Switching linear quadratic Gaussian control of a flexible blade structure containing magnetorheological fluid

Sivrioğlu, Selim; Bolat, Fevzi Çakmak

doi:10.1177/0142331219878956

Cited by 12 publications

(5 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Zhang et al [8] proposed the use of a tuned mass-damper-inerter (TMDI) to mitigate edgewise blade vibrations. Sivrioglu et al [9] proposed an active control structure with a switching algorithm for controlling the current of the electromagnetic actuator that contains magnetorheological (MR) fluid to suppress vibrations of a flexible blade element. Zhou et al [10] reviewed the piezoelectric shunt damping technique as an aero-engine blade vibration suppression method.…”

Section: Introductionmentioning

confidence: 99%

Review on applications of piezoelectric materials for aero-engine blade vibration suppression

Jiang

et al. 2023

Third International Conference on Mechanical Design and Simulation (MDS 2023)

View full text Add to dashboard Cite

Unexpected vibration of aero-engine blades may lead to fatigue failure. In order to reduce the harmful vibration of aero-engine blades, many smart materials have been employed for blade vibration suppression applications. Among them, a hot research area is vibration suppression using piezoelectric materials with damping circuits or active vibration control algorithms, by providing new and effective methodology to suppress the vibration of aero engines. This paper summarizes the current research status of vibration suppression for aero-engine blades using piezoelectric materials in recent years. Firstly, the structure of aero-engine and the background of vibration suppression are introduced briefly; secondly, the design process and several typical applications of passive vibration suppression and active vibration suppression methods are reviewed, their advantages and disadvantages are compared; finally, conclusions are made and some suggestions are summarized for the next generation smart structure aero-engine blades, such as the necessity of global geometry optimization and topology optimization, integrated structural/control optimization for engineering applications.

show abstract

Section: Introductionmentioning

confidence: 99%

Review on applications of piezoelectric materials for aero-engine blade vibration suppression

Jiang

et al. 2023

Third International Conference on Mechanical Design and Simulation (MDS 2023)

View full text Add to dashboard Cite

show abstract

“…When the rheological properties of MR fluid change, its stiffness and damping characteristics also change, and can be controlled by the external magnetic field [21,22]. Based on the above features, MR devices as well as MR adaptive structures exhibit tremendous advantages over traditional ones with similar function [23,24]. In order to make better use of this smart material in practical engineering applications, relevant investigations have been conducted on rheological properties of MR fluid.…”

Section: Introductionmentioning

confidence: 99%

Research on the vibration transmission characteristics of quasi-periodic impedance layered structure constructed by magnetorheological fluid

Si¹,

Wang²,

Sun³

2022

Smart Mater. Struct.

View full text Add to dashboard Cite

In this work, the theoretical and experimental study on vibration transmission in quasi-periodic impedance layered structures built by magnetorheological (MR) fluid is conducted. Based on the MR effect of MR fluid, the quasi-periodic layered structures formed by low and high impedance layers following Fibonacci, Thue-Morse and multiperiodic sequences are constructed, respectively. These different quasi-periodic patterns can be flexibly obtained by controlling the arrangement style and magnetic field strength of electromagnets outside the MR fluid. The vibration transfer model is established based on the transfer matrix method and the trends of vibration level difference with different parameters are analyzed. Furthermore, experiments are performed to estimate the vibration transmissivity of the proposed structures. It indicates that the developed quasi-periodic impedance layered structures can exhibit greater damping effect on vibrations by appropriately increasing the magnetic field strength and thickness ratio of low to high impedance layers. Moreover, there exist quasi-periodic impedance patterns whose attenuation effect on vibration is better than that of periodic pattern in the frequency range studied in this paper (20~200Hz). This means that the introducing of the particular quasi-periodicity increases the transmission loss of vibrations in a certain frequency range. This investigation is conducive to further expand the application of MR materials and quasi-periodic structures in the field of vibration control.

show abstract

“…The urgent need for more efficient, robust, and costeffective damping devices has led to the recent development of magnetorheological (MR) damper based method [20]. It has been noted that as one of the most representative semiactive control devices, MR damper can achieve a flexible control effect at a small amount of energy consumption [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Single input magnetorheological pseudo negative stiffness control for bridge stay cables

Xu¹,

Xu²,

Guo³

et al. 2020

Smart Mater. Struct.

View full text Add to dashboard Cite

The bridge stay cable, one of the most critical components in cable-stayed bridges, is vulnerable to vibrations owing to its low inherent damping capacity. Thus effective vibration control technology for bridge stay cables is extremely critical to safe operations of cable-stayed bridges. Several countermeasures have been presented and/or implemented to mitigate this vibration; however the passive method can only add a small amount of damping to the cables, excessive energy demand of active control devices severely limits its practicality, the semi-active control methods still have the drawbacks of complex state estimation module and a large amount of control algorithm calculation. This paper proposes a practical magnetorheological pseudo negative stiffness (MR-PNS) control system coupled with control strategy for bridge stay cables. The current reference point is introduced in the dynamic modeling of the MR-PNS control system to characterize the current control strategy. This paper investigates the adjustable of MR-PNS control system performance and energy consumption caused by different current strategies. Taking the vibration control of the Nanjing Second Yangtze River Bridge J20 cable as an example, the simulation results highlight the advantages of the MR-PNS control system that the failure area is small, the quasi-optimal area is wide, and it can still keep sort of vibration damping performance in the degenerate area. The model cable vibration control test proves the feasibility and efficiency of the single input MR-PNS bridge stay cables control method.

show abstract

Switching linear quadratic Gaussian control of a flexible blade structure containing magnetorheological fluid

Cited by 12 publications

References 15 publications

Review on applications of piezoelectric materials for aero-engine blade vibration suppression

Review on applications of piezoelectric materials for aero-engine blade vibration suppression

Research on the vibration transmission characteristics of quasi-periodic impedance layered structure constructed by magnetorheological fluid

Single input magnetorheological pseudo negative stiffness control for bridge stay cables

Contact Info

Product

Resources

About