Secondary development of ANSYS and its application in calculating the natural vibration period of variable cross-section towers

Method of discount quality is always used in calculating the natural vibration period of tower in the design of tower. When tower's cross-section is variable, the calculating formula is complex, and big workload. Thus, this method is cramped in actual engineering. In view of the powerful function of ANSYS, the secondary development of ANSYS is worked with the method of discount quality in this paper. It's efficient in calculation, accurate in results, and simple in use. It is essential to increase the work efficiency in the design of tower.