Browse > Article
http://dx.doi.org/10.3795/KSME-A.2010.34.5.619

Influence of Heat Treatment Conditions on Temperature Control Parameter ((t1) for Shape Memory Alloy (SMA) Actuator in Nucleoplasty  

Oh, Dong-Joon (Dept. of Mechanical Education, Andong Nat'l Univ.)
Kim, Cheol-Woong (Research Institute of Tech. & Eng., Korea Univ. / Triple-C Medical Corp.)
Yang, Young-Gyu (R&D Center, Triple-C Medical Corp.)
Kim, Tae-Young (R&D Center, Triple-C Medical Corp.)
Kim, Jay-Jung (Dept. of Mechanical Engineering, Hanyang Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.34, no.5, 2010 , pp. 619-628 More about this Journal
Abstract
Shape Memory Alloy (SMA) has recently received attention in developing implantable surgical equipments and it is expected to lead the future medical device market by adequately imitating surgeons' flexible and delicate hand movement. However, SMA actuators have not been used widely because of their nonlinear behavior called hysteresis, which makes their control difficult. Hence, we propose a parameter, $t_1$, which is necessary for temperature control, by analyzing the open-loop step response between current and temperature and by comparing it with the values of linear differential equations. $t_1$ is a pole of the transfer function in the invariant linear model in which the input and output are current and temperature, respectively; hence, $t_1$ is found to be related to the state variable used for temperature control. When considering the parameter under heat treatment conditions, $T_{max}$ was found to assume the lowest value, and $t_1$ was irrelevant to the heat treatment.
Keywords
Shape Memory Alloy(SMA); Time Domain Open Loop; Open Loop Step Response; Transfer Function; Heat Treatment; Free Convection Coefficient;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
Times Cited By SCOPUS : 1
연도 인용수 순위
1 Chen Y. C., Lee S. H. and Chen D., 2003, "Intradiscal Pressure Study of Percutaneous Disc Decompression with Nucleoplasty in Human Cadavers," Spine Journal, Vol.28, No.7, pp.661-665.   DOI
2 Cheol-Woong Kim, 2008, "Guide for Inserting Surgical Appliances into Living Body," Korean Patent, Regist. No. 10-0849228 (23th July).
3 Cheol-Woong Kim, 2009, "Surgical Appliance for Insertion into in-vivo," Korean Patent, Regist. No. 10-0896750 (30th April).
4 Yun Luo, Takeshi Okuyama, Toshiyuki Takagi, Takamichi Kamiyama, Kotaro Nishi and Tomoyuki Yambe, 2005, "Thermal Control of Shape Memory Alloy Artificial Anal Sphincters for Complete Implantation," Smart Mater. Struct. Vol. 14, pp.29-35.   DOI   ScienceOn
5 Maria Marony Sousa Farias Nascimento, Carlos Jose de Araújo, Jose Sergio da Rocha Neto, Antonio Marcus Nogueira de Lima, 2006, "Electro Thermomechanical Characterization of Ti-Ni Shape Memory Alloy Thin Wires," Materials Research, Vol. 9, No. 1, pp.15-19.   DOI
6 Zanotti, C., Giuliani, P., Tuissi, A., Arnaboldi, S. and Casati, R., 2009, "Response of NiTi SMA Wire Electrically Heated," ESOMAT 2009, 06037.
7 Wang, Z.G., Zu, X.T., Feng, X.D., Zhu, S., Deng, J. and Wang, L.M., 2004, "Effect of Electrothermal Annealing on the Transformation Behavior of TiNi Shape Memory Alloy and Two-Way Shape Memory Spring Actuated by Direct Electrical Current," Physica B : Condensed Matter, Vol. 349, No. 1-4, pp.365-370   DOI   ScienceOn
8 Myung-Soon Kim, Seung-Ki Lee, Seung-Woo Na and Sang-Hoon Lee, 1997, "Characterization of Shape Memory Alloy Springs with the Variation of Heat Treatment Conditions, Transaction of the Korean Institute of Electrical Engineers, Vol.46, No.3, pp.445-449.
9 Morgan, N. B. and Broadley, M., 2004, "Taking the Art Out of Smart! - Forming Processes and Durability Issues for the Application of NiTi Shape Memory Alloys in Medical Devices," Proceedings from the Materials & Processes for Medical Devices Conferences, 8-10 Sept, ASM International
10 Bhattacharyya A., Sweeney L. and Faulkner M. G., 2002, "Experimental Characterization of Free Convection During Thermal Phase Transformations in Shape Memory Alloy Wires," Smart Materials and Structures, Vol.11, No.3, pp.411-422.   DOI   ScienceOn
11 Danny Grant and Vincent Hayward, 1997, "Variable Structure Control of Shape Memory Alloy Actuators," IEEE Systems and Control Magazine, Vol. 17, No. 3, pp. 80-88.   DOI
12 Sanghaun Kim and Maenghyo Cho, 2007, "Experimental Test and Numerical Simulation on the SMA Characteristics and Behaviors for Repeated Actuations," Transactions of the Korean Society of Mechanical Engineers A, Vol.31, No.3, pp.373-379.   DOI   ScienceOn
13 Young-Jin Kim, Jong-Ha Chung and Jung-Ju Lee, 2008, "Analysis on the Behavior of the Shape Memory Alloy using Abaqus UMAT," Transactions of the Korean Society of Mechanical Engineers A, Vol.32, No.12, pp.1153-1160.   DOI   ScienceOn
14 Dong-Joon Oh, Cheol-Woong Kim, Tae-Young Kim, Ho-Sang Lee and Jay-Jung Kim, 2010, "Evaluation of Thermoelectric Characteristics of Peltier Thermoelectric Module for Increasing Response Velocity in Shape Memory Alloy (SMA) Steering Catheter," Transactions of the Korean Society of Mechanical Engineers B, Vol.34, No.3, pp.301-307.   DOI   ScienceOn
15 Kim, T.Y. and Nam, T.H., 2003, "Heat Treatments of Ti-Ni based Shape Memory Alloys," Journal of the Korean Society of Heat Treatment, Vol.16, No.6, pp.349-355.
16 Smith, J. F., Luck, R., Jiang, Q. and Predel, B., 1993, "The Heat Capacity of Solid Ni-Ti Alloys in the Temperature Range 120 to 800 K," Journal of Phase Equilibria, Vol. 14, No. 4, pp. 494-500.   DOI
17 The Yee H. and Feather Stone Roy, 2007, Frequency Response Analysis of Shape Memory Alloy Actuators, Proc. International Conference on Smart Materials and Nanotechnology in Engineering, Vol. 6423(3), pp.64232J.1-64232J.7