Seismic control of adaptive variable stiffness intelligent structures using fuzzy control strategy combined with LSTM

H Zhang, L Wang, W Shi - Journal of Building Engineering, 2023 - Elsevier
A novel semi-active control algorithm for adaptive variable stiffness intelligent structures that
combines the fuzzy control strategy with Long Short-Term Memory (LSTM) is proposed in …

Bi-directional semi-active tuned mass damper for torsional asymmetric structural seismic response control

L Wang, Y Zhou, S Nagarajaiah, W Shi - Engineering Structures, 2023 - Elsevier
Tuned mass damper (TMD) is a popular vibration absorber. To improve the seismic
protection performance of a bi-directional passive TMD, a bi-directional semi-active TMD …

Seismic performance improvement of base-isolated structures using a semi-active tuned mass damper

L Wang, S Nagarajaiah, W Shi, Y Zhou - Engineering Structures, 2022 - Elsevier
Base isolation can achieve a reduction in floor acceleration and inter-story drift. However, it
may suffer from excessive displacements under near-fault and far-field earthquakes. To …

Seismic control of a smart structure with semiactive tuned mass damper and adaptive stiffness property

L Wang, Y Zhou, W Shi - Earthquake Engineering and …, 2023 - Wiley Online Library
To reduce structural responses under earthquake excitations effectively and improve their
resilience, a smart structure with a semiactive tuned mass damper (STMD) on the top story …

Adaptive control of base-isolated structures against near-field earthquakes using variable friction dampers

OE Ozbulut, M Bitaraf, S Hurlebaus - Engineering Structures, 2011 - Elsevier
This paper investigates the effectiveness of two adaptive control strategies for modulating
the control force of variable friction dampers (VFDs) that are employed as semi-active …

Experimental investigation of vibration attenuation using nonlinear tuned mass damper and pendulum tuned mass damper in parallel

C Sun, S Nagarajaiah, AJ Dick - Nonlinear Dynamics, 2014 - Springer
The present paper experimentally and numerically explores the response attenuation of a
hardening Düffing oscillator using a nonlinear tuned mass damper (NTMD) and an adaptive …

Optimal PD/PID control of smart base isolated buildings equipped with piezoelectric friction dampers

S Etedali, MR Sohrabi, S Tavakoli - Earthquake Engineering and …, 2013 - Springer
Long-period pulses in near-field earthquakes lead to large displacements in the base of
isolated structures. To dissipate energy in isolated structures using semi-active control …

Hardening Düffing oscillator attenuation using a nonlinear TMD, a semi-active TMD and multiple TMD

C Sun, RP Eason, S Nagarajaiah, AJ Dick - Journal of sound and vibration, 2013 - Elsevier
This paper investigates the response attenuation of a hardening Düffing oscillator utilizing a
Nonlinear Tuned Mass Damper (NTMD), a Semi-Active Tuned Mass Damper (STMD), and a …

Benchmark structural control problem for a seismically excited highway bridge—Part III: Phase II Sample controller for the fully base‐isolated case

S Nagarajaiah, S Narasimhan… - Structural Control and …, 2009 - Wiley Online Library
This paper presents the fully base‐isolated highway bridge benchmark problem. The
highway bridge benchmark problem consists of two phases:(1) Phase I—the bridge deck …

Real‐time hybrid testing of a smart base isolation system

PC Chen, KC Tsai, PY Lin - Earthquake engineering & …, 2014 - Wiley Online Library
Real‐time hybrid testing is a very effective technique for evaluating the dynamic responses
of rate‐dependent structural systems subjected to earthquake excitation. A smart base …