Elastomers (Rubber and rubber-like materials) are widely utilized in many engineering applications due to their specific properties like high elasticity with good static and dynamic behaviors. Rubber blocks are one of the elastomeric components and it is employed in many applications such as vibration isolators, bumpers, shock absorbers, and dampers, etc. Most of the rubber blocks are cylindrical in shape and it can undergo large deformation under different loadings and contact conditions (fixed-fixed, friction-friction and fixed-friction). In this present work, experimentally validated Ogden hyper-elastic material model is adopted in the finite element analysis (FEA). The FE model is validated with other published experimental work. In addition, the following six boundary conditions namely BC1 (Fixed – Fixed), BC2 (Fixed – Friction), BC3 (Friction – Friction), BC4 (Fixed – Cap), BC5 (Cap – Friction) and BC6 (Cap – Cap) boundary conditions are taken for comparative study. The aspect ratio (radius/height) of the rubber isolator also varied as 0.5, 0.75, and 1. From the numerical analysis carried out, it is found that the BC6 (Cap–Cap) with aspect ratio 1 showed better compressive modulus coefficient over other parameters taken for study.

中文翻译：

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不同边界条件对键合和非键合圆柱隔振器压缩模量系数影响的数值研究

弹性体（橡胶和类橡胶材料）由于其特殊的特性（例如高弹性以及良好的静态和动态行为）而广泛用于许多工程应用中。橡胶块是弹性体组件之一，可用于振动隔离器，保险杠，减震器和减震器等许多应用。大多数橡胶块为圆柱形，在不同的载荷和接触下会发生较大的变形条件（固定-固定，摩擦摩擦和固定摩擦）。在本工作中，有限元分析（FEA）中采用了经过实验验证的Ogden超弹性材料模型。FE模型已通过其他已发表的实验工作进行了验证。此外，以下六个边界条件是BC1（固定-固定），BC2（固定-摩擦），BC3（摩擦-摩擦），BC4（固定-上限），BC5（上限-摩擦）和BC6（上限-上限）边界条件用于比较研究。橡胶隔离器的长宽比（半径/高度）也分别为0.5、0.75和1。根据进行的数值分析，发现长宽比为1的BC6（Cap-Cap）显示出更好的压缩模量系数。用于研究的其他参数。