CAJ | 학술논문

船用气囊的发展实践领先于理论研究，气囊安全性问题越来越得到各方的重视。船用气囊在承受船体载荷时表现出物理和几何的双重非线性，因此，相关理论研究一直是一个难点。文中基于船用气囊囊体材料的单轴拉伸实验，结合有限元方法对气囊进行建模分析，确定了 Yeoh 超弹性模型为合适的超弹性本构模型，并建立了船用气囊的三维模型，对某典型承压气囊不同初始内压的刚度进行了数值分析。与实验比较，结果一致。该超弹性有限元模型可准确预报承压气囊的刚度特性，具有较强的理论及实用价值。
선용기낭적발전실천령선우이론연구，기낭안전성문제월래월득도각방적중시。선용기낭재승수선체재하시표현출물리화궤하적쌍중비선성，인차，상관이론연구일직시일개난점。문중기우선용기낭낭체재료적단축랍신실험，결합유한원방법대기낭진행건모분석，학정료 Yeoh 초탄성모형위합괄적초탄성본구모형，병건립료선용기낭적삼유모형，대모전형승압기낭불동초시내압적강도진행료수치분석。여실험비교，결과일치。해초탄성유한원모형가준학예보승압기낭적강도특성，구유교강적이론급실용개치。
Ship airbag applications are ahead of the theoretical research. Its safety gains more and more attention from all parties. Due to its strong nonlinearity both physically and geometrically,it is always a difficulty for relat-ed research. This paper uses both experimental approach and finite element analysis for the uniaxial tension test to choose proper hyperelastic models for the airbag. The Yeoh model has been proven to be the suitable model. Consequently,a 3D ship airbag model has been built and the stiffnesses have been computed with various initial inner air pressure. The results are in good agreement with test data,indicating that the model is correct and can be used in further research.