aerial chart 中文意思是什麼
aerial chart
解釋
航空圖。-
Navigation chart of aerial photography
航攝領航圖 -
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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