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박영철(Young Chul Park),오세욱(Sae Wook Oh),조용배(Yong Bae Cho),허정원(Chung Weon Hue),이명렬(Myung Reyl Lee) 한국해양공학회 1992 韓國海洋工學會誌 Vol.6 No.1
Recently, the robot actuator worked by the driving recovery-force of the thermo elastic martensitic transformation of shape memory alloys(SMA) has been studied. In general, such a SMA actuator necessitates a number of cyclic repeated motion, so that the investigation of gradual decrease of recovery force with repeated motion cycle as well as the prevention of such a degradation of shape memory effect(SME) are very important for the actual use of a robot actuator.<br/> However, such research and discussions about the degradation of SME are very few up to the present. Therefore, in this study, the characteristics of the cyclic deformation and degradation of SME of Ti-Ni alloy would be investigated and discussed in detail by current heat type fatigue tester, which is a newly designed fatigue tester by author.<br/> In addition, we will establish a new design concept for robot actuator from these result.