The present paper deals with the reduction of the large stochastic finite element model with the reduction in its mechanical degrees of freedom. The procedure is based on the available reduction/condensation procedures. The response sensitivity is computed based on first and/second order sensitivities of eigensolution. The joint probability distribution of the response process is estimated using maximum entropy method. The response from the reduced FE model is compared with the response from full FE model. The analysis solution is validated with Monte Carlo Simulations.
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机译：本文通过减小机械自由度来解决大型随机有限元模型的问题。该程序基于可用的还原/冷凝程序。响应灵敏度是基于特征解的一阶和/或二阶灵敏度来计算的。使用最大熵方法估计响应过程的联合概率分布。将简化后的有限元模型的响应与完整有限元模型的响应进行比较。分析解决方案已通过Monte Carlo Simulations验证。
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