航天推进技术研究院主办
[1]霍世慧,许红卫,朱卫平,等.增强S形波纹管内压稳定性分析方法[J].火箭推进,2022,48(04):66-71.
HUO Shihui,XU Hongwei,ZHU Weiping,et al.Buckling of the reinforced S-shaped bellows under internal pressure[J].Journal of Rocket Propulsion,2022,48(04):66-71.
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HUO Shihui,XU Hongwei,ZHU Weiping,et al.Buckling of the reinforced S-shaped bellows under internal pressure[J].Journal of Rocket Propulsion,2022,48(04):66-71.
增强S形波纹管内压稳定性分析方法
《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]
卷:
48
期数:
2022年04期
页码:
66-71
栏目:
目次
出版日期:
2022-08-21
- Title:
- Buckling of the reinforced S-shaped bellows under internal pressure
- 文章编号:
- 1672-9374(2022)04-0066-06
- 分类号:
- V475
- 文献标志码:
- A
- 摘要:
- 针对增强S形波纹管,结合理论分析与数值仿真分析方法,给出内压稳定性的分析方法。首先基于数值分析方法获得波纹管轴向刚度,由最小轴向刚度确定结构弯曲刚度。然后,基于内压作用下薄壁圆柱壳轴线控制方程和弯曲过程波纹管结构几何关系,获得摇摆过程边界影响系数的选取方法。最后,基于Euler公式并参考EJMA规范,给出增强S形波纹管稳定性临界内压分析方法,方法综合考虑材料弹塑性、内压和边界影响系数等因素,较真实反映波纹管实际情况,能够较好地应用于增强S形波纹管结构稳定性分析。
- Abstract:
- In the present study, the analysis method of critical pressure of reinforced s-shaped bellows was carried out based on the theoretical and numerical simulation analysis.Firstly, the axial stiffness of reinforced s-shaped bellows was obtained based on the finite element method.The bending stiffness of bellows was obtained according to the minimal axial stiffness.Then, boundary influence coefficient of bellows was analyzed based on axial control equation of thin walled cylinder under the inner pressure.At last, the analysis method of critical load of reinforced S-shaped bellows was put forward based on Euler equation and EJMA, which takes plasticity, inner pressure and boundary condition into account and actually reflects the bellows condition.It can be well used in the buckling analysis of reinforced S-shaped bellows.
参考文献/References:
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备注/Memo
收稿日期:2021-12-03 修回日期:2022-02-09
基金项目:国家自然科学基金(52005385) 陕西省自然科学基础研究计划(2021JQ-848)
作者简介:霍世慧(1985—),男,博士,高级工程师,研究领域为液体火箭发动机结构强度、动力学特性分析与评估。
更新日期/Last Update:
1900-01-01