After averaging the same flight segments by multiplying mission mix rates, then the weighted mean profiles can be obtained, which represent the composite maneuver flight loading spectrum.
将各机动飞行任务的同类任务段和同类载荷循环乘以任务混频后进行加权平均即得到机动飞行类综合载荷谱。
2
Spectrum analysis was performed to determine the micro-mechanism of damage evolution of C fiber 3-D braiding composite material.
通过声发射波形信号的频谱分析，研究了碳纤维三维编织复合材料拉伸损伤的细观机理。
3
There were some difference in spectrum of IR, UV-Vis and DRS between the composite materials and polycarbonate .