Title :
Characteristics of variable parameters in rotor system with rub-impact fault
Author :
Yang, Yong ; Zhang, Shuai ; Han, Qingkai ; Qu, Yanhuai
Author_Institution :
Sch. of Inf. & Electr. Eng., Shenyang Agric. Univ., Shenyang, China
Abstract :
In this paper a finite element (FE) model of dual-span rotor system with rub-impact at fixed limiter is established. The system motion characteristics in different rotating speeds and rub-impact rod stiffness are investigated numerically by using Hilbert-Huang transform, a relative novel time-frequency analysis method. The results show that the effects of variables on system motion patterns, response properties and rub-impact severity differ in degrees. Some conclusions are achieved which may be useful to deeply understand dynamic properties of dual-span rotor system and detect rub-impact fault accurately and effectively.
Keywords :
Hilbert transforms; abrasion; elasticity; fault location; finite element analysis; impact (mechanical); limiters; rods (structures); rotors; time-frequency analysis; Hilbert-Huang transform; dual-span rotor system; finite element model; fixed limiter; response properties; rotating speeds; rub-impact fault; rub-impact rod stiffness; system motion characteristics; time-frequency analysis method; variable parameters; Analytical models; Couplings; Orbits; Rotors; Shafts; Time frequency analysis; Vibrations; Dual-span rotor system; Dynamic properties; Finite Element (FE) model; Hilbert-Huang transform; Rub-impact fault;
Conference_Titel :
Intelligent Control and Automation (WCICA), 2010 8th World Congress on
Conference_Location :
Jinan
Print_ISBN :
978-1-4244-6712-9
DOI :
10.1109/WCICA.2010.5554477
