CAJ | 학술논문

根据波函数法（WBM）基于间接Trefftz法且不同于有限元等传统方法、在整个分析域内位移场由精确满足动力学方程函数表示、适用范围由低频扩展至中频等特点，基于该法对结构中频振动功率流问题进行研究。算例中用WBM法分析板结构功率流，并与有限元法比较。用计算结果验证该方法在求解中频振动功率流的有效性与优势。
근거파함수법（WBM）기우간접Trefftz법차불동우유한원등전통방법、재정개분석역내위이장유정학만족동역학방정함수표시、괄용범위유저빈확전지중빈등특점，기우해법대결구중빈진동공솔류문제진행연구。산례중용WBM법분석판결구공솔류，병여유한원법비교。용계산결과험증해방법재구해중빈진동공솔류적유효성여우세。
Wave based method (WBM)is a new deterministic method for vibration problems.It's based on the indirect Trefftz method,and the vibration signals are expressed approximately in terms of global wave functions,which are the exact solutions of the governing equation of vibration.Due to its enhanced computational efficiency as compared with the finite element method (FEM),the WBM can settle mid-frequency problems.The power flow in plate structure was analysed by WBM and the results are compared with those of the FEM.The outcome turns out the validity and advantage of the WBM.