Robust Design of a Catalytic Converter with Material and Manufacturing Variations Principal, Advanced Engineering Solutions, LLC

Format:

Conference/Event

Author/Creator:

Vlahinos, A. (Andreas), author.

Conference Name:

SAE Powertrain & Fluid Systems Conference & Exhibition (2002-10-21 : San Diego, California, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2002

Summary:

A design is robust when the performance targets have been achieved and the effects of variation have been minimized without eliminating the causes of the variation such as manufacturing tolerances, material properties, environmental temperature, humidity, operational wear et cetera In recent years several robust design concepts have been introduced in an effort to obtain optimum designs and minimize the variation in the product characteristics [1,2]. In this study, a probabilistic design analysis was performed on a catalytic converter substrate in order to determine the required manufacturing tolerance that results in a robust design. Variation in circularity (roundness) and the ultimate shear stress of the substrate material were considered. The required manufacturing tolerance for a robust design with 1,2 and 3 sigma quality levels was determined. The same manufacturing tolerance for a reliability based design with reliability levels of 85%, 90% and 95% was also determined and compared. The methodology for implementing robust design used in this research effort is summarized in a reusable workflow diagram

Notes:

Vendor supplied data

Publisher Number:

2002-01-2888

Access Restriction:

Restricted for use by site license