Optimum Design of Si-Cr Alloy Springs for Seismic Vibration Isolator

Abstract:

In this paper, a dynamic stress analysis of seismic vibration isolator was carried out by using ANSYS. The vibration isolator consisted of Si-Cr springs and magnetorheological dampers. The stress and deformation of the springs were calculated when an impact load was applied to the isolator. From the simulation for six different springs, in terms of their wire dimeter and coil diameter, an optimum shape of the springs to minimize the stress and deformation was determined.

• Periodical: Key Engineering Materials (Volume 725)
• Pages: 700-705
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.725.700
• Online since: December 2016
• Authors: Dyi Cheng Chen*, Shih Hung Kao, Li Ren Chen, Sheng Jung Wang, Chih Yuan Chen, Chen Kun Huang
• Keywords: Magnetorheological Dampers, Si-Cr Alloy Spring, Vibration Isolation Device

References

[1] G. Heo, C. Kim, C. Lee, Experimental test of asymmetrical cable-stayed bridges using MR-damper for vibration control, Journal of Sound and Vibration, 2014, 78–85.

DOI: 10.1016/j.soildyn.2013.10.007

[2] P. Francesc, R. Arturo, A. Leonardo, V. Yolanda, Jose´ Rodellar, Control of base-isolated systems using force feedback, 2011 American Control Conference on O'Farrell Street, San Francisco, CA, USA, June 29 - July 01, (2011).

DOI: 10.1109/acc.2011.5991304

[3] M. Ala Saadeghvaziri, B. Feizi, L. Kempner Jr., D. Alston, On seismic response of substation equipment and application of base isolation to transformers, IEEE Transactions on Power Delivery 25(1) (2010) 177-186.

DOI: 10.1109/tpwrd.2009.2033971

[4] A. Toyooka, Y. Murono, Y. Nogami, T. Nishimura, Effect of inertial and kinematic interaction on seismic behavior of various types of structures, quarterly report of RTRI (Railway Technical Research Institute) 53 (2) (2012) 93-101.

DOI: 10.2219/rtriqr.53.93

[5] T. Kinoshita, M. Ohsaki, Shape optimization of compliant mechanisms for seismic isolator model, Journal of Structural and Construction Engineering (Transactions of AIJ) 75 (647) (2010) 113-119.

DOI: 10.3130/aijs.75.113

[6] X. Luo, T. Kawanishi, Study on seismic isolation foundations with ability to convert response direction based on sliding isolator sysytem, Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE) 66 (1) (2010).

DOI: 10.2208/jscejseee.66.105

[7] Q. Zhou et al., Semi-active control of three-dimensional vibrations of an inclined sag cable with magneto rheological dampers, Journal of Sound and Vibration 296 (2006) 1–22.

DOI: 10.1016/j.jsv.2005.10.028

[8] Q. Sun, J. Zhou, L. Zhang, An adaptive beam model and dynamic characteristics of magnetorheological materials, Journal of Sound and Vibration 261(3) (2000) 465–481.

DOI: 10.1016/s0022-460x(02)00985-9