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CLC number: TK421.6

On-line Access: 2017-07-04

Received: 2016-01-15

Revision Accepted: 2016-11-09

Crosschecked: 2017-06-16

Cited: 0

Clicked: 1700

Citations:  Bibtex RefMan EndNote GB/T7714

 ORCID:

Wen-yun He

http://orcid.org/0000-0001-7085-0199

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Journal of Zhejiang University SCIENCE A 2017 Vol.18 No.7 P.531-544

http://doi.org/10.1631/jzus.A1600025


A comprehensive evaluation method of diesel engine sound quality based on paired comparison, uniform design sampling, and improved analytic hierarchy process


Author(s):  Wen-yun He, Jun-hong Zhang, Jian Wang

Affiliation(s):  State Key Laboratory of Engines, Tianjin University, Tianjin 300072, China

Corresponding email(s):   zhangjh@tju.edu.cn

Key Words:  Sound quality, Comprehensive evaluation, Diesel engine, Paired comparison (PC), Uniform design sampling (UDS), Analytic hierarchy process (AHP)


Wen-yun He, Jun-hong Zhang, Jian Wang. A comprehensive evaluation method of diesel engine sound quality based on paired comparison, uniform design sampling, and improved analytic hierarchy process[J]. Journal of Zhejiang University Science A, 2017, 18(7): 531-544.

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Abstract: 
The paired comparison (PC) is an easy and effective way to distinguish the nuances among sound stimuli of diesel engine in sound quality subjective evaluation. However, the PC method is inefficient for the subjective evaluation of large quantities of stimulus or to rank the results of overall perception of sound stimuli. To overcome the shortcoming of the PC method, this paper presents a comprehensive evaluation method of diesel engine sound quality based on the PC method, uniform design sampling (UDS), and the improved analytic hierarchy process (AHP). An hierarchical tree of comprehensive evaluation models of diesel engine sound quality is constructed and simplified through UDS to ensure that the sound sample size is in the application range of the PC method or the grouped paired-wise comparison (GPC) method. An improved AHP is developed by introducing a new method calculating the relative weight based on evaluators’ preference order instead of the traditional 1–9 scale method, which reduces subjective liberty and difficulty of the consistency of the judgment matrix meeting the requirement, and the requirements of evaluators’ specialized knowledge. With three diesel engines’ noise stimuli as example, a realization of sound quality comprehensive evaluation based on UDS-AHP method with the GPC method is introduced. The results show that the proposed subjective comprehensive evaluation method can accurately provide the ranks of the sound stimuli over all subjective perception with a significant decrease of the evaluation workload.

基于PC,UDS和改进AHP的柴油机噪声品质综合评价方法

目的: 提出柴油机噪声品质综合评价方法,解决产品总体噪声品质择优排序问题。
创新点: 在噪声品质综合评价模型的研究中,将均匀设计抽样与层次分析法相结合,提出一种考虑多因素、多水平的噪声品质主观综合评价GPC-UDS-AHP方法,通过对少量的声样本进行主观评价得到声品质综合评价结果;提出基于偏好序和Bradley-Terry模型的权重计算方法,避免了1-9标度法主观性强和一致性难以满足要求的问题。
方法: 针对传统的成对比较法难以在声品质主观评价试验中获得评价对象整体感受择优排序的不足,结合均设计抽样法"均匀分散"的特点,提出一种基于分组成对比较法的柴油机声品质主观综合评价方法,确定适合于柴油机声品质主观评价的结构及层次划分,提出基于偏好序和Bradley-Terry模型的各级指标权重计算方法。以采集到的某3款柴油机共375个噪声样本为评价对象,分别利用该方法和等级评分法计算得出3款柴油机的声品质评价综合值。
结论:提出的柴油机声品质主观综合评价GPC-UDS-AHP方法可在有效地维持成对比较主观评价试验实施范围的情况下,准确地得到柴油机声品质整体主观感受评价得分的择优排序,可用于实施不同柴油机或N次改进试验的声品质比较和评判。

关键词:柴油机;声品质;均匀设计抽样;成对比较法;层次分析法

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