文献类型：期刊文献

英文题名：Study on the dynamic performance of tilt rotor supported by spherical roller bearings

作者：Yang, Jiapeng[1];Zeng, Hua[2];Zhu, Tongqing[2];An, Qi[1]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Shanghai Elect Hydraul & Pneumat Co Ltd, Shanghai, Peoples R China

年份：2017

卷号：231

期号：1

起止页码：156

外文期刊名：PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART K-JOURNAL OF MULTI-BODY DYNAMICS

收录：;EI(收录号：20171803615568);WOS:【SCI-EXPANDED(收录号:WOS:000397494000011)】；

基金：The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This research was financially supported by the Shanghai Electric Hydraulics & Pneumatics Co., Ltd.

语种：英文

外文关键词：Tilt rotor; spherical roller bearing; dynamic response; dynamics analysis; asymmetry distribution

摘要：Tilt rotor supported by rolling bearings is often used in mechanical equipment. In the past, researches on dynamic performance of bearing-rotor were mainly carried out for horizontal rotor, but there is insufficient reported research on the tilting rotors. In this paper, the dynamic performance of a tilt rotor supported by spherical roller bearings is studied. Through the dynamics analysis of the rotor, a transfer matrix dynamics model for the tilt rotor is established. The stiffness and damping calculation model of spherical roller bearings is built. With a calculation example, the effects of tilting angles and some rotor structure parameters on the system's dynamic performance are studied numerically. The results obtained show that with the increase in the tilt angle, the critical speed of the rotor decreases, and the amplitude increases in the vertical direction of the shaft. With the same tilting angle, the smaller the distance from the disc to the middle point of the rotating shaft, the larger the amplitude of the vibration mode and the amplitude difference compared to that of the rotor without inclination. The unbalanced response amplitude curves of the rotor distribute asymmetrically because of the rotor's inclination. The bigger the inclination angle, the more obvious is the asymmetry distribution.