Vibration power flow in infinite stiffened-plate with force excitation applied on plate

查看全文 作　　者：WANG Minqing (Xi’an Jiaotong University Xi’an 710049) SHENG Meiping;SUN Jincai;SUN Zhaohui (Institute of Acoustical Engineering, Northwestern Polytechnical University Xi’an 710072) HUANG Xieqing (Xi,an Jiaotong University Xi’an 710049) 出　　处：《Chinese Journal of Acoustics》索引1998年第17卷第2期,共6页 摘　　要：The formula of the vibration response and power flow in beam-stiffened plate with force excitation applied on.the plate, have been obtained by using the Steepest Descent Integral method. The characteristics of the power flow have been studied through computer simulation.It is shown that the stiffener acts as an extra lineal excitation applied on the plate and changes the characteristics of the power flow of the infinite plate greatly The greater the stiffness and the smaller the distance between the exciting point and the stiffener is, the greater the induence is. Lastly, experiments have been carried out by using the dualaccelerometer measurement technique that based on cross spectrum, and the test data agree well with the theoretical 关 键 词：flow Vibration power flow in infinite stiffened-plate with force excitation applied on plate