variance law中文什么意思

例句与用法

1. According to the fluctuating property of wind , on the stochastic vibration finite element theory , some calculation formulas of the response , including the along - wind response and the across - wind response , are obtained , the ideology of the torsion vibration in the double - tower structure and the ideology of the double - tower structure ' s dynamical wind load are also put forward at the same time . by using the stochastic vibration module of the general finite element program , the paper analyses the performance of the wind resistance more deeply and fully , discussing the influence on the double - tower structure from the diversification of the different component . the variance law of dynamic displacement and wind - induced vibration coefficient is derived through analyzing structure stochastic vibration , so is the effect of several parameters on dynamic displacement , acceleration and wind - induced vibration coefficient
   从结构风振的基本理论出发，通过对脉动风功率谱的分析，推导了结构风振响应(顺、横风向)的计算公式，同时提出了双塔结构的扭转振动和动力风荷载计算的思想，在结合通用有限元程序的随机振动模块的情况下，对双塔结构的抗风性能作了深入、全面研究，探讨了双塔结构构件截面的变化对其抗风性能的影响，同时探讨了顺风向风速谱的选取、风速、参与计算的振型数、风与结构耦合作用是否考虑等因素对分析结果的影响，比较了规范风振系数的计算与随机算法结构的异同，并讨论了原因，得出一些有意义的结论。