反推公式

词组短语

inversion formula

与反推公式相关的网络例句 [注：此内容来源于网络，仅供参考]

In response to the relationship between cavitations and wake gradient, this paper puts forward 3 kinds of calculating model of propeller exciting force , then puts the actual exciting force into pattern formula, and then obtains a new formula to predict propeller-induced hull surface pressure fluctuations by analyzing and calculating some actual ships.

在深入研究国内外螺旋桨激振力计算方法以及综合分析影响螺旋桨激振力的各种要素的基础上，根据空泡数和伴流梯度的关系，本文提出三种螺旋桨脉动压力的计算模型，将反推得到的实际激振力分别代入模型公式，应用数学统计方法对几条实船进行计算分析，得到用于预报螺旋桨表面力的新公式。

The essential of studying the forward and inverse problems of converted wave with the use of convolution model is to deduce recursion formula of the reflection coefficient.

利用褶积模型研究转换波正、反演问题的关键是建立转换反射系数递推公式。

The error of ultimate load prediction after retrofitting:the error of structure program and preliminary estimation are between respectively 35~80% and 25~40%, the reason of error results from the slight deformation between the fixed beam relation with brick arch and reaction force base.

砖拱补强后，其水平极限荷载预测之误差：值分析程式预测结果误差约在35~80%之间，推估公式预测结果误差约在25~40%之间，试验进时砖拱与底固定处及底与反基座产生微小变形应为误差源。

Finally, a practical seismic analysis method is presented. Through a reasonable assumed distribution of lateral forces, the capacity curve can be derived from the story shear-displacement curves. And by using equations suggested by ATC-40, the corresponding capacity spectrum, period, damping ratio and PGA can also be obtained. This method can provide not only collapse PGA of a low-rise RC building structure, but also damage conditions of members at a specific PGA. Combining with the deterioration rule for RC column after multiple earthquakes, it can also be applied to seismic analysis for after-earthquake or aged buildings.

最后则提出一套适用於中低层RC建筑结构之实用耐震诊断法，依照合理假设之地震力竖向分配型态及ATC-40建议公式，可再将层剪力-层间变位曲线换算为基底剪力-屋顶位移能力曲线，并计算对应之等效周期、阻尼比与PGA，除可评估结构整体之崩塌地表加速度外，也可由特定PGA反推对应的构件破坏程度，亦可配合震后折损修正，应用於结构之震后与经年耐震评估。

An algorithm for decomposition of multi wave and multi component data into upgoing and downgoing P wave and S wave was derived in frequency wave number domain in this paper. The reflection coefficient versus incident angle was calculated, which can provide foundational data for the AVO inversion of elastic parameters and prediction of fluid factor.

在频率波数域中采用解析法，解出多层条件下海底实测的多分量地震数据分解成上行和下行P波和S波的算法，导出海底各层地震反射系数随入射角变化的递推计算公式，为海底多波多分量AVO弹性参数的反演及流体因子预测提供基础数据。