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- speed time history 速度时间史
- wind speed time history 风速时程
- Each time history repeats itself, the price goes up. 答案：历史每重演一次，代价就增加（一分）。
- China is a eastern courtry with a long time history. 中国是一个有着悠久历史的东方国家。
- The time history of pulse wind velocity and wind pressure on the structure has been simulation based on Davenport wind speed power spectrum and Shinozuka theory. 方法采用Daven port风速谱并根据Shinozuka理论;应用简谐波叠加法分别模拟了脉动风速、脉动风压和脉动风荷载时程曲线.
- In this paper, CAWS (Constant Amplitude Wave Superposition) is employed to simulate wind speed time series. 笔者利用谐波叠加法模拟了风速时程样本。
- Statistical analysis of the results of numerical wind speed time series show that CAWS is efficient in simulating the time series of nodal wind speed wihich has ... 对模拟结果统计分析表明:谐波合成法可有效地模拟具有空间相关性、时间相关性的节点脉动风速时程,模拟精度、速度和计算稳定性均满足实际工程应用要求。
- In the example of Nimu Bridge, a FEM model of 3D beams is established by beam grid method, and mode analysis and time history analysis have been done. 以尼木大桥为例,采用梁格法建立了空间梁单元有限元模型,进行了模态分析和动力时程分析。
- A time history analysis method for calculating the dynamic stability safety factor of high rock slope under excavation blasting is proposed. 提出一种计算岩质高边坡爆破开挖情况下动力稳定性安全系数的时程分析方法。
- This chapter delves into thought-form and belief systems utilized to construct the current DNA that humans exist within in present time history. 该章节深入探究了用于构建人类在历史此刻所存在其中DNA的思想形态与信仰系统。
- For concrete material,a normal expansion theory was proposed by which some deceleration about time history of the projectile can be analytically given. 通过分析,针对混凝土材料,提出了可给出弹体减速度时间历程解析解的法向膨胀理论。
- Lastly, ANSYS was employed to complete the time history analysis.The results of the time history analysis had cormfirmed the pushover analysis. 最后，利用有限元软件ANSYS对相同的半刚性连接钢框架进行动力时程分析，将分析结果与推覆分析结果进行比较。
- In this paper, based on the natural wind properties and the correlativity of nodal wind speed time series, AR model is employed to simulate wind speed time series, and the AIC rule is used to fix the rank of the AR model. 本文基于自然风特性,通过考虑结构节点间的风速时程相关性,采用AR模型模拟节点随机脉动风速时程,利用AIC准则确定模型阶数。
- To evaluate the nicety and reliability of POA method, the author compares the POA with inelastic time history analysis through case study. 作者通过算例分析，对推倒分析法与非线性时程分析法进行了比较，以评估推倒分析法的准确度及可靠性。
- Based on the natural wind properties and the correlativity of nodal winds, CAWS (Constant Amplitude Wave Superposition) is employed to simulate wind speed time series of the Caiyuanba Changjiang Bridge in Chongqing. 基于自然风特性,通过考虑结构节点间的风速时程相关性,采用谐波合成法模拟了重庆菜园坝长江大桥脉动风速时程。
- This paper aims at a tentative discussion of the aesthetic experience of man in“speed times”in the perspective of instantaneity. 本文尝试从“瞬间”角度来讨论“速度时代”人的审美体验问题。
- By adapting Davenport spectrum for horizontally fluctuating wind, wind velocity time history at the opening was simulated by using trigonometric series. 采用Davenport水平脉动风速谱;利用三角级数对开孔处的来流风速时程进行模拟.
- Based on non-proportional damping theory,complex model time history analysis of viscoelastic damper structure and evaluation method for seismic reducing effect were established. 基于非比例阻尼理论,建立了粘弹性阻尼器结构复模态时程分析及减震效果的评价方法。
- Seismic responses of the hetero-column frame with bottom rectangle columns are analyzed by time history method and are compared with the normal hetero-column frame. 对底部矩形柱上部异形柱框架结构以及纯异形柱框架结构进行了时程地震反应分析。
- Based on modal analysis to piezoelectric smart laminated plates, a finite inverse algorithm of the time history about impact loads by piezoelectric modal respondence is presented. 摘要基于对智能层合板结构的模态分析，提出由结构的压电模态响应反演瞬态荷载时间历程的有限元方法。
