并利用三维动态有限元模拟了点焊接头疲劳裂纹扩展过程中频率变化特性。
Then the characteristics of frequency variation during the fatigue crack propagation process are simulated by three - dimensional dynamic finite element analysis.
边界界面动态接触约束与接触判断是3维复杂体积成形有限元数值模拟的关键技术问题之一。
One of the key technique problems is boundary dynamic contact constraint and contact judgment in FEA simulation for 3d complicated massive forming.
用本文编制的动力有限元程序可以较好的模拟三弯点梁在静态和动态冲击荷载作用下的弯拉特性。
The dynamic finite element program formulated in the paper can simulate the flexural-tensile property of the third-point flexural-tensile beams under static loading and impact loading.
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