Structural sound intensity method is introduced into the field of satellite vibration transmission analy-sis in this paper,in order to study the vibration energy transmission law of the satellite cabin structure under the disturbance of the flywheel,and to identify the dominant transmission path and waveform.According to the equivalent plate theory,the cabin structure honeycomb panel can be equivalent and its finite element model is es-tablished.The flywheel disturbance force and torque are obtained through the force measurement platform for ex-citation loading,combined with the command stream for data extraction.Then,the structure sound intensity method is used to obtain the vibration energy and transfer it to the process.So,the streamline cloud diagram can be presented,and the correctness of the calculation of the vibration energy flow of the honeycomb coupling struc-ture is verified by experiments.Through the analysis of the energy flow on the model,the transmission path from the vibration source to the camera installation area is divided.Moreover,the net transmission ratios of the different waveforms of each path and the total vibration energy are compared,and the waveform participating in the energy transmission on the different paths is analyzed,to determine the main transmission path and wave-form.The results show that the total energy transmitted from the left partition to the camera area is the largest.Furthermore,the net transmission ratios of longitudinal waves in the four paths are all greater than 0.68,which are the main waveforms involved in energy transmission In addition the bending wave energy of the vibration source and the camera installation area is the largest,longitudinal waves,shear waves play a role in energy transfer and transformation.
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