结果表明,在目标方向破片密度和速度都有较大幅度增益,数值模拟与试验结果比较吻合。
The results of simulation and experiment show that the density and velocity of the fragments are greatly enhanced in the target direction and the simulation is consistent with experiment.
与其他分布参数模型的处理方法相比较,该文的仿真方法不仅具有较高的运算精度,而且在较大的时间步长下也有非常好的数值稳定性。
In comparison with other distributed parameter models, the calculation result of this model has showed that it has a quality of higher precision with numerical stability even at a big time step size.
术后PMMA组术眼柱镜屈光度数值较大,与硅凝胶组及对照组比较,差异有显著意义(P<0.05);
The cylinder anisometropia in PMMA group was worse than silicon–gelatum group and controlling group, the differences were significant(P<0.05).
本文所阐述的技术对于多次拉深这一比较复杂的板料成形工艺的数值模拟研究有较大的参考价值。
The technologies presented are valuable for numerical simulation of such a complex process as multi-stage sheet metal forming.
一维和二维的数值方法对刻画砂井地基的固结都不够准确和全面,但砂井密集地基的完全三维耦合模拟难度比较大。
On the other hand, it is very difficult to simulate the coupled three-dimensional consolidation in the situation that sand drains are dense.
数值模拟主要针对单管,数学模型一般忽略横向对流和膜厚变化,结果缺乏必要的实测数据的验证,直接用于实际机组的设计会带来比较大的误差。
The result of numerical simulation for single tube, will lead to great error, neglecting transverse convection and variable film thickness, being lack of experimental test.
通过与该数值模型的比较,我们发现:常规的滑靴副模型在计算滑靴副倾侧状态时的性能存在较大误差,不适合计算滑靴副倾侧时的性能。
By comparison with the numerical model, we find that: the conventional model could not be applied to evaluate the tilting characteristics of the pair due to its big tolerance.
结果表明,在目标方向破片密度和速度都有较大幅度增益,数值模拟与试验结果比较吻合。
The results of simulation and experiment show that the density and velocity of the fragments are greatly enhanced in the target direction an...
结果表明,在目标方向破片密度和速度都有较大幅度增益,数值模拟与试验结果比较吻合。
The results of simulation and experiment show that the density and velocity of the fragments are greatly enhanced in the target direction an...
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