| 胀环式飞船座椅缓冲器建模方法研究 | |
| 马春生 ; 张金换 ; 杜汇良 ; 黄世霖 ; MA Chun-sheng ; ZHANG Jin-huan ; DU Hui-liang ; HUANG Shi-lin | |
| 2010-06-04 ; 2010-06-04 | |
| 关键词 | 扩径变形 座椅缓冲器 飞船 仿真模型 tube expansion seat-bumper spacecraft numerical model V445.21 |
| 其他题名 | Numerical model development for an expanding-tube seat-bumper in a spacecraft |
| 中文摘要 | 为了对飞船座椅缓冲器参数进行优化设计,需要建立胀环式座椅缓冲器的仿真模型。基于塑性力学的相关理论,推导了胀环压入过程轴向力的计算公式,建立了胀环扩径变形的力学模型。使用LS-DYNA有限元软件,通过引入虚拟接触面的方法,采用壳单元建立了胀环式缓冲器的有限元模型。通过静态压缩试验和动态冲击试验结果,验证了两种仿真模型的有效性。该模型可以进一步应用于缓冲器参数优化设计研究,建模方法对于同类研究具有重要参考价值。; In order to optimize design parameters of a seat-bumper in a spacecraft, it was necessary to develop a numerical model for an expanding-tube bumper. The formula of the axial force of the expanding tube was deduced on the basis of plastic mechanics theory. The finite element model of the seat-bumper was developed by introducing the virtual contact surface with LS-DYNA software. These two simulation models were validated by comparing the simulation and test results under static and dynamic loads. These two models could be used for optimization design of bumper parameters. The method of developing numerical models was a reference for other related studies. |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/36498]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 马春生,张金换,杜汇良,等. 胀环式飞船座椅缓冲器建模方法研究[J],2010, 2010. |
| APA | 马春生.,张金换.,杜汇良.,黄世霖.,MA Chun-sheng.,...&HUANG Shi-lin.(2010).胀环式飞船座椅缓冲器建模方法研究.. |
| MLA | 马春生,et al."胀环式飞船座椅缓冲器建模方法研究".(2010). |
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