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V&V(Verification and Validation),即模型验证与确认,是一种量化复杂数值模拟结果置信度的系统方法.大规模的数值模拟往往不能确保高置信度,数值模拟结果的置信度需要一种严格量化的方法.对于有限元模拟问题,获得近似解后,如果直接对这个解进行误差分析,可以得到一个整体的误差估计.而对于以有限元模拟为辅助手段的设计改进而言,通常都有特别关心的专门设计量,所有的模拟实验过程都是为检验这个量而服务的.面向目标的误差估计方法就是专门针对如何准确和经济地估算特定值误差的一种方法.本文通过线性化简后,把这种估计方法针对有限元模拟成功实现,为在实际工程应用中数值实现这种最接近于解决实际问题的方法作了准备.
Verification and Validation (V & V) is a systematic method to quantify the confidence of complex numerical simulation results, which often fail to ensure high confidence and the confidence of numerical simulation results requires a rigorous quantification For finite element simulation problems, an approximate error solution can be obtained if the solution is approximated by an error analysis, whereas for design improvements aided by finite element simulations, there are usually special All the simulation experiments serve to test this quantity.Output-oriented error estimation method is a method that is specifically aimed at how to estimate the error of a specific value accurately and economically.Through the simplification of linearization , This method of estimation is successfully implemented for finite element simulation, which is the most suitable method to solve practical problems in practical application.