基于熵权模糊综合评价法的水润滑尾轴承性能评估

为合理评估水润滑尾轴承的性能，提出了基于熵权模糊综合评价法的水润滑尾轴承性能评估模型。从摩擦、磨损、减振、摩擦噪声性能4个维度选取6个关键参数建立评价体系，构建专家偏好系数选择模型，并基于该系数对经过Kendall协同系数检验的主观权重和客观权重进行线性加权组合得到综合权重，选取合适隶属度函数求解模糊评价矩阵，在综合权重和模糊评价矩阵的基础上获得评估结果。研究结果表明：该评价方法不仅考虑了专家偏好主观性，还考虑了数据客观性，可实现对所有水润滑尾轴承的相对优劣评估，且该评价方法具有较广泛的适用性。

Performance Evaluation of Water Lubricated Stern Bearings Based on Entropy Weight Fuzzy Comprehensive Evaluation Method

In order to evaluate the performances of water lubricated stern bearings reasonably, a performance evaluation model of water lubricated stern bearings was proposed based on entropy weight fuzzy comprehensive evaluation method.Six key parameters were selected from four dimensions of friction performance, wear performance, vibration reduction performance and frictional noise performance to establish the evaluation system.The selection model of expert preference coefficients was constructed and the synthetic weights were obtained based on the coefficients by linear weighting combination of subjective weights and objective weights tested by Kendall synergy coefficients.The appropriate membership function was selected to solve the fuzzy evaluation matrix, and the evaluation results were obtained on the basis of comprehensive weight and fuzzy evaluation matrix.The results show that the evaluation method considers the subjectivity of expert preference, and considers the objectivity of data.It may evaluate the relative superiority of all water lubricated stern bearings and the evaluation method has wide applications.