In order to explore the change of pseudo-density to the effect of material rigidity and set up the relation between them for density variable method, we presented FEM to deal with the problem.
为了探讨变密度法中伪密度的变化对材料刚度的影响，并建立两者之间的力学关系，本文采用有限元法研究这一问题。
Based on finite element method, variable density method was employed to optimize the configuration of adherends in overlap region, and the curve fitting was applied to attain proper configuration.
在有限元方法的基础上，利用变密度法对单搭接胶接接头搭接区域的被粘物形状进行了拓扑优化，通过曲线拟合得到了较为合理的轮廓。
The structural topology optimization method—variable density method is used to optimize the topology of an acoustic_box for interior sound pressure reduction.
基于变密度拓扑优化方法和声-结构耦合系统有限元模型，对四角固支箱体模拟的飞机座舱进行了减振降噪分析。
The finite element analysis (FEA) and the variable density methods were used. The optimization method and process were presented.
采用有限元法与变密度法，给出了优化方法和步骤。
A discrete method for stochastic variable (features) space of class-conditional-probability density and estimation method for class-conditional -probability distribution is proposed.
本文提出了类条件概率密度随机变量（特征）空间离散化及类条件概率分布估计方法。
By variable density method, an optimal topology model is established with the help of the software ANSYS to support the optimal topology design of the horsehead pumping unit.
文章应用有限元分析软件ANSYS。采用变密度法建立拓扑优化模型，对抽油机驴头进行拓扑优化设计。
A variable density based topology optimization method was applied to the light-weight design of engine block.
将变密度拓扑优化方法应用于发动机气缸体轻量化设计中。
A cementing method of separable setting and variable density is used, with two level controls of safety valve on the ground and downhole;
采用双凝固井、变密度固井方式，均采用地面和地下两级安全阀控制；
In this paper a new method for making circular variable density filters is proposed.
本文提出一种制备圆形渐变衰减片的新方法。
In this paper a new method for making circular variable density filters is proposed.
本文提出一种制备圆形渐变衰减片的新方法。
应用推荐