There are three approaches in numerical simulation of plate and shell structures: plate and shell theory approach, degenerated continuum approach, direct three-dimensional(3D) continuum approach.
对于板壳问题，共有三种数值模拟方案：线性或非线性的板壳理论、退化连续体方案和直接三维连续体方案。
The theory of controlling the noise radiated by plate and shell according to frequency districts is stated. A damping design method in terms of the value of noise reduction is advanced.
本文阐述了板壳结构噪声的分区控制理论，提出了以降噪量作为设计指标的阻尼设计方法；
The theory of controlling the noise radiated by plate and shell according to frequency districts is stated. A damping design method in terms of the value of noise reduction is advanced.
本文阐述了板壳结构噪声的分区控制理论，提出了以降噪量作为设计指标的阻尼设计方法；
应用推荐