Title :
Research on Chaos Dynamic Characteristics of Hybrid Squeeze Film Damper with Electro-hydraulic Active Control
Author :
Li, Yunhua ; Chen Chieh-Li
Author_Institution :
Sch. of Autom. Sci. & Electr. Eng., Beijing Univ. of Aeronaut. & Astronaut., Beijing
Abstract :
In this paper, addressed to the problems existed in the squeeze film damper (SFD) based on the dynamic pressure bearing in the rotational machinery, a new type of the hybrid squeeze film damper (HSFD) with piezoelectric crystal electrohydraulic active control is proposed. It is composed of dynamic pressure bearing and static pressure bearing. The effectiveness of HSFD is analyzed theoretically, and the simulation of the chaos dynamics characteristics is carried out. The results obviously show that the HSFD not only overcomes the bi-stable problem, but also restrains the shock in the rotor supporting system.
Keywords :
chaos; machine control; nonlinear control systems; rotors; shock absorbers; vibration control; chaos dynamic characteristics; dynamic pressure bearing; hybrid squeeze film damper; piezoelectric crystal electrohydraulic active control; rotational machinery; rotor supporting system; static pressure bearing; Aerodynamics; Bifurcation; Chaos; Control systems; Damping; Nonlinear control systems; Nonlinear dynamical systems; Piezoelectric films; Pressure control; Shock absorbers; active control; dampers; hydraulic control; nonliner dynamics; rotor dynamics;
Conference_Titel :
Robotics, Automation and Mechatronics, 2008 IEEE Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-1675-2
Electronic_ISBN :
978-1-4244-1676-9
DOI :
10.1109/RAMECH.2008.4681487
