【摘要】 介绍了柴油机性能故障的仿真模型和６２６０ Ｚ Ｃ柴油机１５ 种典型故障的仿真计算结果。通过对相同故障下热工参数的相对偏差分析和相同热工参数不同故障的绝对偏差分析，研究了热工参数对故障的敏感性和故障对热工参数的影响。对各种故障下热力参数的主成因分析，揭示了柴油机性能故障与热力参数之间的内在联系，提出了热力特征参量的优化选择方法和性能故障的分类方法，可以为人工神经网络的诊断应用提供训练学习样本。更多还原

【Abstract】 This paper introduces the simulation models and simulated results of 15 typical performance faults of diesel engines.Through relative deviation analysis on different working parameters of some a fault and absolute analysis on some a working parameter of different faults,this paper studies the working parameters sensitivity to faults and faults influence on working parameters.By multivariate analysis on thermodynamic parameters of 15 kinds of performance faults this paper reveals the relationship between performance faults and thermodynamic parameters and puts forward the methods for optimal selection of symptomic thermodynamic parameters and classification of performance faults which can supply training samples for the application of artificial neural network in diesel engine fault diagnosis.更多还原