输入分析 meaning in English
input analysis
Examples
- Whether the earth dam lapses in seismic response analysis is mainly judged by two criterion , the damage value and the permanent displacement , so the difference of response between multi - point input and one - point input , that is the multi - point effect , is also checked by this two criterion . therewith the method to calculate damage value and permanent displacement is studied too . the multi - point input is two directional , one direction is along river , and another is vertical
由于土石坝在地震作用下的失效形式包括累积损伤破坏和过大的永久位移，本文从累积损伤和永久位移两方面研究土石坝多点输入相对单点输入地震反应有何不同，即多点效应如何，因此与多点输入分析相关的损伤值和永久位移的计算方法也在研究之列。 - A more reasonable method to calculate soil ' s damage value is advanced , which bases on extrema of irregular dynamic shear stress . previously it bases on peaks of shear stress to calculate damage value , but by this method the destructive action of multi - point inputted earthquake is overestimated , especially in the second half section of responding shear stress " time history the shear stress caused mainly by differential force undulate slightly on one side of its zero line
以往计算土体在不规则的动剪应力作用下的损伤值根据的是动剪应力的峰值，在时域内多点输入分析中，由于差动力的的存在，使得时程后段动剪应力不穿零而在一侧做幅度不大的波动，基于峰值的损伤值计算特别过高地估计了这段剪应力的破坏作用，过高的程度还随延时增加而增加。 - The precious method to simulate earthquake accelerations is not perfect because the points on the interface still move according to the simulated acceleration when the points " motion ends , which is obviously a paradox . if the points " velocity is not zeroized , soil ' s damage value based on shear stress ' s peaks or extrema is overestimated in multi - point input analysis . the new method ' s rationality is analyzed
以往人工合成的地震波在地震结束时即地震加速度恒为零时速度不为零，这与合成地震动是“模拟输入点从静止到运动再到静止的运动过程”这一要求不一致，同时导致时域内多点输入分析时差动力过大以至算出的损伤值过大，于是本文提出了简易的地震动速度归零化方法并分析了其合理性。