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1)  strength of rail joints
钢轨接头强度
1.
A finite element method to calculate the strength of rail joints of railway track is presented.
提出钢轨接头强度计算的有限元方法。
2)  rail joint
钢轨接头
1.
Dynamic computational model of vehicle/track vertical coupling system is developed by means of finite element method for analyzing the effects of joint gap value and running speed on the vibration caused when the vehicle passing a rail joint.
为了分析轨缝值与行车速度对车辆通过钢轨接头时产生的振动与噪声的影响程度,利用有限元方法,建立了车辆—轨道垂向耦合动力计算模型;该模型的车辆采用整车模型,共10个自由度;轨道结构采用3层弹性点支承有限长欧拉梁模型,共402个自由度;系统的激励大小可由轨缝值和行车速度推导出来,并运用赫兹非线性接触理论计算轮轨之间的相互作用力。
2.
A three dimensional calculation model of rail joint is proposed using finite element software ANSYS.
利用有限元软件ANSYS建立了钢轨接头的三维计算模型,分析了螺栓转矩变化对接头区钢轨应力、接头夹板应力和螺栓应力的影响。
3.
Using this model, the dynamic responses of the rail joints are calculated, which provides the theoretical basis for raising speed of Jing Jiu Railway.
运用该模型 ,对不同列车速度条件下钢轨接头的动力响应进行了计算 ,为京九线路的提速提供了理论依据。
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3)  play of rail joints
钢轨接头缝
4)  rail welded joints
钢轨焊接接头
1.
Research purposes: By analyzing the effect on impact force between wheel and rail by track irregularity,technical evidences on limit of irregularity on rail welded joints are provided.
研究目的:为了研究轨道不平顺对轮轨作用力的影响,从而为钢轨焊接接头不平顺限值提供技术依据。
5)  bond weld
钢轨接头焊接
6)  Joint strength
接头强度
1.
The influences of welding heat input on joint strength were analyzed.
采用钨极氩弧焊的方法对30%SiCP/LD2高体积分数复合材料进行了焊接实验,研究了在同种TIG焊焊接规范参数下LD2-LD2、LD2-30%SiCP/LD2、30%SiCP/LD2-30%SiCP/LD2三种不同材料组合焊接性差异,分析了焊接热输入对接头强度的影响。
2.
The experimental results show that for industrial purity Ti and Ti 6Al 4V, respectively, the overlap brazing joint strength are 418.
结果表明:用Ti-Cu-Ni钎料钎焊TA2和Ti-6Al-4V钛合金的搭接接头强度分别是418。
3.
The temperature and time range of brazing through the wetting experiment were confirmed, and the effect of brazing conditions on the joint strength through the shear experiment was discussed.
通过对钎料润湿性的研究确定钎焊试验的温度和时间范围 ;通过剪切试验研究了钎焊工艺参数对接头强度的影响。
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补充资料：表光合强度(见光合强度)


表光合强度(见光合强度)
forecast of sowing or transplanting time

b iaoguanghe qiangdu表光合强度见光合强度
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
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