Backstepping design for controlling electrohydraulic servos

Ursu, Ioan; Ursu, Felicia; Popescu, Florica

doi:10.1016/j.jfranklin.2005.09.003

Cited by 64 publications

(38 citation statements)

References 14 publications

(35 reference statements)

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“…The notation B  stands for the servo actuator bandwidth angular frequency, i. e., the inverse of the time constant of the hydraulic servo actuator [37], [38]. Thus, the synthesis procedure described by the equations (1)- (16) has to be step by step performed for the aircraft extended with the state ls  of a linear servo actuator …”

Section: Incas Bulletin Volume 5 Issue 2/ 2013mentioning

confidence: 99%

Dealing with actuator rate limits. Towards IQC-based analysis of aircraft-pilot system stability

Ursu¹,

Toader²,

Carafoli³

2013

INCAS BULLETIN

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Section: Incas Bulletin Volume 5 Issue 2/ 2013mentioning

confidence: 99%

Dealing with actuator rate limits. Towards IQC-based analysis of aircraft-pilot system stability

Ursu¹,

Toader²,

Carafoli³

2013

INCAS BULLETIN

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“… Performing a calculation using the nominal data of the servomechanism SMH (see also [2]- [6]) from the aileron chain of IAR 99 shows that inequality (9) is satisfied, which is not the case for the servomechanism with 2  greater than 1,. ( see Fig.…”

Section: Incas Bulletin Volume 4 Issue 3/ 2012mentioning

confidence: 99%

The kinematics of the rigid feedback linkage, the impedance of the hydraulic servomechanism and the flutter occurrence

Ursu¹,

Carafoli²

2012

INCAS BULLETIN

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“…The backstepping control method is also presented in [8] to [10] where this technique is explained in detail for regulating and tracking problem.…”

Section: Introductionmentioning

confidence: 99%

Design of Lyapunov Based Nonlinear Position Control of Electrohydraulic Servo Systems

Detiček

Kastrevc

2016

SV-JME

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Electrohydraulic servo systems take important place in modern industrial automation. It has been used in many kinds of mechanizations, including robots, computer numerical control (CNC) press brakes, computer controlled testing machines, etc.Electro hydraulic actuator system has become one of the most important actuators in the recent decades. It offers many advantages such as good capability in positioning, fast and smooth response characteristics and high power density. Due to its capability in positioning it has given a significant impact in modern equipment for position control applications [1] and [2]. The applications in position control can be found in production assembly lines, robotics, aircrafts and testing equipment [3] and [4]. However, excellent positioning in these applications requires an accurate electro hydraulic actuator. Therefore, the development of suitable controller which could reflect such characteristics is very significant, although the dynamics of electro hydraulic servo system is highly nonlinear [5] and [6].In ordinary feedback systems the method of feedback linearization is used to eliminate nonlinearities. Feedback linearization employs changes of coordinates to transform a given nonlinear system into equivalent linear one. A major advantage of feedback linearization approach is related to the cancelations of systems nonlinear dynamics that are introduced in design process. On the other hand some kinds of nonlinearities can have positive effects on system stability, therefore their cancellation can lead to instability in the presence of modelling uncertainties. As a solution to this problem the integrator backstepping approached is proposed. The fundamental concept of backstepping method is introduced by Krstic et.al. in their book [7].The approach focusing on the stabilization problem in stochastic nonlinear systems is developed in the extension of this book.

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Backstepping design for controlling electrohydraulic servos

Cited by 64 publications

References 14 publications

Dealing with actuator rate limits. Towards IQC-based analysis of aircraft-pilot system stability

Dealing with actuator rate limits. Towards IQC-based analysis of aircraft-pilot system stability

The kinematics of the rigid feedback linkage, the impedance of the hydraulic servomechanism and the flutter occurrence

Design of Lyapunov Based Nonlinear Position Control of Electrohydraulic Servo Systems

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