@article {Wang:2017:0736-2935:702,
title = "Gasoline Turbo-Boosted Direct Injection Engine Calibration Impact on Tail Pipe Acoustics Utilizing Design for Six Sigma",
journal = "INTER-NOISE and NOISE-CON Congress and Conference Proceedings",
parent_itemid = "infobike://ince/incecp",
publishercode ="ince",
year = "2017",
volume = "254",
number = "2",
publication date ="2017-11-10T00:00:00",
pages = "702-709",
itemtype = "ARTICLE",
issn = "0736-2935",
url = "https://ince.publisher.ingentaconnect.com/content/ince/incecp/2017/00000254/00000002/art00086",
author = "Wang, Yuntian and Sobecki, Brandon and Hua, Xin",
abstract = "An accurate acoustic source is critical for the acoustical design and development of automotive exhaust systems. The need for fewer numbers of prototype iterations and shorter development times require more accurate engine models. An engine, as a time-invariant acoustic source, is usually
very complicated with many factors and parameters that may affect engine exhaust noise and the resulting tailpipe noise. The acoustic impact of these engine calibration changes is not well understood. In this paper, a method to evaluate the impact of a gasoline turbo-boosted direct injection
engine calibration change on the engine acoustical performance is described. Using the Design of Experiments methodology, it is found that exhaust valve closing (EVC) timing, turbine map change, exhaust valve lift (EVL), and compressor efficiency can largely change the engine exhaust noise
while maintaining the brake torque output. In this research, GT-power is used as the simulation tool and a Design for Six Sigma approach is applied.",
}