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边界元法在考虑体积力时要产生积分自由项,这将使边界积分成为非线性积分,从而引起实施时的困难。本文从弹性力学的基本原理出发,推导出了一种能使含体力的非线性积分化为线性积分的简单方法。
The boundary element method generates the integral free term when considering the volumetric force. This will make the boundary integral nonlinear integral and cause difficulties in implementation. Based on the basic principle of elastic mechanics, this paper deduces a simple method that can make the nonlinear integral of body strength into linear integral.