振动荷载及动水力对下层土体密实度影响较静力荷载明显。
Vibrating load and dynamic waterpower compacts soil obviously than static load.
以此为基础，建立了列车振动荷载的分析模型，确定了列车振动荷载的数定表达式。
And then, the loading analysis model for the train vibration was established and the mathematical expression was obtained.
工程中对海底相近土层，可参考本文研究结果对其振动荷载作用下的强度变化进行初步定量分析。
The study results in this paper provide a reference for preliminary quantitative analysis of strength change of similar subsea clay layer in offshore engineering under the action of vibration load.
据此，研究了北麓河试验段路基冻融状态、列车行驶速度、轨缝宽度对路基列车行驶振动荷载的影响。
Subsequently, the effects of subgrade freeze-thaw condition, running speed and width of rail gap on the vibratory load from trains were investigated.
结构物对爆破振动荷载的动态响应，是其对于不同优势频率的细节信号的不同的动态响应的叠加的结果。
Under blasting vibrating load, the dynamic response of the structure results from the superposed results of its dynamic response to various dominating frequency detail signals.
文章针对明孝陵四方城在车辆振动荷载下的安全性问题，应用有限元软件ANSYS进行了数值模拟分析。
In order to deal with the security of SIFANG CITY under vibratile load of busses, this paper does a simulative analysis for it with ANSYS.
本文首先介绍了列车振动荷载产生和作用的机理，轮轨耦合动力学分析模型，轮轨接触模型和轮轨不平顺模型。
This paper introduces the producing and acting mechanics of the train vibration loads, wheel-rail couple dynamic model, wheel-rail contact model and irregularity model.
利用加载车辆的竖向冲击作用，激起桥梁的竖向振动，简称“跳车试验”，这种方法在动力荷载试验中广泛使用。
Using loads vehicles' vertical shock effect, arouses the bridge the vertical vibration, the abbreviation "jump experiment", this method in dynamic load experiment widespread use.
考虑到地基振动对建筑物产生的直接影响，本文对移动荷载引起的地基响应作了详细的研究。
Taking account of the direct effect of ground vibration on buildings, the ground responses caused by the moving loads is studied in detail.
分析了水动力荷载与闸门振动特性。
Characteristics of hydrodynamic load and gates vibration are analyzed.
讨论了高层建筑结构竖向荷载对水平振动的影响。
The effects of vertical loads on horizontal vibration have been discussed.
根据轨道加速度测试数据和分析车辆体系的振动，得到了列车荷载的模拟数定表达式。
A frequency spectral analysis was performed and a simulated deterministic expression of train loading was obtained by analysing the vibration of the carriage system.
为判断半刚性基层振动压实能否造成下承层的早期破坏，对半刚性基层在移动—振动压实荷载作用下的下承层动态应力响应进行分析。
The dynamic stress response of the lower course by moving-vibrating compaction on semi-rigid base was analyzed to judge whether it caused early wreckage to the lower course.
计算表明，基础弹性突变对梁的振动有较大影响，其影响随着移动荷载速度的增加而增加。
The computations show that the foundation elasticity stiffness abrupt change has greater influences on beam vibration. This influences increase with increase of the velocity of the moving loads.
脉动压力随机荷载分析。 解决脉压振动数值分析计算所需的脉动压力问题。
Pulsating pressure of water analysis for the needing of load in vibration response analysis.
冰的连续挤压引起柔性结构的剧烈振动表明冰荷载的动力性质和对该问题采取对策的必要性。
The intensive vibration of flexible structures induced by continuous crushing of ice indicates the dynamic nature of ice loads and the necessity of taking countermeasures to solve this problem.
但是若考虑到结构疲劳，或者需要结构有较好的稳定性时，则需要对结构进行详细的风荷载计算及振动分析。
It needs to detailed calculate wind load and analyze vibration, taking into account fatigue and stabilization in structure.
应用有限差分法求解球壳振动的振幅和外加荷载之间的微分关系，得到了球壳振动的时程和相图。
The time history curves and the phase diagram for the oscillation are obtained by solving the differential relation between vibration amplitude and tensile load with finite difference method.
由计算结果可以看出，该方法对动力系统在时间相关荷载激发下的随机振动分析是十分有效的。
These results illustrates the effectiveness of the method to the problems related with excitations correlated in time domain.
基于随机轨道粗糙度和车桥偶合单元，提出了大跨桥梁移动车辆荷载作用下随机振动的计算模式。
Based on random rail roughness and vehicle-bridge coupling element, a method is proposed for calculating random vibration of long span Bridges under moving vehicles in this paper.
通过数值计算给出了地基表面振动的动力时程和三维波动场的分布，发现当移动荷载的马赫数接近或大于1.0时地基中产生明显的波动传播现象。
The time histories of ground responses and wave motions are presented, and it was found that significant wave propagations are generated when Mach number of moving load approaches or exceeds 1.0.
通过模型梁试验，建立起简支梁在附加荷载作用下振动特性与破损模态之间的关系。
Through the test of model beam, we build the relationship between characteristics of vibration with attached load and its damaged mode.
本文采用离散理论求得索桁架的振动方程，进一步可求得在随机风荷载作用下索桁架结构的振动频率及其位移响应。
This paper has worked out the vibration equation of cable truss by treating it as a discrete system and solved the vibration frequency and the displacement responses under stochastic wind loading.
经过对风荷载这种有色噪声进行白噪声滤波，桅杆结构的风致振动描述为白噪声激励下的随机振动。
After color noise as wind load is generated from white noise filter, wind-induced vibration of guyed masts is described as random vibration under white noise excitations.
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.
利用杆件结构有限元动力分析计算，并通过模型梁试验，建立起简支梁在附加荷载作用下振动特性与破损模态之间的关系。
Through beam structure finite unit dynamic analysis and experiment of RC model beam, we build the relationship between beam bridge attached load vibration characteristics and damaged model.
另一方面，钻爆法仍然是地下工程开挖的主要施工方法，围岩在动态荷载作用下的振动响应也是一个不可忽视的问题。
On the other hand, drilling and blasting are main construction method of the underground project excavation, it can't be ignored that the vibration response of surrounding rocks on dynamical loads.
振动加速度峰值受轮轴荷载的影响较大，基本上呈线性增加趋势；而列车长度对振动加速度的影响较小。
The effects on the ground vibration by the factors such as the length, the load and the speed of the train are analyzed.
通过建立2.5维有限单元结合薄层单元方法，研究了接近或超过临界速度的移动荷载作用下地基三维振动问题。
A hybrid method of 2.5 dimensional finite element and thin-layer element was developed to study dynamic ground responses due to moving loads.
通过建立2.5维有限单元结合薄层单元方法，研究了接近或超过临界速度的移动荷载作用下地基三维振动问题。
A hybrid method of 2.5 dimensional finite element and thin-layer element was developed to study dynamic ground responses due to moving loads.
应用推荐