Correlation evaluation of experimental and numerical modes of the clamp structure

In this paper the modal correlation of a clamp structure in a radar system is analyzed. Both experimental and numerical (FE) approach was applied. The aim of the research was to calibrate the dynamics model and conduct the design. Firstly, the LMS Test.lab modal analysis is systematically introduced, and the natural frequency and vibration modes of the structure are given. Furthermore, the simulated modal of the structure by FEM is calculated. Based on the results obtained in prior analysis, the comparison of modal results is discussed, and the pretreatment techniques of correlation are described. Finally, the results of modal correlation are got. The results show that the simulated model is effective. Those works will be the basis for further dynamic analysis.