摘要
针对三维边界积分方程中奇异积分的不同形式分别进行了讨论,用刚体位移原理消除强奇异因子,用线性位移函数消除弱奇异因子,在计算工作量大大减少的情况下,保证了原求解精度的要求,并通过数值算例表明了该方法的可行性.
Several singularity integrals for 3D-boundary integral equation are discussed in this paper. Rigid body movement principle is used to get rid of strong singularity factor, and linearity displacement function is introduced to eliminate feeble singularity factor. As a result, calculation precision is ensured and workload is reduced. The numerical results presented in this paper illustrate the feasibility of the proposed approach.
出处
《装甲兵工程学院学报》
2003年第3期14-16,共3页
Journal of Academy of Armored Force Engineering
关键词
奇异积分
极坐标变换
刚体位移
边界元
singularity integral
polar coordinate
rigid body displacement
boundary element
