Modal Analysis of Temporarily Installed Suspended Access Equipment Based on ANSYS

The paper chooses ZLP800 temporarily installed suspended access equipment (TISAE) as a object of study, it is based on theory of structural model analysis. The finite element model has been established by the finite element method (FEM). The model is analyzed by the modal analysis module of ANSYS, the first four natural frequencies and corresponding modal shapes are extracted in this paper, the cause of every modal shapes are analyzed in the paper. In order to get a more rational constraint mode, the natural frequency under different constraint condition is calculated. Then the external excitation factors, such as the vibration frequency of the electrical machine in a hoister, swing of suspended platform and the friction disk in a hoister are calculated respectively, finding the external excitation factors which would cause a sympathetic vibration, and giving the suggestions for averting the sympathetic vibration, providing some academic reference to improve and perfect the structure design of the TISAE products.