应用非平衡统计力学方法的产品性能评价

Product Performance Evaluation Using Non-equilibrium Statistical Mechanics Method

为了从系统演化的角度来研究产品性能评价问题,在建模的过程中引入非平衡统计力学方法,该方法已成功应用于环境领域中复杂生态系统的分析。以反映产品性能的各个指标所构成的系统为研究对象,基于非平衡统计力学方法建立系统随机演化方程,通过给各指标赋予合理的权值使系统趋于稳定,从而实现对产品性能的评价。新模型揭示出性能等级的形成模式和演化动力学规律,进而使用该模型结合自组织特征映射网络的算法提出具体的评价方法,并以实例证明该方法的有效性。应用此方法进行产品性能评价,不受人为加权等因素的影响,具有广泛的适应性。该评价模型还提供对指标体系结构以及指标间关系的分析途径,可进一步应用于产品性能优化的研究。

To study the problem of product performance evaluation from the perspective of system evolution,the non-equilibrium statistical mechanics method is introduced in the modeling process,which is successfully used to analyze the complex ecosystem in environmental field.The system constituted of indexes which reflect the product performance is taken as study object.The stochastic evolution equation of the system is set up on the basis of non-equilibrium statistical mechanics method,and the product performance evaluation is realized by conferring reasonable weight to the indexes to make the system become stable.The formation pattern of performance level and the dynamics law of evolution are revealed by the new model.Then,a specific evaluation method is presented by the combination of this model and self-organization feature map algorithm,and the effectiveness of this evaluation method is confirmed by examples in the end.Using this method to evaluate the product performance can exclude the effects of factors such as man-made weighting,and its has wide adaptability.This model also provides an approach to analyzing the index system architecture and the relationship between indexes,and can be further applied to the research on performance optimization of products..