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Modeling and vibration control of a smart vibration isolation system based on magneto-sensitive rubber

机译：基于磁敏橡胶的智能隔振系统的建模与振动控制

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摘要

Magneto-sensitive (MS) rubber is a kind of smart material, the shear modulus of it can be changed rapidly and reversibly by a magnetic field applied. A smart MS rubber-based isolation system and a nonlinear model based on this MS rubber-based vibration isolation system are developed in this paper. The influence of the amplitude, frequency and magnetic dependency for MS rubber, the mechanical inertance of infinite extended foundation, the mass of solid block and the dimension of MS rubber isolators are all considered in this model. The feasibility of two control strategies aimed at reducing the energy transmitted to the foundation and protecting machine against foundation motion, respectively, is investigated based on this smart vibration isolation system. It is found that compared to the traditional passive rubber isolators, an enhanced vibration isolation effect can be achieved by using MS rubber isolators after control strategies applied. Furthermore, the influence of the amplitude dependency and the response time of MS rubber to the isolation effect is studied. The nonlinear model established for MS rubber isolation system, the control strategies developed and the investigation for the amplitude dependency and the response time of MS rubber to the isolation effect in this paper provide fundamentals for the application of MS rubber in the field of vibration reduction.
机译：磁敏敏感（MS）橡胶是一种智能材料，可以通过施加的磁场快速且可逆地改变它的剪切模量。本文开发了一种智能MS橡胶基隔离系统和基于MS橡胶基振动隔离系统的非线性模型。 MS橡胶的幅度，频率和磁依赖性的影响，无限延伸基础的机械惯性，固体块的质量和MS橡胶隔离器的尺寸都在该模型中考虑。基于该智能振动隔离系统，研究了两个控制策略的可行性，旨在减少传递给基础和保护机的保护机，防止基础运动。结果发现，与传统的无源橡胶隔离器相比，通过在施加控制策略后，可以通过使用MS橡胶隔离器来实现增强的振动隔离效果。此外，研究了MS橡胶对隔离效果的幅度依赖性和响应时间的影响。为MS橡胶隔离系统建立的非线性模型，对该纸张振幅依赖性的控制策略以及对MS橡胶对隔离效果的响应时间提供了对振动减排领域的基础知识。

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