sectional model meaning in Chinese

分段模

The identification of flutter derivatives for bridge sectional model has long been a key issue in long - span bridge flutter and buffeting analysis
长期以来，桥梁断面颤振导数的识别都是大跨度桥梁颤抖振响应分析中的重点和难点问题。
A test has been carried out on three typical bridges sectional models of flutter derivatives to find the general rules with the change of flutter derivatives of the bridges sectional model . and it has been discovered that this change depend on the torsional damping , an element closely relating to the h * 2 and a * 2 4
通过对三种典型断面颤振导数的测试，考查了各颤振导数随断面形状的变化趋势，说明了最主要的变化体现在与扭转阻尼有关的h _ 2和a _ 2项。