Development and application of induced-strain actuators for building structures

Koichi Morita; Takafumi Fujita; Shiro Ise; Ken-ichi Kawaguchi; Takayoshi Kamada; Hideo Fujitani

doi:10.1117/12.434143

30 July 2001 Development and application of induced-strain actuators for building structures

Koichi Morita, Takafumi Fujita, Shiro Ise, Ken-ichi Kawaguchi, Takayoshi Kamada, Hideo Fujitani

Proceedings Volume 4330, Smart Structures and Materials 2001: Smart Systems for Bridges, Structures, and Highways; (2001) https://doi.org/10.1117/12.434143
Event: SPIE's 8th Annual International Symposium on Smart Structures and Materials, 2001, Newport Beach, CA, United States

Abstract

Induced strain actuator (ISA) can change their own shapes according to external electric/magnetic fields, and vice versa. Recently these materials have been widely used for the small/precision. The objectives in this study are to develop smart members for building and to realize the smart, comfortable and safe structures. The research items are 1) Semi-active isolation of structures using piezoelectric actuator, 2) Using ISA as sensor materials and 3) Improvement of Acoustic Environment. Semi-active base isolation system with controllable friction damper using piezoelectric actuators is proposed. Simulation study was carried out, and by semi-active isolation, it could be realized to reduce response displacement of the structure to 50% of values of the passive isolation. ISA materials can act as sensors because they cause change of electric or magnetic fields under deformation. PVDF sensors are suitable for membrane structures. We evaluate performance of PVDF sensors for membrane structures by experiment. Polymer based ISA films or distributed ISA devices can control vibration mode of plane members. Applications to music halls or dwelling partition walls are expected. Results of experimental studies of noise control are discussed.

Citation Download Citation

Koichi Morita, Takafumi Fujita, Shiro Ise, Ken-ichi Kawaguchi, Takayoshi Kamada, and Hideo Fujitani "Development and application of induced-strain actuators for building structures", Proc. SPIE 4330, Smart Structures and Materials 2001: Smart Systems for Bridges, Structures, and Highways, (30 July 2001); https://doi.org/10.1117/12.434143

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