CAJ | 학술논문

采用模态方法研究了一维杆状周期结构声子晶体的带隙特性，并通过理论计算得到了一维周期结构声子晶体的固有频率方程，解该方程确定出一维周期结构声子晶体的带隙范围。计算结果与数值模拟验证的结果十分吻合，说明该方法可行，用模态方法来解释声子晶体的带隙特性可以加快声子晶体向工程应用中转化的步伐。
채용모태방법연구료일유간상주기결구성자정체적대극특성，병통과이론계산득도료일유주기결구성자정체적고유빈솔방정，해해방정학정출일유주기결구성자정체적대극범위。계산결과여수치모의험증적결과십분문합，설명해방법가행，용모태방법래해석성자정체적대극특성가이가쾌성자정체향공정응용중전화적보벌。
The band gap characteristics of 1D rod phononic crystal with periodic structure is studied by the modal method.The natural frequency equation of 1D phononic crystal with periodic structure is obtained by theoretical calculation,which solution can be set for the band gap range of the 1D phononic crystal.The calculated band gap range is quite coincident with the results of the numerical simulation,which shows that the method is feasible,and accelerate the pace of phononic crystal to engineering applica-tions.