Internal bolts subject to vibration, fluctuating load, impact load or dynamic load shall be protected against loosening. Double nuts, unti-loose washers, tack welding, etc. shall be used.
可能受到振动、波动载荷、冲击载荷或动力载荷的内部螺栓应加以保护防止松动。可采用双螺母、防松动垫圈、点焊等。
Second is elastic, it is to point to carpet after a certain number of dynamic load after the impact, reduce the percentage of thickness.
其次是弹性，是指地毯经过一定次数的动荷载碰撞后，厚度减少的百分率。
The thought of this paper is to discuss on and analysis to dynamic response of HSMS under impact load, and estimate its mean life based on noted stress fatigue design method.
本文的主导思想是讨沦和分析冲击载荷下螺旋弹簧质量系统的动态响应，并应用名义应力疲劳设计方法估计其平均寿命。
This article discusses the dynamic computation of the closed cylindrical shell under impact load.
本文讨论闭合圆柱形壳体在冲击荷载作用下的动力计算。
Pendulum impact testing machine is on the metal material to resist the impact of dynamic load performance testing equipment.
摆锤式冲击试验机是对金属材料在动负荷下抵抗冲击性能进行检测的仪器。
Then, the matching design can be accomplished by means of impact load spectrograms so as to perform the optimal structural design and to make further improvement on dynamic strength program.
再利用冲击载荷谱图作为实现匹配设计的技术途径，以期实现最佳的结构设计，从而进一步完善了动力强度设计程序。
A dynamic response of circular ring in different supported conditions under impact load is investigated by a dynamic photoelastic method in this paper. Some experimental results are presented.
本文用动光弹方法研究冲击载荷下不同支撑条件的圆环的动态响应，给出部分实验结果。
Dynamic character of oil testing pipe shock absorber system under impact load were searched which were based on finite element analysis software ANSYS in this paper.
本文基于有限元分析软件ANSYS研究冲击载荷下石油测试管柱减振系统的动力学性质。
The test result shows that the dynamic load factor of the suddenly applied load such as the inertial load and the impact load is larger than 2, and so cannot be ignored.
测试结果表明：惯性载荷和冲击力等突加载荷的动荷系数都大于2，因此是不能忽略的。
The problem was the dynamic reaction of the whole system consisting of piles, soil and tunnel under the impact load of pile driving.
该问题的本质是桩—土—隧道三者组成的体系在冲击荷载下的整体动力响应。
Dynamic response analysis of some models of pile with material loss for impact load has been completed by three - dimensional explicit clement method.
文中设定了几个简单的分析模型，利用三维显式有限元法，对有局部材料缺陷桩完成了冲击荷载作用下的动力反应分析。
Impact experiment equipment was used to study the dynamic mechanical properties and characterization method of a new kind of damping aluminum alloy under impact load.
采用冲击实验装置研究了新型阻尼铝合金材料在冲击载荷作用下的动态力学性能及表征方法。
The problem of dynamic initiation for crack-containing plate of I-mode under low-velocity impact load is investigated in this paper.
研究了含裂纹板在低速率冲击载荷作用下的互型动态起裂问题。
On the other hand, as an instant impact load with controllable energy, dynamic compaction is a good test in-situ for the study of soil dynamics.
另外，作为一种能量可控的瞬态冲击荷载，强夯施工可以作为一个可控的土动力学原位试验。
It is concluded from the theoretic analysis that dynamic load and resident property of moving material are the main factors that give an impact on increase in chain moving velocity.
通过理论分析得出结论：动载荷、物料运动的滞后性是影响链条速度提高的主要原因。
The 16 steel tube-confined concrete short columns are selected and their dynamic response under axial impact load are studied.
对16根钢管混凝土短柱进行了轴向冲击试验研究。
Based on the one-dimensional wave propagation theory, a simplified dynamic model was presented to analyze the failure and energy absorption of the tubes under impact load.
根据一维应力波传播的理论，提出了圆柱壳受轴向撞击破坏的简化模型，分析了这一破坏过程中的能量变化。
Based on the one-dimensional wave propagation theory, a simplified dynamic model was presented to analyze the failure and energy absorption of the tubes under impact load.
根据一维应力波传播的理论，提出了圆柱壳受轴向撞击破坏的简化模型，分析了这一破坏过程中的能量变化。
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