形状记忆合金隔振系统非线性动力特性
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Nonlinear Dynamic Characteristics of Shape Memory Alloy Vibration Isolation System
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    摘要:

    建立双旗回环形状记忆合金隔振系统,利用平均法和稳定性分析,提出快速求解双旗回环形状记忆合金隔振系统的方法,得到4种形式的幅频曲线及其临界载荷,选出适用于隔振设计的幅频曲线形式,并通过传递率曲线验证其隔振效果,为隔振设计提供参考。求解峰值响应与载荷幅值的关系,从而可通过载荷大小判断幅频曲线形式,并判断峰值响应频率,为避免共振提供参考。研究滞回曲线参数对幅频曲线的影响,给出滞回曲线参数的建议取值区间,为形状记忆合金的设计制造提供参考。

    Abstract:

    The SMA vibration isolation system of double-flag ring is established, and the method of fast solving the SMA vibration isolation system of doubleflag ring is put forward by the average method and stability analysis. Four kinds of amplitudefrequency curves and their critical loads produced by different load amplitudes are obtained, the appropriate amplitude-frequency curve form for vibration isolation design is selected, and the vibration isolation effect is verified by the transmission rate curve. The results provide a reference for the design of vibration isolation. The relationship between the peak response and the load amplitude is solved, so that the amplitude-frequency curve form can be determined by the load size, and the peak response frequency can be determined to provide a reference for avoiding resonance. The influence of the parameters of the hysteresis curve on the amplitude-frequency curve is studied, and the recommended value range of the parameters of the hysteresis curve is given, which provides a reference for the design and manufacture of SMA.

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胡凡俊.形状记忆合金隔振系统非线性动力特性[J].中国海洋平台,2020,(05):

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  • 在线发布日期: 2020-11-06