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Force and Position Control in Humans - The Role of Augmented Feedback

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Published on: June 19, 2016

An improved force feedback control algorithm for active tendons.

Tieneng Guo¹, Zhifeng Liu, Ligang Cai

¹School of Mechanical Engineering & Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China. gtn@bjut.com

Sensors (Basel, Switzerland)

|November 1, 2012

Summary

This study presents an improved force feedback algorithm for active tendons to control vibrations in large space structures. The new method significantly enhances damping without needing a complex structure model.

Keywords:

active tendon differential force feedback vibration control

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Area of Science:

Space Engineering
Control Systems
Structural Dynamics

Background:

Active tendons with force feedback are used to suppress vibrations in large space structures.
Existing methods provide limited damping, especially for low-stiffness tendons, and often require structure models.

Purpose of the Study:

To introduce an improved force feedback control algorithm for active tendons.
To enhance vibration suppression in large space structures using velocity feedback principles.
To develop a model-free control strategy for active tendon systems.

Main Methods:

Developed an improved force feedback algorithm based on velocity feedback principles.
Implemented and tested the algorithm on a test structure mimicking the JPL-MPI.
Focused on achieving high damping ratios for vibration control.

Main Results:

The improved algorithm provides a significantly larger damping ratio compared to previous methods.
Effective vibration control was demonstrated on the test structure.
The method proved effective without requiring a detailed structure model.

Conclusions:

The novel force feedback algorithm offers a substantial improvement in damping for large space structure vibration control.
This velocity feedback-based approach is effective and model-free, simplifying implementation.
The findings pave the way for more robust vibration suppression in space applications.