Dimensional variation in assembled products directly affects product performance. To reduce dimensional variation, it is necessary that an assembly be robust. A robust assembly is less sensitive to input variation from the product and process components, such as incoming parts, subassemblies, fixtures, and welding guns. In order to effectively understand the sensitivity of an assembly to input variation, an appropriate set of metrics must be defined. In this paper, three product-oriented indices, including pattern sensitivity index, component sensitivity index, and station sensitivity index, are defined. These indices can be utilized to measure the variation influence of a pattern, an individual part, and/or component, and components at a particular station to the dimensional quality of a final assembly. Additionally, the relationships among these sensitivity indices are established. Based on these relationships, the ranges of the sensitivity indices are derived. Finally, a case study of a sheet metal assembly is presented and discussed to illustrate the applicability of these metrics.
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August 2007
Research Papers
Product-Oriented Sensitivity Analysis for Multistation Compliant Assemblies
Jianpeng Yue,
Jianpeng Yue
Department of Mechanical Engineering,
The University of Michigan
, Ann Arbor, MI 48109
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Jaime A. Camelio,
Jaime A. Camelio
Department of Mechanical Engineering—Engineering Mechanics,
Michigan Technological University
, Houghton, MI 49931
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Melida Chin,
Melida Chin
Department of Mechanical Engineering,
The University of Michigan
, Ann Arbor, MI 48109
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Wayne Cai
Wayne Cai
Manufacturing Systems Research Lab,
GM R&D Center
, Warren, MI 48090
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Jianpeng Yue
Department of Mechanical Engineering,
The University of Michigan
, Ann Arbor, MI 48109
Jaime A. Camelio
Department of Mechanical Engineering—Engineering Mechanics,
Michigan Technological University
, Houghton, MI 49931
Melida Chin
Department of Mechanical Engineering,
The University of Michigan
, Ann Arbor, MI 48109
Wayne Cai
Manufacturing Systems Research Lab,
GM R&D Center
, Warren, MI 48090J. Mech. Des. Aug 2007, 129(8): 844-851 (8 pages)
Published Online: July 25, 2006
Article history
Received:
November 16, 2005
Revised:
July 25, 2006
Citation
Yue, J., Camelio, J. A., Chin, M., and Cai, W. (July 25, 2006). "Product-Oriented Sensitivity Analysis for Multistation Compliant Assemblies." ASME. J. Mech. Des. August 2007; 129(8): 844–851. https://doi.org/10.1115/1.2735341
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