Seismic isolation device having charging function by a transducer

Takashi Yamaguchi; Nanako Miura; Masaki Takahashi

doi:10.1117/12.2218788

15 April 2016 Seismic isolation device having charging function by a transducer

Takashi Yamaguchi, Nanako Miura, Masaki Takahashi

Proceedings Volume 9799, Active and Passive Smart Structures and Integrated Systems 2016; 979931 (2016) https://doi.org/10.1117/12.2218788
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2016, Las Vegas, Nevada, United States

Abstract

In late years, many base isolated structures are planned as the seismic design, because they suppress vibration response significantly against large earthquake. To achieve greater safety, semi-active or active vibration control system is installed in the structures as earthquake countermeasures. Semi-active and active vibration control systems are more effective than passive vibration control system to large earthquake in terms of vibration reduction. However semi-active and active vibration control system cannot operate as required when external power supply is cut off. To solve the problem of energy consumption, we propose a self-powered active seismic isolation floor which achieve active control system using regenerated vibration energy. This device doesn’t require external energy to produce control force. The purpose of this study is to propose the seismic isolation device having charging function and to optimize the control system and passive elements such as spring coefficients and damping coefficients using genetic algorithm. As a result, optimized model shows better performance in terms of vibration reduction and electric power regeneration than the previous model. At the end of this paper, the experimental specimen of the proposed isolation device is shown.

Citation Download Citation

Takashi Yamaguchi, Nanako Miura, and Masaki Takahashi "Seismic isolation device having charging function by a transducer", Proc. SPIE 9799, Active and Passive Smart Structures and Integrated Systems 2016, 979931 (15 April 2016); https://doi.org/10.1117/12.2218788

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available