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A New Method of Comprehensive Evaluation Research and Application on Vehicle Engine Exhaust System
Technical Paper
2018-01-5011
ISSN: 0148-7191, e-ISSN: 2688-3627
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Event:
Automotive Technical Papers
Language:
English
Abstract
During current design process of vehicle engine exhaust system, the frequently-used approach mainly concerns an individual component, which usually results in not meeting the overall design requirements or unreasonable design parameters. Here a concept of comprehensive evaluation metrics for vehicle engine exhaust system was established, of which a new weight factor assignment method was proposed, named change rate method, as the core of evaluation system to be especially studied. Taking muffler as an instance, six weight factor assignment schemes were adopted to compare with each other. And the rationality and practicability of the change rate assignment method was verified by the muffler noise experiments. The results show that, the change rate method makes the weight assignment more scientific and rigorous. And the new method can reflect the wishes of designers and completely displays the performance comparison and evaluation between schemes. Finally the performance of re-designed muffler was improved on basis of the comprehensive evaluation.
Authors
Citation
Gao, G., Ni, J., Shi, X., Xu, X. et al., "A New Method of Comprehensive Evaluation Research and Application on Vehicle Engine Exhaust System," SAE Technical Paper 2018-01-5011, 2018, https://doi.org/10.4271/2018-01-5011.Data Sets - Support Documents
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References
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