航空飞行器锁机构动力学建模及仿真分析  

Dynamics Model and Simulation Analysis of Locking Mechanism for Aviation Aircraft

作　　者：刘霞[1] 王三民[1] 单宁[2] 

机构地区：[1]西北工业大学机电学院,西安710072 [2]武警工程大学装备工程学院,西安710086

出　　处：《系统仿真学报》2014年第4期786-790,共5页Journal of System Simulation

基　　金：国家自然科学基金(51175422)

摘　　要：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 dynamics performance of locking mechanism is very important for mission completion and flight safety of aviation aircraft. But research of locking mechanism is focused on experimental test field mostly, which leads to lack of data. The dynamic database of locking mechanism cannot set up effectively. Dynamic mathematical model of locking mechanism was established based on analyzing the loading of locking mechanism. The 3D solid assembly model of locking mechanism was constructed by using CATIA software. The method was put forward to build dynamic virtual prototyping model of locking mechanism using mechanical dynamic analysis software ADAMS. Its motion law was simulated under the loading condition. The perfect data was obtained from virtual experiment. The experimental devices built validate correctness and validity of simulation model. The results show that analytical solution of mathematical model agrees well with ADAMS simulation results. Both trends of change are uniform. These are close to reality situation. This methodology is easy and reliable. And it has more practicability. It can more accurately reflect real motion law of locking mechanism and provide basic technical support for the design and use of locking mechanism.

关 键 词：航空飞行器 锁机构 ADAMS 动力学 

分 类 号：TH122[机械工程—机械设计及理论]