A Linearization Model for the Displacement Dependent Semi-active Hydraulic Damper

Go, Cheer Germ; Sui, Chung-Huan; Shih, Ming‐Hsiang; Sung, Wen‐Pei

doi:10.1177/1077546309349433

Cited by 12 publications

(7 citation statements)

References 15 publications

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“…The hydraulic dampers are widely used in many engineering structures, such as bridge (Soneji and Jangid, 2007), areospace structures (Rittweger et al., 2002), and civil building (Yun et al., 2009; Go and Sui, 2010) to absorb the shock and vibration energy, thus to attenuate the vibration response of the structure or avoid vibration damage of the equipments.…”

Section: Introductionmentioning

confidence: 99%

Modeling of a hydraulic damper with shear thinning fluid for damping mechanism analysis

Jiao

Tian

Zheng

et al. 2016

Journal of Vibration and Control

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This paper presents an analytical model for computing the force-displacement loops of the passive hydraulic dampers filled with shear thinning fluid when the damper is subjected to a sinusoidal excitation. The analytical model is developed on the basis of Navier-Stokes equations by considering the rheological behavior of silicone oil. The obtained computational results agree well with those by experimental measurements, and both of them suggests that viscous friction, fluid compressibility, and friction loss are the three major damping mechanisms of a hydraulic damper with shear thinning fluid. The damper in a low-frequency and large-amplitude vibration may have bigger viscous damping coefficient than that when it is in a high-frequency and small-amplitude vibration, which suggests that a hydraulic damper filled with shear thinning fluid can satisfy the requirement of the isolation system better.

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Section: Introductionmentioning

confidence: 99%

Modeling of a hydraulic damper with shear thinning fluid for damping mechanism analysis

Jiao

Tian

Zheng

et al. 2016

Journal of Vibration and Control

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“…A simulation model for the 10-storey shear building structure equipped with displacement-dependent semi-active hydraulic damper (DSHD) was investigated in Go et al (2010) for the purpose of practical design. Based on the linear analysis approach, the DSHD was assumed with two components: a linear spring and a linear viscous damper.…”

Section: Theoretical Issues and Numerical Simulationsmentioning

confidence: 99%

Active and semi-active control of structures – theory and applications: A review of recent advances

Casciati

Rodellar

Yıldırım

2012

Journal of Intelligent Material Systems and Structures

200

115

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It is internationally recognized that structural control was introduced in civil engineering through a pioneering article by Yao and through the implementations promoted by Kobori. The concepts of active and semi-active structural control in civil and infrastructure engineering date back 40 years and much progress has been recorded during these four decades. Periodically, state-of-the-art manuscripts have been published and technical books were also printed to testify the maturation of the topic. This article only covers the period from the second semester of 2009 to the first semester of 2011, emphasizing the developments in terms of theoretical, numerical and experimental studies, as well as the use of control algorithms and devices in actual implementations. It is observed that there are still several operational limitations to prevent from the expected growth of the applications in standard design. Nevertheless, some innovative concepts help to foresee future developments within special sectors of applications.

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“…These dampers and algorithms are still under development and are gaining more attention because of their superior compatible characteristics . Clearly, most of the recently developed algorithms for controlling the hydraulic dampers are based on on–off control techniques .…”

Section: Introductionmentioning

confidence: 99%

Improved semi-active control algorithm for hydraulic damper-based braced buildings

Azimi

Rasoulnia

Lin

et al. 2017

Struct Control Health Monit

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Summary Much research has been conducted on structural control systems to improve the seismic performance of structures under earthquakes and, ultimately, offer high performance‐resilient buildings beyond life risk mitigation. Among various structural control algorithms, semi‐active control strategies have been widely accepted for overcoming some limitations existed in either passive or active control systems, thereby leading to better structural performance over their counterparts. In this study, a new semi‐active control algorithm with minimum control parameters is developed to drive the hydraulic damper for effective control of the dynamic deformation of low‐ and high‐rise building structures under earthquake loadings. The new controller allows less input and computation for determining the damping coefficient of the hydraulic dampers while maintaining a higher performance. V‐braced buildings with three varying heights are used as prototypes to demonstrate the effectiveness of the proposed semi‐active damper. Two critical parameters, maximum drift and acceleration of stories, are defined for the performance criteria. The simulation results show that the developed semi‐active damper can significantly improve the seismic performance of the buildings in terms of controlled story drift and acceleration. By use of less input and reduced time delay effects, the proposed control system is comparable with those of existing semi‐active controllers. The findings in this study will help engineers to design control systems for seismic risk mitigation and effectively facilitate the performance‐based seismic design.

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A Linearization Model for the Displacement Dependent Semi-active Hydraulic Damper

Cited by 12 publications

References 15 publications

Modeling of a hydraulic damper with shear thinning fluid for damping mechanism analysis

Modeling of a hydraulic damper with shear thinning fluid for damping mechanism analysis

Active and semi-active control of structures – theory and applications: A review of recent advances

Improved semi-active control algorithm for hydraulic damper-based braced buildings

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