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用于低温执行器的形状记忆合金

Shunsuke Sato1, Hirobumi Tobe2, Kenichiro Sawada3

  • 1Department of Materials Science, Graduate School of Engineering, Tohoku University, Sendai, Japan.

Communications engineering
|July 16, 2025
PubMed
概括

新的Cu-Al-Mn形状记忆合金 (SMAs) 在冷温度 (50-270 K) 提供高启动应力和应变. 这些先进的SMA能够为太空望远镜提供机械热开关,从而推进低温技术.

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In analyzing a thin-walled hollow shaft subjected to torsional loading, a segment with width dx is isolated for examination. Despite its equilibrium state, this segment faces torsional shearing forces at its ends. These forces are quantitatively described by the product of the longitudinal shearing stress on the segment's minor surface and the area of this surface, leading to the concept of shear flow. This shear flow is consistent throughout the structure, indicating a uniform distribution...
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