title: An improved force feedback control algorithm for active tendons.
abstract: An active tendon, consisting of a displacement actuator and a co-located force sensor, has been adopted by many studies to suppress the vibration of large space flexible structures. The damping, provided by the force feedback control algorithm in these studies, is small and can increase, especially for tendons with low axial stiffness. This study introduces an improved force feedback algorithm, which is based on the idea of velocity feedback. The algorithm provides a large damping ratio for space flexible structures and does not require a structure model. The effectiveness of the algorithm is demonstrated on a structure similar to JPL-MPI. The results show that large damping can be achieved for the vibration control of large space structures.
authors.affiliation: School of Mechanical Engineering & Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China. gtn@bjut.com
authors.forename: Tieneng
authors.initials: T
authors.lastname: Guo
authors.forename: Zhifeng
authors.initials: Z
authors.lastname: Liu
authors.forename: Ligang
authors.initials: L
authors.lastname: Cai
keywords: active tendon; differential force feedback; vibration control