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首页> 外文会议>18th International Conference on Adaptive Structures and Technologies(ICAST 2007) >Modelization and Optimization of a Micro-Active Suspension used for active Vibration Isolation of sensitive Electronic Components
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Modelization and Optimization of a Micro-Active Suspension used for active Vibration Isolation of sensitive Electronic Components

机译：用于敏感电子元件主动隔振的微主动悬架的建模和优化

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摘要

In order to reduce weight and increase available space in moving structures like cars or aircraft, light-weight materials are widely used. However, they create an intense vibrating environment. At the same time, the miniaturization of electronic components makes them more and more sensitive to dynamical sollicitations. Consequently, the functional quality of embedded micro-transducers such as frequency generators or inertial sensors is strongly affected by the use of light-weight materials. To compensate this issue, the Micro-Active Suspension concept is proposed. It consists of a small suspension between a sensitive component and its electronic card, into which sensors and actuators are integrated. By using active functions, a control law can be implemented to tune the dynamical behaviour of the suspension in order to achieve the transmission of low frequency support accelerations, a drastic attenuation at the resonance frequency of the suspension and a-better decay rate at high frequency than a spring-mass-damper passive suspension. Since mass of components to be isolated is quite small, the control energy cost is reduced and can be provided by a surrounding electric source, In order to prove the validity and efficiency of this concept, a MEMS devices has been designed to isolate a small cubic mass of 7.8 mg, representative of a component to be isolated.
机译：为了减轻重量并增加诸如汽车或飞机之类的移动结构中的可用空间，轻质材料被广泛使用。但是，它们会产生剧烈的振动环境。同时，电子元件的小型化使它们对动态胶合越来越敏感。因此，嵌入式微型传感器（如频率发生器或惯性传感器）的功能质量会因使用轻质材料而受到很大影响。为了弥补这一问题，提出了微主动悬架概念。它由敏感组件与其电子卡之间的一个小悬架组成，传感器和执行器集成在其中。通过使用主动函数，可以实现控制定律来调节悬架的动力学特性，从而实现低频支撑加速度的传递，悬架共振频率的急剧衰减以及高频下更好的衰减率而不是弹簧质量阻尼器的被动悬架。由于要隔离的组件的质量非常小，因此降低了控制能量成本，并且可以通过周围的电源提供控制能量。为了证明此概念的有效性和效率，已设计MEMS设备来隔离小立方质量7.8 mg，代表要分离的组分。

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