Further Steps Towards the Tuning of Inertial Controllers for Broadband-Frequency-Varying Structures

Soria Herrera, José Manuel and Muñoz Díaz, Iván and García-Palacios, Jaime H. (2020). Further Steps Towards the Tuning of Inertial Controllers for Broadband-Frequency-Varying Structures. "Structural Control and Health Monitoring", v. 27 (n. 1); pp. 2461-2470. ISSN 1545-2263. https://doi.org/10.1002/stc.2461.

Description

Title: Further Steps Towards the Tuning of Inertial Controllers for Broadband-Frequency-Varying Structures
Author/s:
  • Soria Herrera, José Manuel
  • Muñoz Díaz, Iván
  • García-Palacios, Jaime H.
Item Type: Article
Título de Revista/Publicación: Structural Control and Health Monitoring
Date: January 2020
ISSN: 1545-2263
Volume: 27
Subjects:
Freetext Keywords: Semi-Active Control, Vibration Control, Smart TMD, Experimental Results
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Mecánica de Medios Continuos y Teoría de Estructuras
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

There is a large number of slender structures which are prone to vibrate due to pedestrian loads. The well-known Tuned Mass Damper (TMD) is increasingly used in practice, but this device may detune under several circumstances drastically reducing its expected performance. A Semi-active TMD (STMD) provides more robustness under structure uncertainties than the passive one and may be recommended for use when several vibration modes are in the excitation range and/or when the mode to cancel has uncertainty or varies over time. The tuning of the semi-active device for these cases cannot be the same as the passive one. This paper presents a methodology for the tuning of an STMD under broad frequency-band uncertainties using an ON/OFF phase control law. This control law is experimentally implemented considering interesting practical aspects, such as the estimation of the inertial mass velocity from the measured acceleration, or a low-pass filter to avoid unnecessary control actions, among others. An optimization process using a proposed performance index is carried out. Thus, it has been demonstrated that the optimal STMD is achieved for much lower damping and higher tuned frequency than the passive one. Finally, the proposed methodology is validated with experimental results.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainRTI2018-099639-B-I00SEED-SDUnspecifiedMejora de la eficiencia estructural de puentes sometidos a acciones dinámicas: integración de amortiguadores inteligentes
Government of SpainBIA2015-71942-REDTUnspecifiedUnspecifiedRed sobre técnicas experimentales en dinámica estructural, actualizado computacional, dispositivos de mitigación de vibraciones y evaluación del estado límite de servicio

More information

Item ID: 56497
DC Identifier: http://oa.upm.es/56497/
OAI Identifier: oai:oa.upm.es:56497
DOI: 10.1002/stc.2461
Official URL: https://onlinelibrary.wiley.com/toc/15452263/2020/27/1
Deposited by: Memoria Investigacion
Deposited on: 02 Apr 2020 13:43
Last Modified: 03 Apr 2020 13:57
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