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激波风洞高低压段钢膜片破裂特性研究

聂少军 汪运鹏 薛晓鹏 姜宗林

聂少军, 汪运鹏, 薛晓鹏, 姜宗林. 激波风洞高低压段钢膜片破裂特性研究[J]. 力学学报, 2021, 53(6): 1747-1757. doi: 10.6052/0459-1879-20-341
引用本文: 聂少军, 汪运鹏, 薛晓鹏, 姜宗林. 激波风洞高低压段钢膜片破裂特性研究[J]. 力学学报, 2021, 53(6): 1747-1757. doi: 10.6052/0459-1879-20-341
Nie Shaojun, Wang Yunpeng, Xue Xiaopeng, Jiang Zonglin. RESEARCH ON RUPTURE CHARACTERISTICS OF STEEL DIAPHRAGM BETWEEN HIGH AND LOW PRESURE SECTION IN SHOCK TUNNEL[J]. Chinese Journal of Theoretical and Applied Mechanics, 2021, 53(6): 1747-1757. doi: 10.6052/0459-1879-20-341
Citation: Nie Shaojun, Wang Yunpeng, Xue Xiaopeng, Jiang Zonglin. RESEARCH ON RUPTURE CHARACTERISTICS OF STEEL DIAPHRAGM BETWEEN HIGH AND LOW PRESURE SECTION IN SHOCK TUNNEL[J]. Chinese Journal of Theoretical and Applied Mechanics, 2021, 53(6): 1747-1757. doi: 10.6052/0459-1879-20-341

激波风洞高低压段钢膜片破裂特性研究

doi: 10.6052/0459-1879-20-341
基金项目: 1)国家自然科学基金资助项目(11672357)
详细信息
    作者简介:

    2)汪运鹏, 副研究员, 主要研究方向: 激波风洞测力试验与风洞天平技术. E-mail: wangyunpeng@imech.ac.cn

    通讯作者:

    汪运鹏

  • 中图分类号: V211.751

RESEARCH ON RUPTURE CHARACTERISTICS OF STEEL DIAPHRAGM BETWEEN HIGH AND LOW PRESURE SECTION IN SHOCK TUNNEL

  • 摘要: 激波风洞是用于高超声速飞行器气动外形设计和优化的常用地面试验装置,基于爆轰驱动技术,激波风洞能够在短时间(毫秒级)内产生高温、高压的驱动气体来模拟高超声速试验气流.主膜片位于激波风洞中的爆轰驱动段和激波管段之间,试验时膜片在爆轰脉冲压力下打开,膜片的打开状态和脱落情况对激波风洞气流品质有很大的影响. 同时,膜片也是形成激波的先决条件. 传统的风洞采用铝质膜片进行试验,在激波风洞中需要承压能力更强的膜片, 此时铝质膜片不再适用, 需要采用钢质膜片.因此, 对激波风洞中的钢膜片破裂特性进行研究很有必要.将数值计算结果与试验结果进行比较, 发现数值计算结果与试验结果吻合得比较理想,计算结果具有可靠性. 基于膜片的应力-应变模型, 建立了膜片打开的动力学模型,根据CJ爆轰理论, 采用有限元软件计算模拟了膜片破裂的过程,分析总结了膜片破裂的机制和力学特性规律.采用控制变量法对不同厚度和凹槽长度的膜片进行分析研究,得到了膜片破膜压力和有效破膜时间的变化规律. 在激波风洞试验中,根据膜片总破膜时间设计了适用于JF-12复现风洞的膜片参数.

     

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  • 收稿日期:  2020-09-27
  • 刊出日期:  2021-06-01

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