固体火箭技术Issue(4)：497-502,6.DOI:10.7673/j.issn.1006-2793.2015.04.009
小型柔性接头力矩特性数值与试验研究
Numerical and experimental investigation on properties of miniature flexible joint torque
杨敬贤 1王超 2任军学 2刘宇 2郝文强 2曹熙伟3
作者信息
- 1. 上海新力动力设备研究所，上海 200125
- 2. 北京航空航天大学 宇航学院，北京 100191
- 3. 中国运载火箭技术研究院研究发展中心，北京 100076
- 折叠
摘要
Abstract
In order to study the properties of flexible joint torque in a certain motor pressure,a miniature flexible joint with sili⁃cone rubber elastomer was designed.The dynamic characteristics of flexible joint under 9 MPa vessel pressure were tested and the curves of torque versus vector angle for the flexible joint at different amplitudes and frequencies were obtained.The friction torque was obtained through the 0° vector angle torque and the spring torque was calculated by the near⁃linear part of the torque versus vec⁃tor angle curve.In addition,the influence of excitation frequency and amplitude on the three kinds of torque were studied.Results show that coulomb friction torque increases as the excitation amplitude increases.The viscous friction torque increases with the in⁃crease of swing frequency.The spring torque and the total ratio torque increase as the swing frequency increases while decrease with the amplitude increases in a certain range and then increases as the amplitude in⁃creases.关键词
柔性接头/推力矢量控制/摩擦力矩/弹性比力矩/总比力矩Key words
flexible joint/thrust vector control/friction torque/spring torque/total ratio torque分类
航空航天引用本文复制引用
杨敬贤,王超,任军学,刘宇,郝文强,曹熙伟..小型柔性接头力矩特性数值与试验研究[J].固体火箭技术,2015,(4):497-502,6.
