par De Marneffe, Bruno 
;Preumont, André
Editeur scientifique Schwartz, Mel
Référence Smart Materials, CRC Press, Boca Raton, page (1-10)
Publication Publié, 2008
;Preumont, André Editeur scientifique Schwartz, Mel
Référence Smart Materials, CRC Press, Boca Raton, page (1-10)
Publication Publié, 2008
Partie d'ouvrage collectif
| Résumé : | The concept of active trusses is quite natural: it consists of replacing one or several passive bars by active struts. Piezoelectric transducers are ideally suited for this purpose, because of their high stiffness and virtually unlimited resolution; other types of transducer, based, e.g., on electrostrictive materials can also be used but they are not investigated here. The active truss concept was first demonstrated in the late 1980s [1–3]; very effective active control strategies were proposed at that time. One of them, known as integral force feedback (IFF), is based on a collocated force sensor and has guaranteed stability [4] as long as perfect amplifier and actuator dynamics are assumed. |
