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首页> 外文期刊>International journal of mechanics and materials in design >Structural analysis of an elastomeric bellow seal in unsteady conditions: simulations and experiments
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Structural analysis of an elastomeric bellow seal in unsteady conditions: simulations and experiments

机译：非稳态条件下弹性体波纹管密封的结构分析：模拟和实验

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摘要

The present work describes a study carried out to characterize the constitutive and operating behavior of a rubber membrane, to be used as an air-oil separator in vibration dampers of helicopter rotor blades. The membrane is mounted inside the main damper tube through a manual reversal movement, has to withstand a differential pressure and elongation/shortening cycles without tearing, while complying with the dimensions allowed by the damper structure. FE analyses were used extensively, taking into account large displacements, as well as the hyperelastic, viscoelastic and pseudo-elastic characteristics of the rubber material. Material models were properly tuned relying on experimental evidence. The mechanical behavior of the membrane was simulated, starting from the very first loading cycles up to the assigned service life. Additionally, membrane samples and a damper mock-up were used to conduct several experimental tests, in the attempt to reproduce the mounting and operation phases of the component. A detailed comparison between experimental and numerical results, for validation purposes, yielded in all cases a good level of agreement.
机译：本工作描述了一项表征橡胶膜的组成和工作性能的研究，该橡胶膜将用作直升机旋翼桨叶减振器中的气油分离器。膜片通过手动反向运动安装在主阻尼器管内部，必须承受差压和伸长/缩短周期而不会撕裂，同时要符合阻尼器结构允许的尺寸。考虑到大位移以及橡胶材料的超弹性，粘弹性和拟弹性特征，广泛使用了有限元分析。根据实验证据对材料模型进行了适当的调整。从最初的加载循环到指定的使用寿命，对膜的机械行为进行了模拟。另外，膜样品和阻尼器模型被用来进行一些实验测试，以试图重现组件的安装和操作阶段。在所有情况下，出于验证目的，对实验结果和数值结果进行详细的比较，可以得出很好的一致性。

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    Sasso M.; Chiappini G.; Rossi M.; Mancini E.; Cortese L.; Amodio D.;

  • 作者单位

    Univ Politecn Marche, Dipartimento Ingn Ind & Sci Matemat, Via Brecce Bianche, I-60131 Ancona, Italy;

    Univ Politecn Marche, Dipartimento Ingn Ind & Sci Matemat, Via Brecce Bianche, I-60131 Ancona, Italy;

    Univ Politecn Marche, Dipartimento Ingn Ind & Sci Matemat, Via Brecce Bianche, I-60131 Ancona, Italy;

    Univ eCampus, Via Isimbardi 10, I-22060 Novedrate, CO, Italy;

    Free Univ Bolzano Bozen, Fac Sci & Technol, Piazza Univ 5, I-39100 Bolzano, Italy;

    Univ Politecn Marche, Dipartimento Ingn Ind & Sci Matemat, Via Brecce Bianche, I-60131 Ancona, Italy;

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  • 正文语种 eng
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  • 关键词

    Rubber membrane; Viscoelasticity; Hyperelasticity; Mullins effect;

    机译：橡胶膜;粘弹性;超弹性;莫林效应;

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