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New Pin Puller Based on SMA Technology for Space Applications

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Abstract

Two different versions of the Pin Puller were designed during this activity, such as one with 100 N and other with 500 N of pull force. The design of both versions is based on spheres which support the pin at the initial position and a compression spring driving once the release takes place by means of the SMA. The mechanical design of the Pin Pullers has been conceived in order to optimize the device’s weight, reduce the parts complexity, and achieve a suitable stiffness. A qualification test campaign for the Pin Puller with 500 N of pull force has been developed in order to check the success of the proposed mechanism for space applications. The main performed tests have been thermal-vacuum actuation, thermal-vacuum cycling, sine vibration, and random vibration. The Pin Puller has presented successful results of actuation during the test campaign

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Authors and Affiliations

  1. Arquimea Ingeniería, C/ Margarita Salas 16, 28919, Leganés, Spain

    Nestor Nava, Marcelo Collado & Ramiro Cabás

Authors
  1. Nestor Nava
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  2. Marcelo Collado
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  3. Ramiro Cabás
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Corresponding author

Correspondence to Ramiro Cabás.

Additional information

This article is an invited paper selected from presentations at the International Conference on Shape Memory and Superelastic Technologies 2013, held May 20-24, 2013, in Prague, Czech Republic, and has been expanded from the original presentation.

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Nava, N., Collado, M. & Cabás, R. New Pin Puller Based on SMA Technology for Space Applications. J. of Materi Eng and Perform 23, 2712–2718 (2014). https://doi.org/10.1007/s11665-014-0973-0

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  • DOI: https://doi.org/10.1007/s11665-014-0973-0

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