Dynamics of Systems Operating in Motion Environments

许多铰接动力系统基本上在规定的运动环境中运行。这意味着，虽然子系统与整个系统是动态耦合的，但较小的子系统受到较大系统的显著影响，但它对较大系统的影响最小。舰载系统通常属于这一类。船上设备、飞机和人员直接受到船舶运动的影响，但对其影响不大。所提出的研究的长期目标是开发适当的方法和计算工具来调查在船舶运动环境中运行的这种动态系统的复杂行为，并使用这些工具来开发对船舶系统的动态界面和行为的全面理解。短期目标包括改进以前开发的分析方法并将其扩展到新的领域。选择的应用领域包括刚性多体动力系统，其中将考虑高速飞行器上悬挂座椅的行为；柔性多体动力学系统，其中海上直升机和浮式风力机叶片瞬态动力学将被考虑；以及人类的姿势稳定性，生物动力学模型将被开发来帮助预测运动引起的中断的频率。拟议的研究将以该领域的最新进展和研究小组的成就为基础。该方法将与最近的工作保持一致，并继续涉及理论，计算和实验部分。船舶动力系统这一利基领域的基础研究备受关注，因为全球趋势是在更小的船上和日益严峻的海况下操作船舶动力系统。在接下来的十年里，随着加拿大开始了自第二次世界大战结束以来最大的造船计划，设计和建造新的护卫舰、补给船、巡逻艇和破冰船，它在加拿大特别适用。目前的研究方案将有助于最大限度地提高船上人员和设备的可操作性和安全性。

Many articulated dynamic systems operate in essentially prescribed motion environments. This means that though subsystems are dynamically coupled to the overall system, while the smaller subsystem is significantly affected by the larger system, it has minimal impact upon it. Shipboard systems often fall into this category. Shipboard equipment, aircraft, and personnel are directly affected by the ship motion but do not significantly influence it. The long-term objective of the proposed research is to develop appropriate methodology and computational tools for investigating the complex behaviour of such dynamic systems operating in shipboard motion environments, and using these tools to develop comprehensive understanding of the dynamic interfaces and behaviour of shipboard systems. Short-term objectives involve a combination of refining previously-developed analysis methodologies and expanding them into new areas. Application areas are selected to include rigid multibody dynamic systems where the behaviour of suspension seats on high speed craft will be considered; flexible multibody dynamic systems where maritime helicopter and floating wind turbine transient blade dynamics will be considered; and postural stability of humans where biodynamic models will be developed to assist in predicting the frequency of motion induced interruptions. The proposed research will build on recent advances in the field and achievements within the research group. The approach will remain consistent with recent work and continue to involve theoretical, computational, and experimental components. Fundamental research in this niche area of shipboard dynamic systems is highly topical due to a continuing global trend toward operating shipboard dynamic systems on smaller ships and in increasingly severe sea conditions. It has particular applicability in Canada over the next decade as Canada embarks on the largest shipbuilding program since the end of the Second World War with the design and construction of new frigates, supply ships, patrol boats, and icebreakers. The present research programme will contribute to maximizing operability and safety relating to shipboard personnel and equipment.