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Parametric model of servo-hydraulic actuator coupled with a nonlinear system: Experimental validation

机译:伺服液压执行器与非线性系统耦合的参数模型:实验验证

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摘要

Hydraulic actuators play a key role in experimental structural dynamics. In a previous study, a physics-based model for a servo-hydraulic actuator coupled with a nonlinear physical system was developed. Later, this dynamical model was transformed into controllable canonical form for position tracking control purposes. For this study, a nonlinear device is designed and fabricated to exhibit various nonlinear force-displacement profiles depending on the initial condition and the type of materials used as replaceable coupons. Using this nonlinear system, the controllable canonical dynamical model is experimentally validated for a servo-hydraulic actuator coupled with a nonlinear physical system.
机译:液压执行器在实验结构动力学中起着关键作用。在先前的研究中,开发了基于物理模型的伺服液压执行器并结合了非线性物理系统。后来,此动力学模型被转换为可控的规范形式,用于位置跟踪控制。对于本研究,根据初始条件和用作可替换试样的材料类型,设计并制造了一种非线性器件,以显示各种非线性力-位移曲线。使用该非线性系统,对与非线性物理系统耦合的伺服液压执行器进行了实验验证,该可控规范动力学模型得到了验证。

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