Dynamics and Control of Micropolar Material Structures with Embedded Angular Momentum

嵌入角动量的微极性材料结构的动力学与控制

基本信息

  • 批准号:
    RGPIN-2017-03866
  • 负责人:
  • 金额:
    $ 1.6万
  • 依托单位:
  • 依托单位国家:
    加拿大
  • 项目类别:
    Discovery Grants Program - Individual
  • 财政年份:
    2017
  • 资助国家:
    加拿大
  • 起止时间:
    2017-01-01 至 2018-12-31
  • 项目状态:
    已结题

项目摘要

Thirty years ago it was proposed to model structural systems that contained a very large number of gyroscopes as an elastic continuum with an embedded continuous distribution of angular momentum. The idea came from the astronautics community where the notion of very large space platforms (satellites) was popular and means of controlling their shape and orientation were of interest. Initial work established the merits of the idea for structural shape control but interest waned because these systems would not be realized owing to their cost. A new opportunity for application of this idea lies at the opposite end of the scale spectrum. Micro-Electro-Mechanical-Systems (MEMS) devices offer an unprecedented opportunity to build "smart" material systems that will macroscopically display behaviours not possible with conventional materials. With the ongoing developments in micro and nano device fabrication a material that contains an embedded, independent, and controllable distribution of angular momentum could be created, should there be compelling reasons to do so. Materials with these attributes, previously referred to as gyric materials, have received scant attention but prior work has established their potential for structural shape control. This ability could be beneficially incorporated in optical devices to tune mirrors, in the active control of boundary layer behaviour in aeronautic applications, or possibly in surgical instruments where very small shape changes may be advantageous. There are many potential applications. These material models require an asymmetric stress tensor and it has been shown that material models that assume asymmetric strain and stress tensors are effective and applicable at the micron scale. Hence it is proposed that an investigation into the dynamics and control of material and structural systems with fundamental contributions from distributed inertial, elastic, dissipative, and gyroscopic influences be undertaken using a micropolar theory of elasticity.
30年前,有人提出将包含大量陀螺仪的结构系统建模为具有嵌入的连续角动量分布的弹性连续体。这一想法来自空间科学界,在那里,非常大的空间平台(卫星)的概念很受欢迎,控制其形状和方向的方法也很有趣。最初的工作建立了结构形状控制的想法的优点,但兴趣减弱,因为这些系统将不会实现,由于其成本。应用这一思想的一个新的机会在于规模范围的另一端。微机电系统(MEMS)器件为构建“智能”材料系统提供了前所未有的机会,这些材料系统将在宏观上显示传统材料不可能的行为。随着微米和纳米器件制造的不断发展,如果有令人信服的理由,可以创建包含嵌入式,独立和可控角动量分布的材料。具有这些属性的材料,以前被称为回转材料,很少受到关注,但以前的工作已经建立了它们的结构形状控制的潜力。这种能力可以有利地结合在光学装置中以调谐反射镜,在航空应用中的边界层行为的主动控制中,或者可能在非常小的形状变化可能是有利的外科手术器械中。有许多潜在的应用。这些材料模型需要不对称的应力张量,并且已经证明假设不对称应变和应力张量的材料模型在微米尺度上是有效且适用的。因此,建议调查的动力学和控制的材料和结构系统的基本贡献分布的惯性,弹性,耗散和陀螺仪的影响进行使用微极弹性理论。

项目成果

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Heppler, Glenn其他文献

Heppler, Glenn的其他文献

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{{ truncateString('Heppler, Glenn', 18)}}的其他基金

Dynamics and Control of Micropolar Material Structures with Embedded Angular Momentum
嵌入角动量的微极性材料结构的动力学与控制
  • 批准号:
    RGPIN-2017-03866
  • 财政年份:
    2021
  • 资助金额:
    $ 1.6万
  • 项目类别:
    Discovery Grants Program - Individual
Dynamics and Control of Micropolar Material Structures with Embedded Angular Momentum
嵌入角动量的微极性材料结构的动力学与控制
  • 批准号:
    RGPIN-2017-03866
  • 财政年份:
    2020
  • 资助金额:
    $ 1.6万
  • 项目类别:
    Discovery Grants Program - Individual
Dynamics and Control of Micropolar Material Structures with Embedded Angular Momentum
嵌入角动量的微极性材料结构的动力学与控制
  • 批准号:
    RGPIN-2017-03866
  • 财政年份:
    2019
  • 资助金额:
    $ 1.6万
  • 项目类别:
    Discovery Grants Program - Individual
Development of Machine Learning Based Predictive Modeling for Forest Biomass Estimation**
基于机器学习的森林生物量估算预测模型的开发**
  • 批准号:
    537549-2018
  • 财政年份:
    2018
  • 资助金额:
    $ 1.6万
  • 项目类别:
    Engage Grants Program
Enhancement and Verification of Input Selection Methods for Predictive Modeling in Life Cycle Management
生命周期管理中预测建模输入选择方法的增强和验证
  • 批准号:
    522090-2018
  • 财政年份:
    2018
  • 资助金额:
    $ 1.6万
  • 项目类别:
    Engage Plus Grants Program
Dynamics and Control of Micropolar Material Structures with Embedded Angular Momentum
嵌入角动量的微极性材料结构的动力学与控制
  • 批准号:
    RGPIN-2017-03866
  • 财政年份:
    2018
  • 资助金额:
    $ 1.6万
  • 项目类别:
    Discovery Grants Program - Individual
Development of Input Selection Methods for Predictive Modelling in the Health Monitoring of Gas Turbine Engines
燃气轮机健康监测预测建模输入选择方法的开发
  • 批准号:
    513460-2017
  • 财政年份:
    2017
  • 资助金额:
    $ 1.6万
  • 项目类别:
    Engage Grants Program
Adaptive interpolation modeling techniques towards reduced numerical CFD grid computation
用于减少数值 CFD 网格计算的自适应插值建模技术
  • 批准号:
    499382-2016
  • 财政年份:
    2016
  • 资助金额:
    $ 1.6万
  • 项目类别:
    Engage Plus Grants Program
Development of intelligent interpolation models based on limited and expensive CFD and FEA simulations for real-time applications
基于有限且昂贵的 CFD 和 FEA 仿真开发智能插值模型,用于实时应用
  • 批准号:
    478367-2015
  • 财政年份:
    2015
  • 资助金额:
    $ 1.6万
  • 项目类别:
    Engage Grants Program
Dynamics and control of micropolar material structures with embedded angular momentum
嵌入角动量的微极性材料结构的动力学与控制
  • 批准号:
    6208-2011
  • 财政年份:
    2015
  • 资助金额:
    $ 1.6万
  • 项目类别:
    Discovery Grants Program - Individual

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