Implementation of a partially decentralized control architecture using wireless active sensors

Debattisti, Nicola; Bacci, Maria Laura; Cinquemani, Simone

doi:10.1088/1361-665x/ab6158

Cited by 5 publications

(6 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The limiting gain between the maximum gain related to the actuator dynamics and saturation gains is the one related to the current saturation, which is assigned to the parameter g max,i,j . Then, the introduced damping and modal displacement weights are calculated according to Equations ( 10) and (11), considering a given vibration state. Finally, the multiplication between the two weights provide the final weight that modulates g max,i,j .…”

Section: Numerical Resultsmentioning

confidence: 99%

“…This wireless data sharing between devices has been already used in a control system, where two wireless nodes were considered [10,11]. A Selective Negative Derivative Feedback (SNDF) control law has been implemented in [10].…”

Section: Introductionmentioning

confidence: 99%

“…The novelty of this method with respect to EMC is to exploit the introduced damping as a weighting parameter. The introduced damping weight is calculated in Equation (11) as the ratio of the damping, introduced by the j-th actuator in the i-th mode, and the maximum damping introduced among any actuator-mode couple:…”

Section: Introduced Damping Weightmentioning

confidence: 99%

See 2 more Smart Citations

Automatic Decentralized Vibration Control System Based on Collaborative Stand-Alone Smart Dampers

2023

Self Cite

View full text Add to dashboard Cite

In many structures, undesired noise and vibrations generated by external sources represent a huge problem in terms of structural damage and comfort. Active vibration absorbers can be used to dynamically suppress vibrations, by increasing the damping of the system. A wireless smart active damper has been developed to perform this task and some automated functionalities have been implemented to perform the identification of the structure on which it is mounted on. The sharing of information between wireless sensors represents one of the most interesting features of this kind of control system. In this work, a procedure to estimate the nondimensional damping and modal amplitude for each wireless sensor location and each vibration mode is studied. Then, the information obtained by each sensor in the identification phase are used to implement a coordinated control strategy, which is based on a modified version of the Efficient Modal Control (EMC). Such control strategy implements the low level Selective Negative Derivative Feedback control law and modulates the control gains of each actuator and controlled mode pair in order to get an effective vibration reduction. The tuning procedure represents the next step of the algorithm, in which the evaluation of the introduced damping and the maximum applicable gains are derived; finally, the proposed solution is validated with experimental results on a simply-supported beam.

show abstract

Section: Numerical Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Automatic Decentralized Vibration Control System Based on Collaborative Stand-Alone Smart Dampers

2023

Self Cite

View full text Add to dashboard Cite

show abstract

“…Examples can be found in applications developed for vibration and pressure monitoring on freight wagons [20,21], and the monitoring of wind turbines [22] and bridges [23]. Some applications of wireless sensors can also be found in the context of active control [24,25].…”

Section: Wireless Sensor Nodes Descriptionmentioning

confidence: 99%

Continuous Monitoring of Transmission Lines Sag through Angular Measurements Performed with Wireless Sensors

et al. 2023

View full text Add to dashboard Cite

High voltage transmission lines are crucial infrastructure that are demanded to supply an increasing request of electric energy. In the design and operations stages, sag represents a key parameter which must respect specific constraints. Therefore, sag continuous monitoring is becoming essential to guarantee the correct functioning of the line and to optimize the current flow. Different solutions have been proposed in literature, but they are still lacking efficiency and reliability to be used during operations. In this work, a simple and efficient method, based on conductor parabolic approximation, is developed and used to compute the sag through the measurement of the conductor slope in proximity of the span extremities. The angular measurements are obtained using wireless sensors equipped with MEMS accelerometers developed by authors and employed for HVTL conductor vibration monitoring. The proposed method and its implementation in the monitoring system was tested in a laboratory environment on a real conductor. The values of sag at different tensile loads have been obtained and compared to the measured ones, with satisfactory results according to the accelerometer resolution. The solution developed therefore represents a complete and innovative tool to be adopted in the field to monitor, in real time, both the sag and the level of vibration due to the wind action, allowing to increase the performance reliability of HVTL.

show abstract

“…Wireless sensors have been developed for monitoring activities in various complex fields, such as monitoring of wind-induced vibration on transmission line conductors [14], dynamics of freight wagon vehicle and the infrastructure [15,16], and historical buildings [17]. Some applications of wireless sensors can also be found in the active vibration control field [18,19].…”

Section: Introductionmentioning

confidence: 99%

Development and Field Validation of Wireless Sensors for Railway Bridge Modal Identification

et al. 2023

View full text Add to dashboard Cite

Bridges are strategic infrastructures which are subject to degradation during their lifetime. Therefore, structural health monitoring is becoming an essential tool in this field to drive maintenance activities. Conventional vibration monitoring systems relying on wired sensors present several limitations for continuous monitoring projects on a huge number of structures. In this work, a smart wireless monitoring system is developed for bridge modal identification with the aim of providing an alternative tool to wired sensors in this field. The main peculiarities of the designed wireless accelerometers are the low cost, the ease of installation on the structure, and the long-term autonomy granted by the use of energy harvesting techniques. To assess their measurement performance, some prototypes were installed for a field test on a railway bridge and significant data were acquired. Through the processing of the collected data, bridge main natural frequencies were estimated, and their values were in good agreement with the reference ones obtained with a conventional system. The assessment of the developed solution paves the way to the instrumentation of many bridges with the aim of performing continuous monitoring activities using simple diagnostic indicators, such as the variation of frequencies in time.

show abstract

Implementation of a partially decentralized control architecture using wireless active sensors

Cited by 5 publications

References 27 publications

Automatic Decentralized Vibration Control System Based on Collaborative Stand-Alone Smart Dampers

Automatic Decentralized Vibration Control System Based on Collaborative Stand-Alone Smart Dampers

Continuous Monitoring of Transmission Lines Sag through Angular Measurements Performed with Wireless Sensors

Development and Field Validation of Wireless Sensors for Railway Bridge Modal Identification

Contact Info

Product

Resources

About