The back analysis formulas of viscoelastic displacements are derived from BEM according to the fundamental principle of inverse process, and it is compared with FEM BA formulas.

• 本文根据逆过程法的基本原理,导出了以边界元法为基础的粘弹性位移反分析公式,并将其与以有限元法为基础的基本公式作了比较。