aerial noise 中文意思是什麼
aerial noise
解釋
天線噪聲-
A rude noise broke on these fine ripplings and whisperings, at once so far away and so clear : a positive tramp, tramp, a metallic clatter, which effaced the soft wave - wanderings ; as, in a picture, the solid mass of a crag, or the rough boles of a great oak, drawn in dark and strong on the foreground, efface the aerial distance of azure hill, sunny horizon, and blended clouds where tint melts into tint
一個粗重的聲音，沖破了細微的潺潺水聲和沙沙的風聲，既遙遠而又清晰：一種確確實實的腳步聲。刺耳的喀嗒喀嗒聲，蓋過了柔和的波濤起伏似的聲響，猶如在一幅畫中。濃墨渲染的前景一大塊峭巖或者一棵大橡樹的粗壯樹干，消融了遠景中青翠的山巒明亮的天際和斑駁的雲彩。 -
The main content of this paper contains : summarizing the foundational theory of vibration and noise, and establishing the analysis and computation flow chart of noise acoustic field of mechanical vibration ; taking a close drum shell as the research object, analyzing its dynamic characteristics and vibration response using finite element method, then going with the structural - acoustic coupling analysis based on the acoustic model analysis of the aerial intracavity of the close drum shell
論文的主要內容包括：對振動和噪聲的基礎理論進行了概述，並建立了結構振動噪聲聲場分析計算的流程圖。以封閉鼓形薄殼為分析對象，運用有限元法分析了其的動態特性及振動響應；同時在分析了封閉鼓形薄殼空氣內腔的聲學模態的基礎上，對其進行了聲固耦合分析；並作了該結構模型的外場聲固耦合諧響應分析。
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