【摘要】 根据变分原理导出了输送管道(流—固耦合问题)自由振动的变分方程,采用直接解法求出了输送管道自由振动的固有频率和极限流速。更多还原

【Abstract】 Free vibration variational equation of a camped pipe conveying fluid (liquid-solid coupled problem) is derived, based on variational principle. The natural frequency formula of a camped pipe conveying fluid are obtained by used of direct method. The influence of flowing velocity on natural frequency of a camped pipe conveying fluid is discussed. The limit velocity of liquid in the camped pipe conveying fluid is obtained.更多还原