声学模 meaning in English

acoustic mode

If rigid walls are assumed in the finite element model for the boundary panels , an eight node , isoparametric acoustic finite element model is developed for calculating the acoustic modes of cavities . initially a rectangular enclosure is analyzed in order to study the convergence of the results
利用8节点块体单元，在刚性壁条件下，对声场的基本方程进行数值求解，在jifex系统中发展了这种新的有限元模型，计算了封闭空腔的声学模态(固有频率和振型) 。
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
论文的主要内容包括：对振动和噪声的基础理论进行了概述，并建立了结构振动噪声声场分析计算的流程图。以封闭鼓形薄壳为分析对象，运用有限元法分析了其的动态特性及振动响应；同时在分析了封闭鼓形薄壳空气内腔的声学模态的基础上，对其进行了声固耦合分析；并作了该结构模型的外场声固耦合谐响应分析。