The inherency frequency and vibratory-type are calculated based on the modal analysis of the whole airframe.
对机身整体框架进行模态
,
解固有频率和振型。
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Although four-engine operation would be more efficient, upgrading the airframe to run with only four engines would necessitate further alterations to the aircraft's systems and control surfaces especially the rudder, extending the project's duration, cost, and complexity.
虽然四发动
运行会更高效,但将
体升级为仅使用四台发动
需要进
步修改飞
的系统和控制面,特别是方向舵,
将延长项目的周期、成本和复杂性。