数值实验表明这种代数多重网格法对求解二次拉格朗日有限元方程是健壮和有效的。

Numerical experiments show our AMG method is robust and efficient for solving the quadratic Lagrangian finite element system.

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超级元法是在普通有限元划分的基础上进行二次大单元划分的一种半连续化方法。

Super finite element method is a semi-continuous method to unit quadratic division on the basis of ordinary finite element division.

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通过试验验证了用有限元法进行螺旋槽管材滚压成型过程模拟的可靠性，并得到了滚压力与槽深之间的对应关系，为螺旋槽管的二次加工提供了必要的实际指导依据。

The reliability of numerical simulation was proved by experiment, and the relation between roll-pressing force and corrugation depth was obtained as guidance for secondary machining of grooved tube.

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