柴油机涡轮增压方案的评选模型及其计算

The Evaluation and Calculation of the Fuzzy Degree of Correlation for the Turbocharged System of a Diesel Engine

基于模糊集理论和灰色关联分析，建立了柴油机涡轮增压系统的模糊关联度评选模型，该模型仿照人们评选柴油机涡轮增压系统性能优劣的过程，并考虑到评选过程中的模糊性，在单个评估指标的模糊评估基础上，利用灰色关联分析，综合分析与评估柴油机涡轮增压系统性能的优劣。示例说明应用这种评选新方法的具体步骤和需注意的问题，计算表明新方法是可行的。

Based on the fuzzy set theory and grey correlational analysis,a model for evaluating thefuzzy degree of correlation for the turbocharged system of a diesel engine is developed.Thismodel imitates the way of assessment of a human being on the performance of the tur-bocharged system with the fuzziness taken into account.With a single index as the basis offuzzy evaluation,an overall analysis and evaluation for the turbocharged system are made bymeans of a grey correlational analysis.Evaluation procedures and precautions are given. Cal-culation results show that the method proposed is feasible.