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所属单位：机电学院

发表刊物：SHOCK AND VIBRATION

关键字：PIEZOELECTRIC ACTUATORS

摘要：Because the flexible multispan shaft in large machines often rotates at supercritical speed, it is desirable to find ways to suppress the resulting bending vibration. In this paper, a novel type of support structure is proposed and investigated, which can suppress the bending vibration using dry friction. This approach is called Smart Spring support (SMSS). A dynamic model for the multispan shaft with SMSS is developed. The relationship between the vibration suppression effect and the control parameters of the SMSS is obtained through a numerical example involving a helicopter tail drive shaft. A structure of the SMSS is designed and examined with a rotor test. The results demonstrate that the SMSS has a significant effect on bending vibration suppression of flexible multispan shafts. The vibration-reduction ratio of the peak amplitude reaches 57.2% in the numerical example and 45.2% in the rotor test.

ISSN号：1070-9622

是否译文：否

发表时间：2017-01-01

合写作者：Peng, Bo,李苗苗,Tang, Ziyang

通讯作者：朱如鹏