Software-in-the-loop optimization of actuator and sensor placement for a smart piezoelectric funnel-shaped inlet of a magnetic resonance imaging tomograph

Nestorović, Tamara; Hassw, Kevin; Oveisi, Atta

doi:10.1016/j.ymssp.2020.107097

Cited by 8 publications

(4 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These afore-mentioned optimization techniques are typically dependent on theoretical models supported by accurate state-space equations to evaluate system measures such as Bruant and Proslier [18], H 2 /H ∞ norms [19,20] (openloop methods), or system responses under given control laws [21,22] (closed-loop methods) to construct optimization criteria representing system vibrations. Although these methods are effective in optimizing actuator/sensor configurations, they share a common limitation: relying on accurate parametric models.…”

Section: Introductionmentioning

confidence: 99%

Optimization of the on/off status configuration of control units in an active vibration isolation system—experiment

Wu,

Zheng,

et al. 2024

Smart Mater. Struct.

View full text Add to dashboard Cite

Active vibration isolation (AVI) is an important measure to attenuate vibration transmission in underwater vehicles and multiple active control units are usually used to attenuate low frequency vibrations induced by power equipment. Under certain operation conditions, however, the pre-installed control units in an AVI system may be redundant. Hence, it is necessary to optimize the on/off status configuration of all the control units. An optimization approach is proposed for configuration optimization of control units and validated by experiments. The criterion of the proposed approach is derived from the vibration responses of the monitoring points. The involved optimization, formulated as a constrained 0-1 nonlinear programming problem, utilizes the on/off status of control units as the input variable and the number of active units as the constraint. Optimized configurations were obtained by solving the nonlinear programming problem and deployed to the experimental system. The test results have demonstrated that vibration of the monitoring points can be effectively suppressed by activating only a portion of control units, and the configurations corresponding to maximum vibration reduction vary with different excitations.

show abstract

Section: Introductionmentioning

confidence: 99%

Optimization of the on/off status configuration of control units in an active vibration isolation system—experiment

Wu,

Zheng,

et al. 2024

Smart Mater. Struct.

View full text Add to dashboard Cite

show abstract

“…By evaluating the placement index of candidate positions across the entire surface of the structure, the SIL testing method with recursive communication between numerical simulation FE software and Python-designed optimization tool can be achieved in every optimization iteration. 15 To evaluate the superiority and inferiority of the container receiving algorithm and promote the optimization of intelligent algorithms, calculation is carried out through the construction of a hierarchical generalized network driving model and a container receiving evaluation model.…”

Section: Introductionmentioning

confidence: 99%

“…Kevin Hassw and Atta Oveisi proposed an optimization program for piezoelectric structures based on surface optimization method, which combines software‐in‐the‐loop (SIL) testing approach and balanced modal reduction, and uses norms in the placement index. By evaluating the placement index of candidate positions across the entire surface of the structure, the SIL testing method with recursive communication between numerical simulation FE software and Python‐designed optimization tool can be achieved in every optimization iteration 15 …”

Section: Introductionmentioning

confidence: 99%

Design and development of in‐the‐loop test and evaluation platform for space allocation at shipping container terminal

Liang

Zhao

et al. 2023

Adv Control Appl

View full text Add to dashboard Cite

As a vital component in the shipping industry, coastal container terminals must be developed in a sustainable manner. The container receiving process is a crucial aspect of container loading and transportation and is the cornerstone of container terminal operations. This process is characterized by its discrete random events. To model this process, the testbed was designed and developed using a Hierarchical Generalized Stochastic Petri Net (HGSPN) workflow engine to drive the data and simulate the container receiving process through the interplay of resources and changes. Random indexing was utilized to mimic the discrete randomness of the operations. The performance of the container receiving process was validated and evaluated through the construction of an operational energy and efficiency‐focused container receiving evaluation model. Results showed that the intelligent container receiving system, tested on the in‐loop platform, can effectively evaluate the strengths and weaknesses of container receiving, leading to continuous improvement of the system and demonstrating its significant practical value.

show abstract

“…According to the above literature review, many optimization criteria have been proposed so far [14]. Among those optimization criteria, the most commonly used criterion is the maximization of controllability/observability and the minimization of control spillover as proposed by Hac and Liu [15], because this criterion is based on the inherent dynamic properties of the structure, and the optimal results can be less sensitive to a change of control strategy [16,17]. However, this criterion usually cannot distribute the control efficiencies of multimode averagely, thus leading to multi-mode peaks' reductions unevenly.…”

Section: Introductionmentioning

confidence: 99%

Multi-mode Vibration Averagely Control for Cylindrical Shells by Optimally Distributed Piezoelectric Sensors and Actuators

Guo

et al. 2022

J. Vib. Eng. Technol.

View full text Add to dashboard Cite

Purpose Multi-modal vibration control often causes modal peaks' reductions unevenly, which makes the active vibration suppression system less effective to the broadband disturbance. To this end, a multi-mode vibration average suppression method for cylindrical shells with optimally distributed piezoelectric sensors and actuators (S/As) is proposed in this paper. Methods Based on the equivalent homogenized parameters of the macro-fiber composite (MFC), the modal control force of MFC with a tilt angle is derived. Its form is similar to that of the modal sensing signal with a tilt angle. A modified S/As placement optimization criterion of maximum observability and controllability for average distribution of the control efficiencies of multi-mode is also proposed. Thus, an optimization model of considering the positions and orientations of orthotropic piezoelectric S/As for the cylindrical shell multi-mode vibration control is established. Result The proposed method is applied to optimize the S/As distribution of a cantilever cylindrical shell. The results of optimization placement show that the S/As are placed near the free ends, their tilt angles tend to π/2 rad. To valid the effectiveness of optimized S/As distribution, a linear quadratic Gaussian (LQG) controller with Kalman filter is applied to control the response of cylindrical shell under the harmonic and transient excitations. Conclusion The vibration control system with S/As distribution optimized by the modified criterion could suppress all the response peaks more averagely than that under the original criterion, and achieve better vibration control performance. In addition, including the tilt angle in the optimization problem, the efficiency and the uniformity of the multi-mode vibration suppression system could be improved.

show abstract

Software-in-the-loop optimization of actuator and sensor placement for a smart piezoelectric funnel-shaped inlet of a magnetic resonance imaging tomograph

Cited by 8 publications

References 19 publications

Optimization of the on/off status configuration of control units in an active vibration isolation system—experiment

Optimization of the on/off status configuration of control units in an active vibration isolation system—experiment

Design and development of in‐the‐loop test and evaluation platform for space allocation at shipping container terminal

Multi-mode Vibration Averagely Control for Cylindrical Shells by Optimally Distributed Piezoelectric Sensors and Actuators

Contact Info

Product

Resources

About