橡胶隔膜蓄能器有限元强度分析（英文）

Strength analysis with FEA method on rubber diaphragm accumulator

橡胶隔膜破坏是隔膜蓄能器最主要的失效形式。基于气体式蓄能器隔膜腔的工作原理,建立其轴对称结构有限元模型,其中橡胶隔膜材料采用Ogden本构模型,蓄能器中的气体采用ABAQUS中的流体单元进行模拟。通过隐式非线性有限元分析,计算出最大气体压力时蓄能器的应力分布情况,可为橡胶隔膜设计提供参考。

Rubber diaphragm failure is the main failure mode of the diaphragm accumulator. Based on the working principle of diaphragm chamber of gas accumulator, the axisymmetric finite element model is established, in which the rubber diaphragm material by Ogden constitutive model, and the gas in the accumulator using the fluid element in ABAQUS to simulate. Calculating the stress distribution under the maximum gas pressure through the implicit nonlinear finite element analysis, so as to guide reasonable diaphragm design.