Abstract
We design, fabricate and test a non-explosive separation actuator(NEA) that can replace the pyro-type device. Considering installation space, generative force, actuation time and shock level due to actuation, the proposed NEA employs a wire-type shape memory alloy(SMA). Through theoretical analysis and experiment, the specifications of the SMA wire to activate the separation device are determined. Then, an NEA with two wire-type SMAs is fabricated to activate two times. One is the primary actuator and the other one is redundant in case the primary actuator fails. In order to increase the reliability of the device, operation tests are performed more than 10 times. In addition, a release shock test under zero gravity condition was also carried, and this testrevealed very low shock compared to that of the pyro-type device. Conclusively, we developed an NEA that can operate reliably within 0.7 sec while generating less than 30G in the shock response spectrum(SRS).
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References
Fosness, E. R., Buckley, S. J. and Gammill, W. F., “Deployment and Release Devices Efforts at the Air Force Research Laboratory Space Vehicles Directorate,” Proc. of AIAA Space 2001 Conference, Paper code AIAA-2001-4601, 2001.
Moening, C. J., “Pyroshock Flight Failures,” Proc. of 31st Annual Technical Meeting of the Institute of Environmental Sciences, 1985.
Lucy, M., Hardy, R., Kist, E., Watson, J. and Wise, S., “Report on Alternative Devices to Pyrotechnics on Spacecraft,” Proc. of 10th Annual AIAA/USU Conference on Small Satellites, 1996.
Lee, E.-S., Shin, T.-H., Kim, B.-K. and Baek, S.-Y., “Investigation of Short Pulse Electrochemical Machining for Groove Process on Ni-Ti Shape Memory Alloy,” Int. J. Precis. Eng. Manuf., Vo l. 11, No. 1, pp. 113–118, 2010.
Todoroki, A., Kumagai, K. and Matsuzaki, R., “Self-deployable Space Structure using Partially Flexible CFRP with SMA Wires,” Journal of Intelligent Material Systems and Structures, Vol. 20, No. 12, pp. 1415–1424, 2009.
Cho, K.-J., Koh, J.-S., Kim, S., Chu, W.-S. and Hong, Y., “Review of manufacturing processes for soft biomimetic robots,” Int. J. Precis. Eng. Manuf., Vol. 10, No. 3, pp. 171–181, 2009.
Carpenter, B. and Lyons, J., “EO-1 Technology Validation Report: Lightweight Flexible Solar Array Experiment Technical report,” NASA Godard Space Flight Center, 2001.
Lan, X., Leng, J. S. and Du, S. Y., “Design of a Deployable Antenna Actuated by Shape Memory Alloy Hinge,” Materials Science Forum, Vol. 546–549, pp. 1567–1670, 2007.
Busch, J. D., Purdy, W. E. and Johnson, A. D., “Development of a Non-explosive Release Device for Aerospace Application,” Proc. of 26th Aerospace Mechanisms Symp., pp. 1–16, 1992.
TiNi Aerospace, Inc., http://www.tiniaerospace.com
Vazquez, J. and Bueno, J. I., “Non Explosive Low Shock Reusable 20kN Hold-down Release Actuator,” Proc. of 9th European Space Mechanisms and Tribology Symposium, pp. 131–135, 2001.
Dynalloy, Inc., http://www.dynalloy.com
Himelblau, H., Wise, J. W., Piersol, A. G. and Grundvig, M. R., “Handbook for Dynamic Data Acquisition and Analysis,” Institute of Environmental Sciences, 1994.
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Lee, MS., Jo, JU., Tak, WJ. et al. Shape memory alloy (SMA) based non-explosive separation actuator (NEA) with a redundant function. Int. J. Precis. Eng. Manuf. 12, 569–572 (2011). https://doi.org/10.1007/s12541-011-0072-1
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DOI: https://doi.org/10.1007/s12541-011-0072-1