The modal analyses of the mechanical structures of the Beluga XL were performed in June 2018 as part of an extensive GVT (ground vibration test) by the German Aerospace Center (DLR) in Göttingen.
© Photo by LANCELOT Frederic - MasterFilms, AIRBUS 2018
什么是模态分析?
模态分析是一种通过实验,研究结构振动特性的分析方法。通过模态分析,可以确定车身、桥梁、飞机结构体的特性。开展模态分析需要使用至少一个激振器(如脉冲力锤或振动筛)、一个加速度计以及 一个数据采集器。