Research and Development of the Friction Pendulum Isolation Device with Poly-Curvature (Investigation of Isolation Performance on Shake Test and Response Analysis Using Vending Machine Model)

聡, 藤田; 浩道, 山本; 喜浩, 北川; 浩, 倉林

doi:10.1299/kikaic.69.1990

Cited by 6 publications

(2 citation statements)

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“…So some small base isolation systems that can easily be installed inside buildings are developed for them [2]. For example, roller type using liner rail isolation device [3] and friction pendulum isolation device with poly-curvature rail [4,5] are used. However, mechanisms of them are complicated, it is not easy to install.…”

Section: Introduction mentioning

confidence: 99%

Effects of Bearing Type on Seismic Response of Small Base Isolation System Using Friction Bearings

Kurita¹,

Kezuka²,

Aoki³

et al. 2014

JCEA

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In this study, dynamic characteristics of the small base isolation system using new friction bearings are investigated by excitation experiment, and compared to other one using previous bearings. Peak amplitude of the acceleration response waves on the small base isolation system is decreased to about 10%-25% compared to the input waves. Also root mean square amplitude is decreased to about 10%-40%. In case of the ball embedded a cylindrical sponge, the new bearing, the damping ratio increases with increasing width of the cylindrical sponge. The natural frequency does not change. On the other hand, in case of the marble plate that is previous bearing, the damping ratio increases with increasing curvature radius of the marble plate, the natural frequency also increases. Therefore, the small base isolation system using new friction bearing provides better performance. The responses of the base isolation system indicate nonlinier effects by friction force.

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Section: Introduction mentioning

confidence: 99%

Effects of Bearing Type on Seismic Response of Small Base Isolation System Using Friction Bearings

Kurita¹,

Kezuka²,

Aoki³

et al. 2014

JCEA

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“…The office automation equipments set inside, such as photo copy machine, are overturning in the earthquake, because they are higher for their width and depth. So, devices to decrease seismic response, which can be set up inside the building structure, have been extensively developed (1) . We have developed a device using friction farce to reduce seismic response.…”

Section: Introductionmentioning

confidence: 99%

OS09F044 Vibration analysis of reduction for seismic response of system using friction bearing

OOKI¹,

Kurita²,

Aoki³

et al. 2011

ATEM

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A new device of reduction for seismic response using friction bearings was developed. In this paper, dynamic characteristics of isolated plate using this device were investigated by vibrations tests by artificial time histories. The peak acceleration amplitude on isolated plate has decreased to about 50-90%. Although a spectral peak around 0.5 Hz that is natural frequency of isolated plate was identified, the amplitude of spectral peak was decreased using bearing with high friction. This device is useful for reduction of seismic response.

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Recent advances in nonlinear passive vibration isolators

Ibrahim

2008

Journal of Sound and Vibration

947

387

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Research and Development of the Friction Pendulum Isolation Device with Poly-Curvature (Investigation of Isolation Performance on Shake Test and Response Analysis Using Vending Machine Model)

Cited by 6 publications

References 0 publications

Effects of Bearing Type on Seismic Response of Small Base Isolation System Using Friction Bearings

Effects of Bearing Type on Seismic Response of Small Base Isolation System Using Friction Bearings

OS09F044 Vibration analysis of reduction for seismic response of system using friction bearing

Recent advances in nonlinear passive vibration isolators

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