Dynamics and Control of Future Space Access Vehicles

该博士在Orbital Access Ltd.目前正在开发的Orbital 500 R小型有效载荷发射系统概念的系统定义和初步设计阶段工作，这是自2015年以来斯特拉斯克莱德大学进行的100万英镑设计可行性研究的结果。使用Orbital 500 R和任何其他相关测试用例，项目目标是：1-开发飞行器的质量分布模型以计算惯性矩矩阵2-开发适用于发射使命的所有阶段的6DOF动力学模型3-将系统模型集成到多学科设计优化框架中，开发和调整方法，以实现有效的优化4-开发最佳控制策略，并确定制导轨迹5-开发预测控制策略，背景目前，全球航天工业的技术和经济发展受到极高的发射成本和周转时间的阻碍。增加空间进入机会的最有希望的概念之一是可重复使用的运载火箭，其形式是小型/中型有效载荷转移系统。联合王国目前在这一研究领域非常活跃，越来越多的公司投资于可重复使用的空间进入飞行器的研发。然而，这种类型的车辆尚未完全投入商业运营，这种车辆的开发将是一项重大的技术突破。斯特拉斯克莱德大学在英国和国际上被公认为航天运输设计领域的权威和先驱，在计算智能，空间使命分析和重返大气热力学方面提供长期的专业知识。最近的工作涉及系统设计优化方法，制导和控制策略，以及多目标轨迹优化的发展。空间访问是一个研究领域，在它的发展的关键点，为英国和全球。轨道500 R等可重复使用运载火箭的成功开发将大大推动英国在新的全球空间市场中的份额。

Project Summary This PhD works within the system definition and preliminary design phases of the Orbital 500R small payload launch system concept currently under development by Orbital Access Ltd. This follows on from the £1M design feasibility studies conducted by Strathclyde University since 2015. Using the Orbital 500R, and any other relevant test cases, the project objectives are: 1- Develop mass distribution models of the vehicles to calculate the moment of inertia matrix 2- Develop 6DOF dynamical models applicable to all phases of a launch mission 3- Integrate system models into a multidisciplinary design optimisation framework, developing and adapting methods to lead to an efficient optimisation 4- Develop optimal control strategies and determine guidance trajectories 5- Develop control strategies for predictive on-board control Background The technological and economic development of global space industry is currently hindered by exceedingly high launch costs and turnover times. One of the most promising concepts for increasing the availability of space access is reusable launch vehicles, in the form of small/medium payload transfer systems. The UK is currently very active in this area of research, with an increasing number of companies investing in the R&D of reusable space access vehicles. However, no vehicle of this type is yet fully commercially operational, and the development of such would represent a significant technological breakthrough. Strathclyde University is recognised in the UK, and internationally, as an authority and pioneer in the field of space transportation design, offering long standing expertise in computational intelligence, space mission analysis and re-entry aerothermodynamics. Recent work has involved the development of system design optimisation methods, guidance and control strategies, and multiobjective trajectory optimisation. Space Access is a field of research at a critical point in it's development, for both the UK and globally. The successful development of a reusable launch vehicle, such as the Orbital 500R, will significantly advance the UK towards increasing its share of the new global space-enabled market.