参与系数 meaning in English
participation factor
Examples
- We compose a neural network in which the input signals are the frame substructure natural frequencies and mode shapes , and output signals are the submatrix scaling factor . the levenberg - marquardt algorithms is applied to modify the weight matrices of neural network
框架子结构在动载作用下的自振频率和模态作为网络的输入，子矩阵参与系数作为网络的输出，用levenberg一marquardi算法训练网络。 - Using the model parameter from the dynamical experiment , the integrated parameters can be disassembled , thus the structure ' s frequency and the influencing coefficient of their oscillation mode are solved . it ' s tested from the model experiments and fem that the model given by the article has the virtue of explicit concept and convenient method and high accuracy , and it can give reference to evaluate the load capacity of bridge . in the end , in order to assess the existing bridge ' s seismic resistance performance , force reduction factor with ductility is recommended to reflect the seismic force of the structure during the elastic and plastic periods
另一方面，由动力相似理论建立了室内模型，并进行室内动力试验，借助量测到的模态参数分解出综合参数，可以反推结构频率及振型参与系数。试验结果、有限元计算值表明，本文建立的模型概念明确、计算方法简便、精度较高，可以为动测法评定桥梁结构承载力提供参考。最后，从延性的角度给出强度折减系数来考虑结构进入弹塑性阶段的地震力，从而对桥梁的抗震性能做出评价。 - The number of modes should be selected according to the participant coefficient of mode when calculating the internal force by the response spectrum method ; ( 4 ) the roof plate of large base which connect the towers together should be thick enough but not exceeding the proper scope that the towers and the large base can vibrate together , ( 5 ) in structures with large base and muti - towers , with increasing of the capacity of the large base , the inter - story shear force will increase while the inter - story displacement will decrease as to fulfill the ductility request to avoid the large base becoming weak story , but meanwhile , the upper story will turn into weak story , thus the coefficient r s should be within 2 . 0 ~ 3 . 0
采用振型分解反应谱法计算结构内力时应根据振型参与系数选择振型避免漏选；大底盘多塔楼结构连接各塔楼的裙房屋面刚度应做得大些，以保证底部裙房与上部塔楼共同振动，但也不能过刚；大底盘多塔楼结构底盘承载力的加强将使底盘层剪力增大、层间变形减小，但易于满足延性要求，在一定程度上可避免底盘成为薄弱层。但底部加强会导致薄弱层的上移，因此采取提高底盘承载力的措施的效果是有限度的，承载力系数s宜取为2 . 0 3 . 0之间。