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sinusoidal wave load
相关语句
  正弦波加载
     The results show that the propagation properties of fatigue crack in axle steel is fairly sensitive to the load wave. It is pointed out that in the case of the same driving force (△K) the propagatoin rate of a crack under the rectangular pulse load is faster than that under the sinusoidal wave load,especially in the short crack stage.
     结果表明,车轴钢对加载波形的变化具有一定的敏感性,在相同的驱动力(△K)作用下,矩形波加载的裂纹扩展速率普遍高于正弦波加载的裂纹扩展速率。
短句来源
  “sinusoidal wave load”译为未确定词的双语例句
     We put the two main engineering machine loading which are sinusoidal wave load and step load, and the results indicate that the dynamic responds are satisfied for the needs of the experiments.
     加载工程机械主要的两种加载模式正弦波载荷和阶跃载荷,试验台动态仿真的结果表明系统动态响应性能能够满足试验要求;
短句来源
     This paper presents a study on the growth behaviour offatigue surface cracks in rail steel subjected to alternate sinusoidalwave loads and rectangular pulse loads. The results show that the crackunder the rectangular pulse load grows 5 times on an average and 92times at the culmination faster than that under the sinusoidal wave load.
     研究轨钢表面裂纹在正弦波和矩形波载荷交替作用下的扩展规律,结果表明轨钢在冲击载荷作用下,表面裂纹扩展速率比正弦波的扩展速率平均快5倍,极限时相差92倍。
短句来源
     The research results show that the real expanded multiple of ski-jump current bent under the function of stream fluctuating load is analogous to the situation under the function of sinusoidal wave load after one or two periods.
     研究成果表明,挑流排架在水流脉动载荷作用下的实际扩大倍数与正弦波载荷作用下经过1~2个周期时的情况相当。
  相似匹配句对
     (2)the output of sinusoidal wave;
     (2)输出正弦波;
短句来源
     Non-sinusoidal Wave Crating Ciercuit
     非正弦波形发生电路研究
短句来源
     Simulation of Wave
     海浪的模拟仿真
短句来源
     On Wave Picture
     波的图像所反映出的一系列问题
短句来源
     2. the principle of equal amount of action of half-wave sinusoidal load;
     (2) 半波正弦荷载的等作用量原则;
短句来源
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This paper presents a study on the growth behaviour offatigue surface cracks in rail steel subjected to alternate sinusoidalwave loads and rectangular pulse loads. The results show that the crackunder the rectangular pulse load grows 5 times on an average and 92times at the culmination faster than that under the sinusoidal wave load.The numerical analysis of the notch stress field and the experimentalresults both confirm that the growth rate of fatigue surface cracks canbed escrobe by the well--known paris...

This paper presents a study on the growth behaviour offatigue surface cracks in rail steel subjected to alternate sinusoidalwave loads and rectangular pulse loads. The results show that the crackunder the rectangular pulse load grows 5 times on an average and 92times at the culmination faster than that under the sinusoidal wave load.The numerical analysis of the notch stress field and the experimentalresults both confirm that the growth rate of fatigue surface cracks canbed escrobe by the well--known paris relationship. The estimated valueof rail life agrees with the real life.

研究轨钢表面裂纹在正弦波和矩形波载荷交替作用下的扩展规律,结果表明轨钢在冲击载荷作用下,表面裂纹扩展速率比正弦波的扩展速率平均快5倍,极限时相差92倍。缺口应力场的数值分析和疲劳裂纹扩展实验均证实表面裂纹扩展速率可用帕里斯(Paris)公式描述,其估算的寿命值和实际值相吻合。

Using the technology of the electrical potential method to measure the crack lengths,we discuss the effect of load wave on the rate of long and short fatigue crack growth in axle steel.The results show that the propagation properties of fatigue crack in axle steel is fairly sensitive to the load wave.It is pointed out that in the case of the same driving force (△K) the propagatoin rate of a crack under the rectangular pulse load is faster than that under the sinusoidal wave load,especially in the short...

Using the technology of the electrical potential method to measure the crack lengths,we discuss the effect of load wave on the rate of long and short fatigue crack growth in axle steel.The results show that the propagation properties of fatigue crack in axle steel is fairly sensitive to the load wave.It is pointed out that in the case of the same driving force (△K) the propagatoin rate of a crack under the rectangular pulse load is faster than that under the sinusoidal wave load,especially in the short crack stage.And this is also demonstrated by the fractographic with SEM.

采用电位法裂纹测量技术与断口形貌分析相结合,讨论了加载波形对车轴钢长、短裂纹扩展速率的影响。结果表明,车轴钢对加载波形的变化具有一定的敏感性,在相同的驱动力(△K)作用下,矩形波加载的裂纹扩展速率普遍高于正弦波加载的裂纹扩展速率。从断口形貌SEM照片上也证实了这一点。

>=The discharging gates of Weishihang Irrigated Areas of basin of Huaihe River are always adopted dissipation by ski-jump current and with the larger change amplitude of downstream water level of Huaihe, flow patterns of selecting-stream bent are free ski-jump current and hydraulic jump. Because of the function of stream fluctuating load, ski-jump current bent may produce greater vibration and it is necessary to carry on experimental study of current shake of ski-jump current bent in order to measure the safety...

>=The discharging gates of Weishihang Irrigated Areas of basin of Huaihe River are always adopted dissipation by ski-jump current and with the larger change amplitude of downstream water level of Huaihe, flow patterns of selecting-stream bent are free ski-jump current and hydraulic jump. Because of the function of stream fluctuating load, ski-jump current bent may produce greater vibration and it is necessary to carry on experimental study of current shake of ski-jump current bent in order to measure the safety degree of the project organization. The research results show that the real expanded multiple of ski-jump current bent under the function of stream fluctuating load is analogous to the situation under the function of sinusoidal wave load after one or two periods. On the vertical direction of ski-jump current bent, stiffness is stronger, natural frequency of vibration is much higher, vibration stress is very lower; And on the horizontal direction, stiffness is weak, natural frequency of vibration is consistent with master frequency of stream fluctuating load, vibration stress is stronger. The bent structure should be strengthened with inclined shore, enhance the stiffness of horizontal direction of bent structure, increase the natural frequency of horizontal direction and decrease the vibration stress of horizontal direction.

淮河流域淠史杭灌区的泄水闸多采用挑流消能,由于下游淮河水位变化幅度较大,挑流排架的流态有自由挑流和水跃。挑流排架由于水流脉动载荷的作用可能产生较大的振动,有必要进行挑流排架流激振动的试验研究,以检验设计结构的安全度。研究成果表明,挑流排架在水流脉动载荷作用下的实际扩大倍数与正弦波载荷作用下经过1~2个周期时的情况相当。挑流排架垂直方向刚度大,自振频率远高,振动应力很小;水平方向刚度小,自振频率与水流脉动载荷主频率一致,振动应力较大。排架结构应该用斜撑加固,增加排架结构水平方向的刚度,提高水平方向的自振频率,减小水平方向的振动应力。

 
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