形状记忆合金设计微执行器的数学模型及实验验证

K. Ikuta, M. Tsukamoto, S. Hirose
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引用次数: 191

摘要

提出了一种适用于形状记忆合金(SMA)微器件设计的先进数学模型,并将其应用于线圈弹簧理论,分析了形状记忆合金的机电特性。该模型可以处理SMA的三个阶段:母相、马氏体相和r相。三步。首先,在固体力学水平上对三种相的力学性能进行了建模。其次,在热力学水平上建立了热电转换模型。最后,将第一步和第二步结合起来。将该模型应用于螺旋弹簧理论,并在一般条件下进行了实验验证。
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Mathematical model and experimental verification of shape memory alloy for designing micro actuator
An advanced mathematical model of a shape memory alloy (SMA) useful for designing SMA micro-devices is proposed and applied to coil spring theory to analyze the appropriate mechanical and electrical characteristics. This model can handle three phases of the SMA: the parent phase, the martensitic phase, and the R-phase. of three steps. First, the mechanical properties of the three phases are modeled at the solid mechanics level. Second, a model of thermoelectric transformation is obtained at the thermodynamic level. Finally, the first and second steps are combined. The model was applied to coil spring theory and was verified successfully by experiments under general conditions.<>
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