Memorias de investigación
Research Publications in journals:
Further steps towards the tuning of inertial controllers for broadband-frequency-varying structures
Year:2019

Research Areas
  • Engineering

Information
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.
International
Si
JCR
Si
Title
Structural Control & Health Monitoring
ISBN
1545-2255
Impact factor JCR
3,622
Impact info
Datos JCR del año 2017
Volume
10.1002/stc.2461
Journal number
From page
1
To page
23
Month
SIN MES
Ranking
Q1
Participants

Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Ingeniería Estructural
  • Departamento: Mecánica de Medios Continuos y Teoría de Estructuras
  • Departamento: Ingeniería Civil: Hidráulica, Energía y Medio Ambiente