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锁机构动力学性能对飞行器任务完成和安全性起着至关重要的作用,但其研究多集中在实验测试方面,造成数据匮乏,无法有效建立其动力学数据库。分析了锁机构的受载情况,建立了锁机构的动力学数学模型,采用CATIA软件构建了锁机构的三维实体装配模型,提出了利用机械动力学分析软件ADAMS建立该系统动力学虚拟样机模型的方法,仿真研究了加载情况下锁机构的运动规律,建立实验装置验证了仿真模型的正确性和有效性,获得了较为完整的虚拟试验数据。结果表明,数学模型解析解与ADAMS仿真结果吻合较好,变化趋势一致,与实验结果较为贴近。该方法简单、可靠,具有较强实用性,能准确反映锁机构的实际运动规律,为锁机构的设计应用提供一定的技术支持。
The dynamic performance of the locking mechanism plays a crucial role in the mission completion and safety of the aircraft. However, most researches focus on the experimental testing, resulting in the lack of data and the inability to effectively establish its dynamic database. The load situation of the lock mechanism is analyzed, the dynamic mathematical model of the lock mechanism is established, the three-dimensional solid assembly model of the lock mechanism is constructed by using CATIA software, and the system dynamics virtual prototype model is established by using the mechanical dynamic analysis software ADAMS The simulation method is used to study the movement law of the locking mechanism under the condition of loading. The establishment of the experimental device proves the correctness and validity of the simulation model and obtains the more complete virtual test data. The results show that the analytical solution of the mathematical model agrees well with the ADAMS simulation results, and the changing trend is consistent with the experimental results. The method is simple and reliable, has strong practicability, can accurately reflect the actual movement of the locking mechanism, and provides some technical support for the design and application of the locking mechanism.