CAJ | 학술논문

讨论了耦合系统自由振动的控制方程，着重对动水压力向量及附加质量阵的计算进行阐述，并对在水介质下的结构的动态特性计算的求解方法作简要说明，最后介绍一个实用例子得出的计算成果，该例表明考虑液体影响得出的机组自振频率比不考虑液体影响所得值明显下降，而各阶振型也有明显的不同。
토론료우합계통자유진동적공제방정，착중대동수압력향량급부가질량진적계산진행천술，병대재수개질하적결구적동태특성계산적구해방법작간요설명，최후개소일개실용례자득출적계산성과，해례표명고필액체영향득출적궤조자진빈솔비불고필액체영향소득치명현하강，이각계진형야유명현적불동。
This paper discusses the free vibration governing equations of a coupled system with the emphasis on the calculation of dynamic water pressure vectors and the added mass matrix. It also makes a brief introduction about the solution of the dynamic behavior of structures under water medium. The calculation results obtained from a practical example are presented, which show that the basic frequency of the turbine obtained with the structure-liquid coupling effect taken into consideration is less than that without the coupling effect, and that all the modes of vibration are obviously different from each other.