摘要
完成副油箱弹射系统的力学分析与软件协同仿真。首先,分析某型副油箱弹射机构多体系统的运动和受力,利用SolidWorks和ADAMS软件,建立弹射机构的虚拟样机,进行动力学仿真;进而,对恢复弹簧进行动塑性冲击的理论分析,并利用Ansys和LS-DYNA软件对弹簧进行有预应力的冲击响应仿真。仿真结果表明,弹射机构可以顺利解锁进行弹射工作,弹射速度满足设计要求,与实际机构工作情况吻合;仿真得到的弹簧塑性变形和残余应力的分布规律与实际情况吻合,为弹簧的进一步优化设计工作提供有效的参考依据。
Mechanics analysis and collaborative simulation of ejection system of the auxiliary fuel tank were preformed.Firstly,the kinematics and loads of the multibody system were analyzed.Moreover,a virtual prototype of the ejection system was assembled,and the dynamic simulation was done by SolidWorks and ADAMS softwares cooperatively.Then,theoretical analysis of dynamic plastic impact for the restoring spring was carried out,and the impact responding simulation including for the restoring spring was implemented by Ansys and LS-DYNA softwares cooperatively.The simulation results indicate that the mechanism can release the tank favourably and the desired ejection velocity can be obtained,which match with the actual working conditions of the mechanism.The simulated plastic deformation and the distribution of residual stress of the spring are in accordance with the real situation.The analysis and simulation provide a valid reference for the further spring optimization.
出处
《机械强度》
CAS
CSCD
北大核心
2011年第1期34-39,共6页
Journal of Mechanical Strength
基金
教育部留学回国人员实验室基金资助(030401)~~
关键词
虚拟样机
弹射机构
多体系统动力学
弹塑性力学
动力学仿真
有限元
Virtual prototype
Ejection system
Dynamics of multibody system
Plastoelasticity
Dynamic simulation
Finite element method（FEM）
