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| Self-impact analysis of the fairing hinge system based on dynamic constitutive models |
| Received:May 03, 2016 Revised:September 07, 2016 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201704001 |
| KeyWord:dynamic constitutive model FEM explicit dynamics analysis hinge system self-impact |
| Author | Institution |
| 唐霄汉 |
大连理工大学 工程力学系, 工业装备结构分析国家重点实验室, 大连 ;北京联合大学 信息学院, 北京 |
| 李彬 |
大连理工大学 工程力学系, 工业装备结构分析国家重点实验室, 大连 |
| 李刚 |
大连理工大学 工程力学系, 工业装备结构分析国家重点实验室, 大连 |
| 郝鹏 |
大连理工大学 工程力学系, 工业装备结构分析国家重点实验室, 大连 |
| 陈聪 |
大连理工大学 工程力学系, 工业装备结构分析国家重点实验室, 大连 |
| 任明法 |
大连理工大学 工程力学系, 工业装备结构分析国家重点实验室, 大连 |
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| 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. |
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