基于混合模型的载人空降乘员防护装置可靠性技术研究

项目名称： 基于混合模型的载人空降乘员防护装置可靠性技术研究

项目编号： No.51305047

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 机械、仪表工业

项目作者： 刘鑫

作者单位： 长沙理工大学

项目金额： 26万元

中文摘要： 载人空降即重型装备与乘员同时实施空降，一经着陆就投入战斗。目前我国由于无法解决空降乘员安全性问题，暂不具备载人空降的能力。本项目拟基于代理模型技术，在混合变量共存条件下研究针对载人空降乘员防护装置的多目标可靠性优化方法，其中主要解决的技术难点是乘员防护装置混合可靠性模型的建立和循环嵌套优化问题的求解。首先，研究适合乘员防护装置这类高维复杂问题的样本选取方法和代理模型建模方法，通过降低建立代理模型的成本来提高优化效率；其次，研究乘员防护装置代理模型管理方法，通过建立代理模型精度评价标准和更新机制来保证多目标优化的精度；然后，研究不同类型变量的处理方法，建立含混合变量的乘员防护装置可靠度模型，并提出其可靠性指标；最后，研究乘员防护系统近似多目标可靠性优化问题的有效求解方法，解决载人空降工程中的乘员安全性问题。本项目的研究，将在一定程度上构筑起乘员防护装置可靠性理论体系和促进我国军事实力的提升。

中文关键词： 载人空降；乘员防护装置；代理模型；混合模型；可靠性优化设计

英文摘要： Manned airdrop means heavy equipment and occupant are parachuted at the same time, prepared for battle once landing. Currently, how to ensure the occupant safety has been a crucial issue. To this aim, the reliability-based multi-objective optimization method is developed for occupant protection device in manned airdrop by means of approximate technique, which contains the construction of hybrid model of the occupant protection device and the solution of nesting optimization problem. Firstly, the sampling strategy and the approximate technique are presented which could improve the optimization efficiency with decrease of the computation cost. Secondly, the approximation model management technique of occupant protection device is proposed to improve the multi-optimization precision through the precision evaluation standard and updating mechanism. Thirdly, according to the treatment of hybrid variables, the reliability model of occupant protection device containing hybrid variables is constructed and the reliability evaluation criterion is suggested. Finally, the approximate reliability-based multi-objective optimization method is developed to ensure the safety of occupant in manned airdrop. The research would improve reliability technology of occupant protection device and promote Chinese military capability.

英文关键词： Manned Airdrop；Occupant Protection Device；Surrogate Model；Hybrid Model；Reliability-based Design Optimization