通过对轴对称抗式消声器进行有限元分析，建立其数学模型，对传递损失编制程序计算。
In this paper, the reactance silencer with axis symmetry is analyzed in finite element method so as to establish a mathematic model for the programming of calculation of the trans-mission loss.
本文在轴对称不稳定热传导有限元分析模型的基础上，提出了一个内燃机燃烧室的活塞与缸套偶合系统的不稳定传热数值分析模型。
Based on an axisymmetric unsteady conduction model by FEM, a numerical analysis model of unsteady heat transfer for the piston-liner coupling system of combustion chamber in an I.
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