查询词典 track chisel

Drilling track is key factor which decide trenchless success or failure , but controlling drilling track stay around rectifyed phase at the present .guided the theory of force is the key affectting the drilling track ,the paper discuss primary factors on contralling drilling track ,and advance the formulary ahout reckoning deviation force and azimuth force ,expect to achieve the aim that drilling track were controled real time and be anticipated , and have the initiative on drilling track contaolling .

岩层钻进轨迹是决定非开挖成败的关键因素，目前对钻孔轨迹的控制仅仅停留在被打纠偏层面上，本文在力是影响钻进轨迹本质因素理论指导下，对影响岩层钻进轨迹控制的因素进行了理论探讨，并针对造斜力和变方位力提出了计算模式，希望最终能实现钻孔轨迹的实时监控与调整，变被打纠偏为主动钻进。

A new mathematical model is put forward numerically to simulate the wheel ovalization.. In the numerical simulation, the dynamic model of a half railway vehicle coupled with a tangent track is employed. Using the new numerical method investigates vehicle-track coupling system dynamic responses including lateral and vertical displacement of wheelsets and the vehicle, lateral and vertical vibration acceleration of the track at different phase angle of the two side wheels of the same wheelset, which are compared with that of the traditional model. The numerical results show that the discipline and frequency of dynamic responses are accordant, amplitude and phase of lateral dynamic responses are different. It is concluded the traditional track geometric irregularity excitation model does not simulate the effect of periodic wheels ovalization on vehicle-track coupling system dynamic behavior truly, the new model is more accurate and reasonable.

本文研究了车轮二阶周期性非圆化—椭圆化，建立了一个新的模拟车轮椭圆化的数学模型，结合车辆－轨道空间耦合动力学模型，计算了同一轮对左右车轮不同相位和车轮椭圆度下轮对和车体的横、垂向位移，钢轨横、垂向振动加速度，并与传统模型计算结果作了对比，分析表明两种模型的动力响应变化规律和频率一致，但横向动力响应幅值和相位均存在不同程度不可忽略的差异，因此传统的轨道几何不平顺激励模型不能真实模拟车轮的周期性椭圆化对车辆－轨道耦合动态行为的影响，而本文模型更能反映实际椭圆车轮与钢轨接触情形，计算方法准确而合理。

Analysis result shows that the dynamic interaction between wheel and rail and the rail-pad force of the strengthened track are little bigger than those of the unstrengthened track,the safety grades of the tracks are same,the strengthened track can benefit to decrease the displacements of all components of track structure obviously,to restrain the deformation of track effectively,and to reinforce the stability of railway,especially the lateral displacement and the gauge enlargement of the strengthened rail are about 33% of original rail.

分析结果表明：强化后轨道结构的轮轨动态相互作用力及轨枕支点压力均较强化前的相应值略大，但皆属相同安全合格等级；强化轨道结构位移大幅度降低，有效抑制轨道结构变形，增强线路稳定性，尤其是钢轨横向位移和轨距动态扩大量较强化前下降十分显著，前者仅约为后者的1/3左右；强化轨道也有利于降低轨下结构振动和减轻列车提速后对轨下基础的破坏。

The vibration response of the viaduct structure by steel spring bearing, the viaduct structure by laminated rubber bearing, the track structure by Colon egg vibration damper, the track structure by steel spring damper and the ballast bed track structure are simulated through vehicle passed. The vibration parameter of the viaduct is optimized and the vibration transfer function characteristic of the ballast bed track structure and the track structure by steel spring damper are compared.

对钢弹簧支座高架桥结构、普通板式橡胶支座高架桥结构、克隆蛋减振器式轨道结构、钢弹簧浮置板减振器式轨道结构和普通碎石道床轨道结构在列车运行作用下的振动响应进行了仿真研究分析，对高架桥结构隔振参数进行了优化，比较了浮置板式和普通碎石道床轨道结构的振动传递特性。

In order to allow track maintenance personnel to determine impacts of track irregularities on traffic safety and to execute maintenance on dangerous sections, This study provides an analysis method with the application of ADAMS/Rail, modified train model suitable for track with a track gauge of 1067mm, and model track made to parameters actually taken from a section of measured irregularities of Taiwan Railway Administration.

为便於轨道养护工程人员研判轨道不整对行车安全的影响，对危险地段进行维修工程，本研究提供一套分析方法即利用套装软体ADAMS/Rail及修改适合1067公厘轨距轨道之列车模型，并以实测台铁某段轨道不整值为轨道模型，利用软体内建轮-轨互制行为进行列车动态分析，藉以了解轨道系统各部份的力学行为，尤其针对运输问题中最重要的安全性问题进行分析。

The effect of improvement on planosol by the application of the four types of ploughs suggest that there were hard clods between two chisel if the cultivate depth is less than 40cm; there are hard triangle clods between two chisel if the complete deep cultivate reach 40 cm and soil hardness is 20～40kg/cm〓 if the cultivate horizon is shallow or below 20 cm, the expected effect of improvement will not be obtained.

3应用三段式心土犁的土效果。不同改土机械改良白浆土对比试验结果表明：各种深松耕深不足40cm，且深松铲之间存在硬隔，达不到预想的改土效果。

Included also is a 16-page instruction manual that covers setting up the lathe, mounting a work piece, chisel techniques, standard turning operations, chisel sharpening and an exploded view parts diagram.

还包括一个16页的指导手册，包括设立车床，安装一个工作片，凿技术，标准，至于行动，凿激化和爆炸检视零件图。

Wood chisel, carving tools, wood turning chisel, plane, tower pincer, carpenter's pincer.

8B01 木工凿，雕刻刀，车木刀，刨铁，扎线钳，胡桃钳。

Chisel Bit Our compony's chisel bit with stable high quality, annual output reach to 3 million -4 millions, and has been the China's largest ven...

我们公司一字钎头产品质量稳定，年产量达到300万－400万只，是中国最大的一字钎头产销商。

The expected life of new series of bit is 2 to 4 times of that of the chisel bit and button bit, and the price is only one fifth to one third higher than that of chisel bit and button bit.

新系列钎头寿命为一字、球齿钎头寿命的2～4 倍，而价格仅比同直径一字、球齿钎头高1／5～1／3。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。