Analyses results show that the materials, tension and rigidity of wires, speed of trains, wave speed, and lift forces are primary factors that affect fatigue life of contact wires.
分析结果表明，接触导线线质、张力和刚度以及列车运行速度、波动传播速度和抬升力是影响导线疲劳可靠性的主要因素。
Based on the mechanics of wave, the expression of water wave propagation velocity under the action of gravity is deduced and the effect of surface tension on small wave is analyzed.
本文根据波动理论推导出在重力作用下波的传播速度表达式，分析了微小波动中表面张力的作用。
Profile (flatness) : after the establishment of coiling tension, there shall be no wave in the F4 mill stand exit in visual.
板形(平直度)：在卷取张力建立后，F4机架出口带材目测无波浪。
Based on the basis of traveling wave energy absorption method, the formula of allow tension increment of anchorage cable under condition of the blast wave shock is derived.
依据行波能量吸收方法推导出了锚杆受爆炸波冲击时所需张力增量计算公式。
The method of reasonable tension control will reduce the wave of the tension, so that the tension which warp bears stabilizes, so avoiding the probability of starting marks and so on.
合理的张力控制方法将减小张力的波动，使经纱承受的张力平稳，从而避免开车痕等。
The split process caused by a reflected tension stress wave was reproduced. The simulated phenomena are in good agreement with the experimental results.
模拟现象与实验结果相符，动态平衡时的应力分布与有限元结果基本一致。
The surface wave of wire rope and the metal core of rope to be free to other place is due to molding rate too high, bigger fluctuation, uneven strand tension forces and cl…
钢丝绳表面浪形和金属绳芯外逃是由于成型率过高、波动偏大，各股捻制张力不均匀和顺向捻制不到位。
The surface wave of wire rope and the metal core of rope to be free to other place is due to molding rate too high, bigger fluctuation, uneven strand tension forces and cl…
钢丝绳表面浪形和金属绳芯外逃是由于成型率过高、波动偏大，各股捻制张力不均匀和顺向捻制不到位。
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