纵倾 longitudinal trim
- 利用升力面理论和声学方法得到的离散谱噪声的预报公式,对螺旋桨直径、侧斜、纵倾变化对离散谱噪声的影响作了数值计算,并得到了工程上有实用意义的结果。
Using a combination method of the lifting surface theory and acoustic technique, the effects of different diameters, skews and rakes on the discrete noise of the propeller are studied by the numerical method and some useful results for engineering are presented in this paper.
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