摘要
目的研究挂锁着舰过程中飞行员头颈部受力状况，为制定头颈部损伤预防、诊断和治疗方案提供理论依据。方法从头颈部生理解剖结构、颈椎应力特性和颈部肌张力特性等方面对头颈部进行力学模型抽象，建立飞行员处于坐姿状态下的头颈部多刚体转动模型；通过弹簧阻尼运动关节对颈部的被动力学特性进行建模。结果以飞机挂锁动力学数据作为输入，构建了拦阻着舰飞行员头颈部力学响应仿真模型，提出了挂锁动力学和生物力学双线程仿真流程，将影响动态响应的相关因素纳入仿真过程中；对仿真模型的验证方法进行了说明，并对影响建模精度的因素进行了分析。结论影响舰载机拦阻着舰的因素是多方面的，加速度特性曲线不仅与飞行员头颈部的生理结构、飞机着舰初速度、重量、拦阻锁特性有关，而且与挂锁位置、挂锁时飞机姿态等因素都有关，数学仿真是研究头颈部动态响应机制的可行方法。
Objective To study the dynamic response of the head and neck for the pilots during arrested deck landing for prevention, diagnosis and treatment of head and neck injuries. Methods The multi-rigid-body model of the pilot in driving posture was established by abstracting head and neck physiological anatomy, cervical vertebra stress characteristics and cervical muscle tension characteristics. The passive neck properties were modeled by spring-damper paralleling link. Results A head and neck dynamic response model was established by taking the arrested motion data as the input. Also, the simulation architecture, simulation process and validation methods were demonstrated. The double thread simulation process of dynamics and biomechanics were established, and the related factors that affect the dynamic response were included in the simulation process. The verification method of the simulation model was described and the factors affecting the accuracy of modeling were analyzed. Conclusions The factors affecting the reliability of simulation and the accuracy of the model are varied. Accelerating curve of head is affected not only by physiological structure of neck, initial velocitv of aircraft landing, weight of plane and property of arrested device,but also by the position of arrested device and attitude of aircraft during arresting. The mathematical simulation could be a feasible tool of studying the dynamic response mechanism of head and neck in arrested deck landing.
出处
《中华航空航天医学杂志》
CSCD
2017年第1期5-10,共6页
Chinese Journal of Aerospace Medicine
基金
武器装备军内科研项目（15A504）
关键词
头部
颈
动力学
模型
理论
仿真
动态响应
挂锁着舰
Head
Neck
Kinetics
Models, theoretical
Simulation
Dynamic response
Arrested deck landing
