| 船舶下水用气囊的非线性分析 |
| Nonlinear Analysis of Air-bag for Ship Launching |
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| DOI： |
| 中文关键词: 气囊 非线性 船舶下水 有限元分析 |
| 英文关键词: air-bag nonlinearity ship launching finite element analysis |
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| 中文摘要: |
| 对船舶下水用气囊的材料、几何和接触等非线性特性进行分析，并采用非线性有限元分析软件MSC.Marc对其进行数值模拟，研究气囊内压和外载荷与气囊压缩高度的关系。与试验结果对比表明，本研究方法具有较高的精度。另外，还分析了气囊帘线和橡胶层的应力分布，为气囊设计提供了依据。 |
| 英文摘要: |
| The nonlinearity of the material，geometry and contact condition of air-bag used for ship launching was analyzed.Numerical simulation was carried out to analyze the relationship between inner and outer stress of the air-bag and compressive displacement by using the commercial nonlinear finite element analysis software MSC.Marc.The comparison between simulation and experiment results indicated that the method had high precision.The stress distribution of cord and rubber was also analyzed，which provided the basis for air-bag design. |
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