Searched for: subject%3A%22Fractional%255C-order%255C+control%22
(1 - 11 of 11)
document
Kaczmarek, M.B. (author), Hassan HosseinNia, S. (author)
In this paper, a fractional-order extension of a negative position feedback (NPF) controller for active damping is proposed. The design of the controller is motivated by the frequency-domain loop shaping analysis, and the controller dynamics are defined to maintain the high-pass characteristics of an integer-order NPF. The proposed controller...
journal article 2023
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Kaczmarek, M.B. (author), Hassan HosseinNia, S. (author)
Elastic metamaterials incorporating locally resonating unit cells can create bandgap regions with lower vibration transmissibility at longer wavelengths than the lattice size and offer a promising solution for vibration isolation and attenuation. However, when resonators are applied to a finite host structure, not only the bandgap but also...
journal article 2023
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Karbasizadeh, Nima (author), Saikumar, N. (author), Hassan HosseinNia, S. (author)
This paper proposes a fractional-order reset element whose architecture allows for the suppression of nonlinear effects for a range of frequencies. Suppressing the nonlinear effects of a reset element for the desired frequency range while maintaining it for the rest is beneficial, especially when it is used in the framework of a “Constant in...
journal article 2021
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Sebastian, Aldo (author), Karbasizadeh, Nima (author), Saikumar, N. (author), Hassan HosseinNia, S. (author)
Linear control such as PID possesses fundamental limitations, seen through the Waterbed effect. Reset control has been found to be able to overcome these limitations, while still maintaining the simplicity and ease of use of PID control due to its compatibility with the loop shaping method. However, the resetting action also gives rise to...
conference paper 2021
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Ahmadi Dastjerdi, A. (author), Vinagre, Blas M. (author), Chen, Yang Quan (author), Hassan HosseinNia, S. (author)
Today, there is a great tendency toward using fractional calculus to solve engineering problems. The control is one of the fields in which fractional calculus has attracted a lot of attention. On the one hand, fractional order dynamic models simulate characteristics of real dynamic systems better than integer order models. On the other hand,...
review 2019
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Feliu-Talegon, Daniel (author), Feliu-Batlle, Vicente (author), Tejado, Inés (author), Vinagre, Blas M. (author), Hassan HosseinNia, S. (author)
The control of robots that interact with the environment is an open area of research. Two applications that benefit from this study are: the control of the force exerted by a robot on an object, which allows the robot to perform complex tasks like assembly operations, and the control of collisions, which allows the robot safely collaborate...
journal article 2019
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Chen, Linda (author), Saikumar, N. (author), Hassan HosseinNia, S. (author)
In this paper, a framework for the combination of robust fractional-order CRONE control with nonlinear reset is given for both first and second generation CRONE control. General design rules are derived and presented for these CRONE reset controllers. Within this framework, fractional-order control allows for better tuning of the open-loop...
journal article 2019
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Chen, Linda (author)
In high-tech industry (sub)nanometre precision motion control is essential. For example wafer scanners, used for production of integrated circuits, have to provide (sub)nanometre precision positioning whilst satisfying challenging requirements on speed at the same time. It is in demanding cases like this that different requirements begin to...
master thesis 2017
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Krijnen, Martijn (author), van Ostayen, R.A.J. (author), Hassan HosseinNia, S. (author)
Industry pushes towards ever faster and more accurate production of thin substrates. Contactless positioning offers advantages, especially in terms of risk of breakage and contamination. A system is considered designed for contactless positioning by floating a silicon wafer on a thin film of air. This paper focuses on the design of a control...
journal article 2017
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Marinangeli, L. (author), Alijani, F. (author), Hassan HosseinNia, S. (author)
In this paper a novel Active Vibration Control (AVC) strategy based on fractional-order calculus is developed. A fractional-order Positive Position Feedback (PPF) compensator is proposed to overcome the limitations of the commonly used integer-order PPF such as: frequency spillover, amplitude amplification in the quasi-static region of the...
journal article 2017
document
Krijnen, M.E. (author)
Industry pushes towards ever faster and more accurate production of thin substrates. Contactless positioning offers advantages, especially in terms of risk of breakage and contamination. A system is considered designed for contactless positioning by floating a silicon wafer on a thin film of air. This paper focuses on the design of a control...
master thesis 2016
Searched for: subject%3A%22Fractional%255C-order%255C+control%22
(1 - 11 of 11)