This paper first design a multi-degree-of-freedom high-tech platform which used air springs as passive vibration isolation elements and giant magnetostrictive actuators as active vibration isolation elements. For this high-tech platform, a compound controller with feed forward and feedback compensators is designed. For making up the property of time lag of feedback control, the control system take feed forward control as the primary controller, while feedback control as the compensator. Among the vibrational disturbance of the high-tech platform received, the disturbance of ground motion and instruments and equipments on the platform can be measured, which we regard as the input and adopt fuzzy control as feed forward control; at the same time measure the dynamical response of the platform, adopt neural network control as feedback control. We take the sum of the output of feed forward controller and feedback controller as the total output U. Fuzzy feed forward control can not only make up the disfigurement of badly real-time property of neural network control, but also avoid the question of accessional disturbance that commonly feed forward control may bring. The results show that the developed compound controller has good isolation performance and better real-time property if the controller is properly designed.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Study on Feed Forward and Feedback Hybrid Control for High-Tech Platform


    Beteiligte:
    Liu, Hongjun (Autor:in) / Huang, Qin (Autor:in) / Wang, Yong (Autor:in) / Teng, Jun (Autor:in)

    Kongress:

    11th Biennial ASCE Aerospace Division International Conference on Engineering, Science, Construction, and Operations in Challenging Environments ; 2008 ; Long Beach, California, United States


    Erschienen in:

    Erscheinungsdatum :

    2008-09-04




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Robust Feed-Forward/Feedback Design for Tape Transport

    Tenne, Dirk / Singh, Tarunraj | AIAA | 2004


    Feed-Forward Control Designs

    Haniš, T. / Hromčík, M. / Schirrer, A. et al. | Springer Verlag | 2014


    Compliant Control of a Transfemoral Prosthesis by combining Feed-Forward and Feedback

    Heins, Sophie / Flynn, Louis / Laloyaux, Henri et al. | BASE | 2020

    Freier Zugriff