Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Structural Engineering and Mechanics Volume 31, Number 1, January10 2009 , pages 39-56 DOI: https://doi.org/10.12989/sem.2009.31.1.039 |
|
|
|
Closed-loop active vibration control of a typical nose landing gear with torsional MR fluid based damper |
||
Sateesh B. and Dipak K. Maiti
|
||
| Abstract | ||
|
Vibration is an undesirable phenomenon in a dynamic system like lightly damped aerospace structures and active vibration control has gradually been employed to suppress vibration. The objective of the current investigation is to introduce an active torsional magneto-rheological (MR) fluid based damper for vibration control of a typical nose landing gear. They offer the adaptability of active control devices without requiring the associated large power sources. A torsional damper is designed and developed based on Bingham plastic shear flow model. The numerical analysis is carried out to estimate the damping coefficient and damping force. The designed damper is fabricated and an experimental setup is also established to characterize the damper and these results are compared with the analytical results. A typical FE model of Nose landing gear is developed to study the effectiveness of the damper. Open loop response analysis has been carried out and response levels are monitored at the piston tip of a nose landing gear for various loading conditions without damper and with MR-damper as semi-active device. The closedloop full state feedback control scheme by the pole-placement technique is also applied to control the landing gear instability of an aircraft. | ||
| Key Words | ||
| MR fluid; torsional damper; nose landing gear; full state feedback; pole placement. | ||
| Address | ||
| Sateesh B. and Dipak K. Maiti: Dept. of Aerospace Engineering, Indian Institute of Technology, Kharagpur-721302, India | ||