party, as demonstrated by written records in the receiving Party's possession (which shall be provided to the disclosing Party at the disclosing Party's request), or is obtained from an independent third Party who created or acquired such information without reference to or reliance on Confidential Information of the disclosing Party, as demonstrated by written records in the receiving Party's possession (which shall be provided to the disclosing Party at the disclosing Party's request).

然而机密信息不应包括如下信息：一般被公众所知道的信息，或者易于确定公共来源的信息(除了违反保密义务的一方或者与该方有关的任何人士或实体所导致产生的信息)，在没有参照或者依赖披露方之任何机密信息的情况下，独立开发的信息，如接收方所拥有的书面记录所示，这应当是应当是应披露方的要求而提供给泄露方的，或者(c。是从独立的第三方所获得的信息，所谓的第三方是指在没有参考或依赖披露方之机密信息的情况下，创造或取得该类信息的一方，如接收方拥有的书面记录所示(应披露方的要求，该信息应当提供给泄露方)。

The explosively formed projectile with fins for a cover charge structure by LS-DYNA software which four covers were conglutinated on the liner was studied by three-dimensional numerical simulation. The mechanism of forming EFP with fins was discussed based on the curves of velocity and pressure vs time of the liners. A contrastive analysis was carried out on the three kinds of liners which include big-cone shaped liner, imperfect-sphere shaped liner and arc-cone shaped liner.

采用LS-DYNA对在药型罩上粘附隔板结构形成带尾翼型爆炸成型弹丸(explosively formed projectile，EFP)进行三维数值模拟，从药型罩微元压跨速度和压力的角度初步探讨了形成尾翼型EFP的机理，对同一直径的大锥角型、球缺型和弧锥结合型药型罩形成的尾翼型EFP进行了对比分析，三种结构药型罩均能形成较为明显的尾翼，其中大锥角型药型罩得到的EFP速度最高。

The effects of structural parameters of liner and initiation methods on projectile formation and performance parameters were shown by simulation, the interrelations of structural parameters of liner were preliminarily fixed on, the inner radius of liner R1=(0.55-0.6)D, outer radius R2=(0.58-0.62)D, height H=(0.3-0.35)D, half cone angle α=82°-86°, where D is diameter of liner.

通过模拟计算得到了药型罩结构参数和起爆方式对弹丸成型的影响规律，并初步确定药型罩结构参数间的相互关系：药型罩直径D，内径R1=(0.55~0.6)D，外径R2=(0.58~0.62)D，药型罩高度为H=(0.3~0.35)D，半锥角α=82°~86°。

Thirdly, on the basis of the productivity model of ideal wells , we comprehensively consider the additional pressure caused by different completion methods and establish four structures of multilateral horizontal wells in 8 different completion methods of the actual open hole completion, slotted liner completion,slotted liner completion with external casing packer, open hole downhole gravel pack completion, openhole prepacked gravel liner completion, casing perforated completion, inside casing gravel pack completion, inside casing prepacked gravel liner completion.

在理想井产能模型的基础上，综合考虑不同完井方式所造成的附加压力损失，建立了这四种分支水平井结构在实际裸眼完井、割缝衬管完井、带ECP的割缝衬管完井、裸眼井下砾石充填完井、裸眼预充填砾石筛管完井、射孔完井、套管内井下砾石充填完井、套管内预充填砾石筛管完井等8种不同完井方式下的产能模型。

Combining with the characters of liner industry, the paper set up an evaluation index system. And then 15 liner corporations picked out from top 20s in container liner industry were evaluated synthetically with catastrophe progression method and set pair identical degree analysis method. Based the above evaluation, a contrast analysis between the core competence of the container liner corporation in our country and ones in other countries was conducted.

在此基础上，本文在全球运力排名前20位的大型集装箱班轮企业中选取了15家为研究对象，结合国际集装箱班轮运输业的行业特征，建立了核心竞争力评价指标体系，挑选了突变模糊隶属函数法和集对同一度分析法两种方法，对研究对象的核心竞争力进行了综合评价，并对结果做出了分析，同时，借助于核心竞争力评价指标体系，对我国集装箱班轮企业的核心竞争力状况进行了对比分析。

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。