摘要
弹性问题间接边界元法对内域问题因精度低而难以实用。本文建议了一个修正方法,其要点是消除刚体移动及转动的影响,相应增加虚荷载静力平衡方程式。从力学意义上阐明建议的方法可求得正确解,并用若干算例对此加以证实。
Indirect boundary element method is difficuh to be applied in practical problem with internal region in virtue of its low accuracy.Considering that the effect of rigid body movements and rotations is necessary to be removed in indirect BE M analysis,the paper suggests a correction,the main point of which is treating the rigid body movements and rotations as the unknown quantities and increasing the additional equations of static equilibrium of fictitious tractions. The conclusion that the suggested method can get correct solution is described theoretically and proved practically by numerical examples.
出处
《工程力学》
EI
1987年第2期1-6,共6页
Engineering Mechanics
