A New Method of Comprehensive Evaluation Research and Application on Vehicle Engine Exhaust System Tongji University

Format:

Conference/Event

Author/Creator:

Gao, Gao, author.

Contributor:

Jiaqi, Li

Ni, Jimin

Shi, Xiuyong

Xu, Xiaochuan

Conference Name:

Automotive Technical Papers (2017-12-28 : Warrendale, Pennsylvania, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2018

Summary:

AbstractDuring 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

Notes:

Vendor supplied data

Publisher Number:

2018-01-5011

Access Restriction:

Restricted for use by site license