计算力学学报2017，Vol.34Issue(4)：403-410,8.DOI:10.7511/jslx201704001
基于动态本构模型的整流罩铰链系统自冲击分析
Self-impact analysis of the fairing hinge system based on dynamic constitutive models
摘要
Abstract
Structural analysis of the hinge system plays an important part in the large-scale payload fairing separation analysis,which is one of the key technologies during the development of new generation launch vehicles.In this paper,the dynamic constitutive models of mechanical properties of 30CrMnSiA and ZTC4-1 are obtained based on experimental study and then the finite element models of payload fairing and the hinge system with the dynamic constitutive models are established.Based on the nonlinear explicit dynamic methods,the self-impact process of the hinge system is simulated,and the stress and strain of the hinge system under the impact effect are obtained.The major internal forces of the hinge system in the self-impact process are obtained by internal force analysis.Finally,by comparing the self-impact responses of the hinge system with dynamic and quasi-static constitutive models,it is well illustrated that the dynamic constitutive model influences the simulation results.Results indicate that the self-impact effect could make the hinge system deform plastically.Moreover,the dynamic constitutive model is conducive to reflecting the reality,which provides a basis for the development of new generation launch vehicles.关键词
动态本构模型/有限元法/显式动力学/铰链系统/自冲击Key words
dynamic constitutive model/FEM/explicit dynamics analysis/hinge system/self-impact分类
数理科学引用本文复制引用
唐霄汉,李彬,李刚,郝鹏,陈聪,任明法..基于动态本构模型的整流罩铰链系统自冲击分析[J].计算力学学报,2017,34(4):403-410,8.基金项目
973项目(2014CB046506) （2014CB046506）
国家自然科学基金(11372062,11402049)资助项目. （11372062,11402049）
