Influence of friction and clearance in auxiliary bearings on chaotic vibration of a coaxial rotor supported by active magnetic bearings

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

EBRAHIMI REZA; GHAYOUR MOSTAFA; MOHAMMAD KHANLO HESHMATALLAH

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: AEROSPACE KNOWLEDGE AND TECHNOLOGY JOURNAL Year:2019 | Volume:7 | Issue:2 Page(s): 7-21

Download Full-Text

Persian Verion

View:

414

Download:

Cites:

Information Journal Paper

Title

Influence of friction and clearance in auxiliary bearings on chaotic vibration of a coaxial rotor supported by active magnetic bearings

Author(s)

EBRAHIMI REZA | GHAYOUR MOSTAFA | MOHAMMAD KHANLO HESHMATALLAH | Issue Writer Certificate

Keywords

Coaxial rotorQ1

Active magnetic bearing (AMB)Q1

Auxiliary bearingQ1

Nonlinear dynamicQ1

BifurcationQ2

Abstract

In many cases of rotating systems, like jet engines, Coaxial rotor system is used for power transmission between a high/low pressure turbine and a compressor. In this paper, chaos analysis of a magnetically supported Coaxial rotor system in Auxiliary bearings is presented, which includes gyroscopic moments of disks and geometric coupling of the magnetic actuators. The nonlinear equations of motion are developed using the Lagrange’ s equations and solved by the Rung-Kutta method. Then, the effects of friction and clearance in Auxiliary bearings on the chaotic vibration of the Coaxial rotor-AMB system are investigated by the dynamic trajectories, power spectra, Poincare´ maps, Bifurcation diagrams and maximum Lyapunov exponents. The results show that dynamics of the system can be significantly affected by varying these parameters, so that the system responses reveal a rich variety of Nonlinear dynamical phenomena including chaos and jump. Also according to the results of analysis, some threshold values can be obtained with regard to the design of appropriate parameters for this system.

Cites

No record.

References

No record.

Cite

APA: Copy

EBRAHIMI, REZA, GHAYOUR, MOSTAFA, & MOHAMMAD KHANLO, HESHMATALLAH. (2019). Influence of friction and clearance in auxiliary bearings on chaotic vibration of a coaxial rotor supported by active magnetic bearings. AEROSPACE KNOWLEDGE AND TECHNOLOGY JOURNAL, 7(2 ), 7-21. SID. https://sid.ir/paper/264133/en

Vancouver: Copy

EBRAHIMI REZA, GHAYOUR MOSTAFA, MOHAMMAD KHANLO HESHMATALLAH. Influence of friction and clearance in auxiliary bearings on chaotic vibration of a coaxial rotor supported by active magnetic bearings. AEROSPACE KNOWLEDGE AND TECHNOLOGY JOURNAL[Internet]. 2019;7(2 ):7-21. Available from: https://sid.ir/paper/264133/en

IEEE: Copy

REZA EBRAHIMI, MOSTAFA GHAYOUR, and HESHMATALLAH MOHAMMAD KHANLO, “Influence of friction and clearance in auxiliary bearings on chaotic vibration of a coaxial rotor supported by active magnetic bearings,” AEROSPACE KNOWLEDGE AND TECHNOLOGY JOURNAL, vol. 7, no. 2 , pp. 7–21, 2019, [Online]. Available: https://sid.ir/paper/264133/en

Related Journal Papers