Then this paper introduces the principle and method of finite element dynamic analysis of spatial composite structure like gate.
介绍了闸门这类复杂空间组合结构有限元动力分析的原理和方法。
Based on principle of conservation of energy, the thermal field of concrete component can be gotten by the method of finite element.
混凝土构件温度场的计算可以根据能量守恒原理，采用有限元方法进行求解。
On the basis of the finite element solution to elastodynamic problems, we propose a new method of finite element elastic wave migration.
本文在弹性动力学问题的有限单元解的基础上，提出了一种弹性波偏移的新方法——有限单元法弹性波偏移。
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