title: Deployment shock attenuation of a solar array tape hinge by means of the Martensite detwinning of NiTi Shape Memory Alloy.
abstract: This paper presents a new tape hinge for attenuating the deployment shock of a satellite solar array. This hinge uses the Martensite detwinning of Shape Memory Alloy (SMA). To attenuate the deployment shock, a NiTi SMA strip is assembled between two curved steel strips. The attenuation performance of the hinge is analyzed using a SMA detwinning constitutive equation. A prototype of the hinge is manufactured and its characteristics are measured in a bending test and in a deployment test. Finally, the deployment performance of the prototype hinge is investigated on a satellite model. It is shown that the new SMA damped tape hinge can effectively minimize the deployment shock and dynamic perturbation while also maintaining suitable deployment performance.
authors.affiliation: Korea Aerospace Research Institute, Daejeon 34133, South Korea.
authors.forename: Chang-Ho
authors.initials: CH
authors.lastname: Lee
authors.affiliation: Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, South Korea.
authors.forename: Ju-Won
authors.initials: JW
authors.lastname: Jeong
authors.affiliation: Sacheon Regional Center, Defense Agency for Technology and Quality, Dongjin-ro 420, Jinju 660-031, Gyeongsangnam-do, South Korea.
authors.forename: Young-Jin
authors.initials: YJ
authors.lastname: Kim
authors.affiliation: Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, South Korea.
authors.forename: Jung-Ju
authors.initials: JJ
authors.lastname: Lee