... by the Technical Committee on Vibration and Sound of ASME for publication in the J ournal of V ibration and A coustics . 23 06 2022 23 09 2022 23 09 2022 19 10 2022 rotor dynamics vibration natural frequencies mode shapes machine dynamics modal analysis rotor dynamics system...

... method is used to obtain the natural frequencies, mode shapes, and frequency response function (FRF). However, it should be noted that the closed-form solution for SSSS boundary is possible for the PDE obtained for the zigzag pattern. In this section, we discuss the dynamic effects of the added...

... fluid and of the tunnel test section dimensions. It has been found that the natural frequencies of the acoustic domain are inversely proportional to the test section dimensions. Moreover, these acoustic frequencies decrease linearly with the reduction of the speed of sound in the fluid medium. However...

... and vibrated in vacuum and in air at atmospheric pressure. The natural frequencies of the membrane computed by analytical and finite element models are correlated well. The natural frequencies increase with mode and prestretch level of the membrane but decrease in air from those in vacuum due to the effect...