Studies on a hybrid experimental statistical energy analysis method

Because there are so many subsystems in traditional experimental statistical energy analysis method, the workload of measuring the parameters is very big. This paper presents a hybrid experimental statistical energy analysis method, in which some of the parameters are determined by analytical method, thus it reduces the number of the unknown measured parameters. This article described the test steps of this method and also given numerical simulation examples. Results showed that the statistical energy equation established by this method can accurately forecast structural vibration of complex system. Finally, the method to choose positions of excitation points was also discussed.