影响岩石疲劳寿命的主要因素是周期荷载的上限应力和幅值。
The amplitude and maximum of cyclic load are the most important effect factors on fatigue lifespan of rock.
文章建议研究常规试验的强度值、流变试验的长期强度与周期荷载下的强度之间的关系。
It is propose in this paper that the relation of the strength obtained in conventional tests, the long-term strength in rheological tests and the strength under cyclic loading should be studied.
本文通过对饱和尾矿砂在振动单剪仪上的排水试验，量测了试样在周期荷载下的体积变化。
This paper presents the drained test of saturated tailing sand in dynamic simple shear apparatus by measuring volume change of the sample under cyclic loading.
根据算例，研究了在周期荷载作用下，地基中的超静孔隙水压力、位移的幅值随动力渗透系数变化的一般规律。
Finally, the influence induced by variation of dynamic coefficient of permeability on soil displacement and stress under harmonic vibration load is investigated.
还给出了梁及框架在轴向周期荷载作用下的几何非线性动力稳定性问题的计算结果，揭示了考虑结构非线性情况下动力稳定性的基本特征。
Applying the method to beam or frame structures un-der the axial period loadings, the geometric non-linear dynamic stability results are obtained. Fromthe results, the basic characteristics...
还给出了梁及框架在轴向周期荷载作用下的几何非线性动力稳定性问题的计算结果，揭示了考虑结构非线性情况下动力稳定性的基本特征。
Applying the method to beam or frame structures un-der the axial period loadings, the geometric non-linear dynamic stability results are obtained. Fromthe results, the basic char...
当为您定做扭转弹簧时，工作环境，生命周期和弹簧荷载我们都会考虑。
Operating environment, life expectancy, and spring load are taken into account when designing your custom torsion springs.
采用桩土分析法，计算分析在一个荷载周期内，弹性路基内各研究节点的位移、竖向应力、桩土应力比的瞬态响应。
Then, transient response of vertical displacement, vertical stress and pile-soil stress ratio of some nodes in the elastic subgrade are computed in one single load cycle.
通过对不同结构方案进行分析，总结在竖向、水平荷载作用下，结构周期、位移及内力变化的规律。
The structure period, displacement and internal force of this kind of structure are studied based on an example. The role of strengthened storey is analysed for engineering design.
为更加合理地确定锥体平台结构的疲劳冰荷载，对冰力幅值和周期进行了联合概率分析。
The joint probability distribution of them is analyzed, which is great valuable to construct the fatigue ice-load for offshore platform with ice-broken cone.
结果建立一种适合低周期反复荷载作用下的损伤模型，并进行了损伤与弦转角的关系分析，从而对其损伤机理、损伤过程及损伤的影响因素有更进一步的了解。
The damage model has been made and the analysis of the relation damage and turn Angle has been studied to give a better understanding of the damage theory, damage course and damage effect factors.
轴系装置由于不仅具有惯性而且具有弹性，因此在周期性荷载作用下，会产生扭转振动，甚至于产生拍振。
Under the periodical loads, the shaft must have the torsional vibration, named "beat", because the shafting has not only inertia but also elasticity.
波浪荷载是海洋工程中一种重要的基本荷载，是海洋地基土受到最频繁的周期性动荷载。
Wave load is one of the important loads in ocean engineering, which is the most frequent load in the sand foundation of offing.
本文还定量分析了海底土体对波浪周期性荷载的动力响应，并对其不稳定性机制进行了探讨。
This article quantitatively analyses the dynamic response of seafloor soil under the cyclic loading of waves and discusses the instable mechanism of soil.
本文通过对DTC-199型周期扭转荷载三轴仪进行简单的改造后，可以较好的模拟压实黄土地基或路基在受到循环动荷作用前所处的复杂初始应力状态。
This paper reformed the DTC-199 Type-torsional cyclic load triaxial apparatus, it can better simulate complex initial stress conditions of compacted loess foundation or sub-grade.
本文通过对DTC-199型周期扭转荷载三轴仪进行简单的改造后，可以较好的模拟压实黄土地基或路基在受到循环动荷作用前所处的复杂初始应力状态。
This paper reformed the DTC-199 Type-torsional cyclic load triaxial apparatus, it can better simulate complex initial stress conditions of compacted loess foundation or sub-grade.
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