Optimal Locations of Dampers/Actuators in Vibration Control of a Truss-Cored Sandwich Plate

Guo, Kongming

doi:10.5772/48615

Cited by 2 publications

(3 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Indeed, the actuators may be mounted in different orientations on a same finite element (especially when referring to a piezo stack with offset on a truss structure). To consider also different orientations and generally to reduce the set of best locations where to place the actuator/sensor, the minimization of the maximal physical control force is here chosen as the criterion to drive the actuator placement [23]. Furthermore, the latter method is suitable to be used in conjunction with the MSE approach.…”

Section: Mse|svd-basedmentioning

confidence: 99%

“…is a singular value of the matrix m B . Indeed, it can be demonstrated[23] that the physical input force* i u is proportional to the modal force * Ci f and inversely proportional to the singular value i  as indicated below J o u r n a l P r e -p r o o f the minimal singular value of a matrix m Bis larger, the maximal physical control force will be smaller. Finally, the optimization objective function may be formulated as follows…”

mentioning

confidence: 99%

See 1 more Smart Citation

End-to-end design of a robust attitude control and vibration suppression system for large space smart structures

et al. 2021

View full text Add to dashboard Cite

Section: Mse|svd-basedmentioning

confidence: 99%

mentioning

confidence: 99%

End-to-end design of a robust attitude control and vibration suppression system for large space smart structures

et al. 2021

View full text Add to dashboard Cite

“…The damping effect of the SMA damper on an engineering structure is mainly determined by its own performance, installation position, and layout number [ 27 , 28 ]. Even if its damping force is large and the shock absorption effect is good, the ideal damping effect may not be achieved if the installation position and number are inappropriate [ 29 , 30 , 31 ]. Therefore, in order to achieve the efficiency and economy of the SMA control system, it is necessary to optimize the installation position and quantity of SMA wires in the engineering application.…”

Section: Introductionmentioning

confidence: 99%

Optimized Neural Network Prediction Model of Shape Memory Alloy and Its Application for Structural Vibration Control

Zhan

Liu²,

Wang

et al. 2021

Materials

View full text Add to dashboard Cite

The traditional mathematical model of shape memory alloy (SMA) is complicated and difficult to program in numerical analysis. The artificial neural network is a nonlinear modeling method which does not depend on the mathematical model and avoids the inevitable error in the traditional modeling method. In this paper, an optimized neural network prediction model of shape memory alloy and its application for structural vibration control are discussed. The superelastic properties of austenitic SMA wires were tested by experiments. The material property test data were taken as the training samples of the BP neural network, and a prediction model optimized by the genetic algorithm was established. By using the improved genetic algorithm, the position and quantity of the SMA wires were optimized in a three-storey spatial structure, and the dynamic response analysis of the optimal arrangement was carried out. The results show that, compared with the unoptimized neural network prediction model of SMA, the optimized prediction model is in better agreement with the test curve and has higher stability, it can well reflect the effect of loading rate on the superelastic properties of SMA, and is a high precision rate-dependent dynamic prediction model. Moreover, the BP network constitutive model is simple to use and convenient for dynamic simulation analysis of an SMA passive control structure. The controlled structure with optimized SMA wires can inhibit the structural seismic responses more effectively. However, it is not the case that the more SMA wires, the better the shock absorption effect. When SMA wires exceed a certain number, the vibration reduction effect gradually decreases. Therefore, the seismic effect can be reduced economically and effectively only when the number and location of SMA wires are properly configured. When four SMA wires are arranged, the acceptable shock absorption effect is obtained, and the sum of the structural storey drift can be reduced by 44.51%.

show abstract

Optimal Locations of Dampers/Actuators in Vibration Control of a Truss-Cored Sandwich Plate

Cited by 2 publications

References 23 publications

End-to-end design of a robust attitude control and vibration suppression system for large space smart structures

End-to-end design of a robust attitude control and vibration suppression system for large space smart structures

Optimized Neural Network Prediction Model of Shape Memory Alloy and Its Application for Structural Vibration Control

Contact Info

Product

Resources

About