| 外压作用下球壳阀芯失稳的有限元模拟和实验研究 |
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| 引用本文： | 王新云,吴洪飞,王仲仁. 外压作用下球壳阀芯失稳的有限元模拟和实验研究[J]. 锻压技术, 2002, 27(3): 34-37 |
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| 作者姓名： | 王新云 吴洪飞 王仲仁 |
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| 作者单位： | 哈尔滨工业大学,150001;哈尔滨工业大学,150001;哈尔滨工业大学,150001 |
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| 摘 要： | 为了能随一定的外部压力并很好地实现密封，设计并采用粘性介质压力成形工艺制造了不锈钢壳阀芯。采用有限元软件FEMB／Ls-dyna3d模拟分析了球壳的临界失稳压力，并进行了理论计算和试验研究。结果表明，有限元模拟结果与试验结果比较一致，而经典线弹性理论值则过于偏高。在有限元模拟的指导下研制的厚度当量为1．07mm的球壳安全满足密封和耐压要求。
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| 关 键 词： | 球壳阀芯 外压 有限元模拟 |
FE simulation and experiment research on spherical shell spool buckling under external pressure |
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| Harbin Institute of Technology Wang Xinyun Wu Hongfei Wang Zhongren. FE simulation and experiment research on spherical shell spool buckling under external pressure[J]. Forging & Stamping Technology, 2002, 27(3): 34-37 |
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| Authors: | Harbin Institute of Technology Wang Xinyun Wu Hongfei Wang Zhongren |
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| Affiliation: | Harbin Institute of Technology Wang Xinyun Wu Hongfei Wang Zhongren |
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| Abstract: | In order to endure certain external pressure and seal well, the stainless steel spherical shell is designed and manufactured. The finite|element based code FEMB/Ls|dyna3d is used to simulate the critical buckling pressure of spherical shell,then the theoretical calculation and the experiment investigation are performed. It shows that the simulation data are in good agreement with the experiment results, and the value of theoretical calculation is great higher than that of the experiment. Under the guidance of FE simulation, the spherical shell with equivalent thickness 1 07mm is produced. And it meets the requirement of sealing and anti|external pressure entirely. |
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| Keywords: | Spherical shell spool External pressure FE simulation |
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