摘要
级间分离S形分离钢索结构复杂,高速分离过程涉及大变形、复杂非线性接触等问题,其动态变形及力学特性分析是工程设计的难点之一。基于Abaqus建立S形分离钢索动态分离仿真模型,分析了S形分离钢索高速分离动态变形过程及力学特性,并通过地面试验进一步验证建模方法的正确性。研究了S形分离钢索长度、截面直径、拖尾长度、分离速度等多种敏感因素的影响,对工程实际具有一定的指导意义。
The structure of S-shaped cable is complex.When S-shaped cable is separated at high speed,it has large deformation and complex nonlinear contact.The analysis of dynamic deformation and mechanical characteristics of S-shaped cable is one of the difficulties in engineering design.ABAQUS is used to establish the dynamic simulation separation model of separation cable.The dynamic deformation mechanism and mechanical characteristics of S-shaped cable are analyzed,and the correctness of the modeling method is further verified by the ground experiment.The influence of various sensitive factors,such as length,section diameter,tail length and separation speed of S-shaped cable is studied,which can provide analysis method and reference for engineering application.
作者
董瑞涛
林三春
荀飞
刘金峰
付继伟
DONG Ruitao;LIN Sanchun;XUN Fei;LIU Jinfeng;FU Jiwei(Beijing Institute of Astronautical Systems Engineering,Beijing,100076)
关键词
级间分离
S形分离钢索
高速分离
变形过程
力学特性
interstage separation
S-shaped cable
high speed separation
deformation process
mechanical properties
