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| 基于动载的伞降模拟训练系统轨迹设计方法 |
| Trajectory design method of parachute landing simulation training system based on dynamic load |
| 投稿时间：2023-11-11 修订日期：2023-12-26 |
| DOI： |
| 中文关键词: 动载 轨迹设计 伞训系统 圆形降落伞 运动学 |
| 英文关键词: dynamic load Trajectory design Parachute training system Circular parachute Kinematics |
| 基金项目:国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 中文摘要: |
| 为解决现有的伞降模拟训练平台缺乏有效的训练轨迹设计，导致伞降模拟训练过程体感和心理感适度较低的问题，提出了一种基于动载的伞降模拟训练系统轨迹设计方法。本文以圆形降落伞为研究对象，建立了人-伞多体动力学模型，基于四阶Rouge-Kutta法，开展了受训员在离机阶段、开伞阶段和着陆阶段的载荷研究，得到了受训员在低空伞降过程的载荷变化规律；基于Z-Score方法，完成了数据的归一化处理，得到了合理实施范围内的伞降载荷变化数据；结合12m高的实感伞降训练模拟系统，基于系统映射模型设计了训练轨迹，并利用皮尔逊相关系数进行了伞降理论动载与训练轨迹载荷的匹配度研究，设计轨迹与理论数据的匹配度为96.51%。结果表明，本文提出的设计方法可行有效，为伞降模拟训练系统设计提供理论参考依据。 |
| 英文摘要: |
| In order to solve the problem that the existing parachute simulation training platform lacks effective training trajectory design, which leads to a low fitness of physical and psychological senses in the parachute simulation training process, a trajectory design method based on the dynamic load of parachute simulation training system is proposed. This paper takes circular parachute as the research object, establishes the human-parachute multibody dynamics model, and based on the fourth-order Rouge-Kutta method, carries out the load research of the trainee in the stage of leaving the airplane, the stage of opening the parachute, and the stage of landing, and obtains the change rule of the load in the process of parachute descent of the trainee in the low-altitude parachute; Based on the Z-Score method, the normalization of the data was completed, and the parachute load variation data within a reasonable implementation range was obtained; Combined with the 12m high realistic parachute training simulation system, the training trajectory was designed based on the system mapping model, and the matching degree of the theoretical dynamic load of parachute and the training trajectory load was studied by using the Pearson correlation coefficient, and the matching degree of the designed trajectory and the theoretical data was 96.51%. The results show that the design method proposed in this paper is feasible and effective, and provides theoretical reference basis for the design of parachute simulation training system. |
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