火星探测器轨道鲁棒性设计与工程可靠性分析

项目名称： 火星探测器轨道鲁棒性设计与工程可靠性分析

项目编号： No.61472375

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 计算机科学学科

项目作者： 戴光明

作者单位： 中国地质大学（武汉）

项目金额： 84万元

中文摘要： 火星探测器轨道设计是火星探测工程关键问题之一。火星探测器轨道优化的能量函数具有参数空间大、多峰多谷、极值点伴生、存在奇异点等特征，目前常采用圆锥曲线拼接等方法设计初轨，在此基础上进行精确轨道设计，但其鲁棒性较差。本课题以火星探测工程实际应用为目的，在研究地-火转移工程轨道设计与优化模型基础上，提出一种演化圆锥曲线模型和基于协同演化框架优化算法来提高初轨设计效率；通过研制逐次逼近打靶法来提高基于B平面微分修正的鲁棒性，实现地-火精确轨道求解。在地-火转移中途修正中引入多目标思想，实现修正次数和修正能量的均衡。最后，对计算结果进行工程可靠性分析，提出一个目标为解的质量、另一目标为解的可靠性的多目标优化思想来进行最优解工程可靠性分析，并利用物理模型对结果分析验证。沿着这条技术路线展开研究，将能在深空探测器轨道设计，特别是轨道鲁棒性设计和工程可靠性分析上取得突破性进展，同时将丰富鲁棒性和可靠性理论

中文关键词： 火星探测器轨道；鲁棒性设计；工程可靠性；多目标优化

英文摘要： Orbit design of Mars is one of the key problems of Mars exploration engineering. The large parameter space, multiple peaks and valleys, extreme point, singularity characteristics and many characters are associated with Mars exploration trajectory energy function optimization. Now Patched Conic Method is widely used for designing the initial orbit, which is the basis of precise orbit design. But it has poor robustness. The Mars exploration project aim at practical applications, based on Earth to Mars design and optimization of transfer engineering track model, propose an Evolution Conic model and optimization algorithm based on co-evolution to make the initial orbit design efficiency. Robustness of B-Plane differential correction is improved through the research of the Successive Approximation Method, and then the problem of precise orbit from Earth to Mars can be solved. By introducing the multi-objective theory into the middle correction of Earth to Mars transfer, the number of iteration and the energy can be balanced. Finally, the calculation results are engineering reliability analysis, we proposed a multi-objective method, which set an object as the quality of solutions and another object as the reliability of solutions, to analyze the engineering reliability of the best solution and use physical model for further analysis of the result. Along the route of our technique, deep space orbit design, especially the robustness of the design of orbit, and the engineering reliability analysis will make breakthroughs. The theory of robustness and reliability will be enriched as well.

英文关键词： Mars probe orbit;robustness design;engineering reliability analysis;multi-objective optimization