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首页> 外文会议>IMAC-XXI: a conference amp; exposition on structural dynamics >Vibration Control using Frequency Dependent Viscoelastic Structural Elements
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Vibration Control using Frequency Dependent Viscoelastic Structural Elements

机译：使用频率相关的粘弹性结构元件进行振动控制

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摘要

The effective control of vibration is essential inrnremote sensing applications to achieve the neededrnresolution to observe features on Earth from a spacernplatform. A passive system that has the ability to effectivelyrnreduce the response of a structure due to base excitationrnover a large frequency range is advantageous. In thisrnmanner not only is the system self contained and reliable,rnbut it does not use limited resources available in a spacernenvironment that an active system requires. A vibrationrnamplitude limiting system has been developed that usesrnboth vibration isolation and absorber components. With thernappropriate parameters chosen the device can limitrnoscillation amplitudes to an acceptable level over arnprescribed frequency range. By using viscoelastic structuralrnelements both spring and damping properties are introducedrnin a single element, which also demonstrate favorablernfrequency dependent response. A translation amplitudernlimiting vibration system has been designed, analyzed, built,rnand tested. Both the theoretical and the experimentalrntransmissibility as a function of frequency are performed. Arnsummary of these results will be presented along with arncomparison to a more conventional vibrationrnisolation/absorber system using nonfrequency dependentrnelements.
机译：有效的振动控制是必不可少的远程感测应用程序，以实现所需的分辨率，以从spacer平台观察地球上的特征。具有能够有效地减小由于在大频率范围上的基本激励而引起的结构的响应的能力的无源系统是有利的。在这种方式中，系统不仅是独立的，可靠的，而且没有使用主动系统所需的隔离环境中可用的有限资源。已经开发了一种振动振幅限制系统，该系统同时使用了隔振和减振器组件。通过选择适当的参数，该设备可以在预定的频率范围内将振荡幅度限制在可接受的水平。通过使用粘弹性结构元件，弹簧和阻尼特性都被引入到单个元素中，这也显示出良好的频率依赖性响应。已经设计，分析，构建，测试了平移幅度限制振动系统。进行了理论和实验的透射率随频率的变化。这些结果的摘要将与使用非频率相关元件的更常规的振动隔离/吸收器系统进行比较。

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