dynamic amplification

With the riding quality evaluation criterions, the simplified calculation of dynamic amplification factor for asphalt pavements and concrete pavements are both gained.

然后，结合路面行驶质量评价标准，分别提出了沥青路面和水泥混凝土路面的动荷系数简化计算公式。

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When IRI was replaced with standard deviation(σ) of profilometer, another equation of DAF can be expressed with σ and vehicle velocity. With the riding quality evaluation ranking criterion, the dynamic amplification factor of each rank was also achieved for bituminous pavement and cement concrete pavement.

引入IRI与连续平整度仪测定的标准差σ的关系后，得到动荷系数与σ及车速的关系式，最后结合沥青路面和水泥混凝土路面行驶质量评价标准，提出各路面等级的动荷系数。

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With the increase of equivalent spring mass m, the dynamic amplification factor η increases in the vibration-enlarging zone of the vibration system and decreases in the vibration-isolating zone.

随着m的增加，振动系统在振动放大区的位移传递率η增大，在隔振区减小；

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Study of Dynamic Amplification Coefficients for Deck Unit Erection Crane Structure Used in Bridge Construction

大桥施工中架梁吊机结构动力放大系数探讨

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According to my own translation practice, this paper expounds the explanatory power of the structural objects of adaptability, contextual correlates of adaptability, and dynamic adaptation toward the amplification method used in translation.

文章结合译者自身翻译实践，论述了结构客体顺应、语境关系顺应以及动态顺应对增译法的解释力。

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Requirements of weak extremely low distortion audio signal to large dynamic amplification.

要求能极低失真地对微弱音频信号进行大动态放大。

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Bridge dynamic coefficient is the dynamic amplification effect index of the bridge, which is the comprehensive reflection of dynamic characteristics and dynamic interaction status of the train-track-bridge system.

桥梁动力系数是桥梁动力放大效应的指标，其数值大小是列车-轨道-桥梁三者的动力特性和动力相互作用状态的综合反映。

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The results show that, the natural frequency, dynamic amplification factor and acceleration root of mean square of seat suspension will decrease with the increase of proportional valve input voltage.

研究结果表明，座椅悬架的固有频率、位移传递率及加速度均方根值均随比例阀输入电压的增大而减小；

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There is no reasonable consideration of dynamic amplification effects of vehicle loading in the existing design specifications for bituminous pavement and cement concrete pavement in China.

目前我国路面设计规范对车辆荷载的动态影响缺乏合理的考虑。

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The numerical analysis was made further and the corresponding dynamic response and dynamic amplification factors of the bridge with different damping were obtained as well.

分析结果表明：桥面平整的桥梁可采用数值方法计算桥梁的动态响应及其动力放大系数；

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It is indicated that the dynamic amplification of abutment rock body and dam-water-foundation interaction should be considered in the aseismatic stability analysis for high arch dam abutment.

指出高拱坝坝肩稳定分析应考虑坝肩岩体的动力放大和坝－地基－库水的动力相互作用，算例表明所提方法的实用价值。

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The simplified calculation of the dynamic amplification factor ( DAF) was obtained by solving the motion equations of a quarter vehicle model based on vehicle-pavement interaction, which could be also expressed with IRI and vehicle velocity based on the relationship between PSD and IRI.

基于车路相互作用，运用1/4车辆模型，通过求解其运动方程得到动荷系数的简化计算式，并利用IRI与路面功率谱密度的关系，导出了动荷系数与IRI及车速的关系式；

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Through comparing and analyzing the finite element simulating results and sectional test results of the Car Dumper, block test results and continuous test results, a correction program of dynamic amplification factor and secondary amplification factor is put forward to the finite element simulation loads.

通过将翻车机的有限元模拟结果和分段测试结果进行对比分析，又将分段测试结果和连续测试结果进行对比分析，对有限元模拟载荷提出了动力放大系数和二次放大系数的修正方案。

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Relationship between Vehicle Dynamic Amplification Factor and Pavement Roughness

车辆动荷系数与路面平整度的关系

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The Analytic Calculation for Dynamic Properties of Amplification Circuit Connected with Three Terminal Network

放大电路任接三端网络动态性能的解析解法

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The analysis of dynamic load amplification factor provides a reasonable basis for discussing the effect of axial force on roll bearings.

动载荷放大系数的研究为讨论轴向力对轧辊轴承的影响同时提供了合理的依据。

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The present results show that the energy dissipator can effectively reduce the dynamic response of the structure. The average decrease of the dynamic amplification coefficient for the top of the silo equipped with energy dissipator is above 20% when resonance occurs.

结果表明：耗能减震装置具有良好的减震效果，筒仓结构在加装耗能减震装置后，在共振时的仓顶动力放大系数有明显的降低，平均降低幅度达20%以上；

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Hence, it is a feasible method for the determination of dynamic amplification factor in the design of cable-stayed bridges.

由此，证实了计算程序及方法的正确性，并为今后斜拉桥设计中，冲击系数的确定提供了一种可靠方法。

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Determination of Bridge Lifetime Dynamic Amplification Factor Using Finite Element Analysis of Critical Loading Scenarios

临界荷载作用下通过有限元分析的桥寿命动力放大系数

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The typical natural frequencies and mode shape as well as the dynamic amplification of some buttresses under excitation of different levels are also given.

文中还给出典型单墩的自振频率和振型，不同激振状态下各墩位的动力放大情况。

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The dynamic amplification factor caused by the settlement was much bigger in a short span beam than that in a long span one.

沉降差在桥梁中产生的动力放大系数随着跨径增大而减小。

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