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Motion and dynamic analyses of a human centrifuge system with an efficient design configuration
Aerospace Science and Technology ( IF 5.0 ) Pub Date : 2021-07-22 , DOI: 10.1016/j.ast.2021.106972
Navid Mohajer 1 , Darius Nahavandi 1 , Matthew Watson 1 , Saeid Nahavandi 1
Affiliation  

Modern high-maneuverable fighters and airplanes can expose pilots and aircrews to high-Gravity acceleration. In order to maintain air safety and superiority during operation, pilots and aircrews should have tolerance for this intense acceleration. Countermeasures can be taken to enhance the human tolerance to high-Gravity acceleration motion fields. One of the most promising solutions is acceleration physiology training using a Human Centrifuge System (HCS). Motivated by the lack of practical guidelines on design and development of HCS's structure and control algorithms, this study introduces an analysis framework towards characterising the most feasible HCS design configuration, meeting the requirements of effective centrifuge training. The proposed framework, including Inverse Kinematic and Dynamic (IKD) operation, motion analysis and sensitivity plots, can be simply applied to different design configurations with minor modification in the kinematic and dynamic algorithm. The outcomes of the study show the dependency of kinematic and dynamic responses of the system on the design and operational parameters. It is observed that the range of Coriolis acceleration and feet-to-head acceleration ratio can be minimised by adopting a proper orientation of the gondola. This outcome can be an important step towards the design of a more efficient and affordable HCS, without imposing the over-increased HCS's arm length challenges.



中文翻译:

具有高效设计配置的人体离心机系统的运动和动态分析

现代高机动战斗机和飞机可以让飞行员和机组人员承受高重力加速度。为了在操作过程中保持空中安全和优势,飞行员和机组人员应该对这种强烈的加速度有容忍度。可以采取对策来提高人类对高重力加速度运动场的耐受性。最有前途的解决方案之一是使用人体离心机系统 (HCS) 进行加速生理学训练。由于缺乏关于 HCS 结构和控制算法的设计和开发的实用指南,本研究引入了一个分析框架,以表征最可行的 HCS 设计配置,满足有效离心机培训的要求。提议的框架,包括反向运动学和动态 (IKD) 操作,运动分析和灵敏度图,可以简单地应用于不同的设计配置,只需在运动学和动力学算法中稍作修改。研究结果表明系统的运动学和动态响应对设计和操作参数的依赖性。据观察,通过采用适当的吊篮方向,可以最小化科里奥利加速度和脚对头加速度比的范围。这一结果可能是朝着设计更高效、更实惠的 HCS 迈出的重要一步,同时又不会对过度增加的 HCS 造成臂长挑战。研究结果表明系统的运动学和动态响应对设计和操作参数的依赖性。据观察,通过采用适当的吊篮方向,可以最小化科里奥利加速度和脚对头加速度比的范围。这一结果可能是朝着设计更高效、更实惠的 HCS 迈出的重要一步,同时又不会对过度增加的 HCS 造成臂长挑战。研究结果表明系统的运动学和动态响应对设计和操作参数的依赖性。据观察,通过采用适当的吊篮方向,可以最小化科里奥利加速度和脚对头加速度比的范围。这一结果可能是朝着设计更高效、更实惠的 HCS 迈出的重要一步,同时又不会对过度增加的 HCS 造成臂长挑战。

更新日期:2021-07-30
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