基本振型 meaning in Chinese

basic vibration mode

Analysis of fundamental mode shape expressions of tall buildings for evaluating wind loads
高层建筑风荷载计算中的基本振型表达式分析
Comparing with small tank , the sloshing in large tank includes not only fundamental mode but also higher modes and its fundamental period is much larger than that of small tank
从与小体积罐的比较可以看出，大型储液罐的液面晃动不只是以基本振型为主，前几阶振型对液面晃动的贡献也比较显著，并且液面晃动的基本周期比小体积罐的大很多。
This thesis will present a new simple method to calculate the seismic response of the framed structures . this method calculates the effect of the first and second modal vibration . the first modal shear force of every floor distributes according to the shape which is close to the first modal shape
本论文提出了一种新的计算框架结构地震作用效应的简化方法，考虑前两个振型的作用，对于第一振型的各层剪力，按照近似于基本振型的形状分布，第二振型各层剪力引用廖河山提出的方法计算，然后用将两个振型的剪力“平方和开平方”的方法，计算得到各层剪力(总效应) 。