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Design evaluation of multi-station assembly processes by using state space approach
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Ding, Yu, Ceglarek, Darek and Shi, Jianjun (2002) Design evaluation of multi-station assembly processes by using state space approach. Journal of Mechanical Design, Vol.124 (No.3). pp. 408-418. doi:10.1115/1.1485744
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Official URL: http://dx.doi.org/10.1115/1.1485744
Abstract
This paper considers the problem of evaluating and benchmarking process design configuration in a multi-station assembly process. We focus on the unique challenges brought by the multi-station system, namely, (1) a system level model to characterize the variation propagation in the entire process, and (2) the necessity to describe the system response to variation inputs at both global (system level) and local (station level and single fixture level) scales. State space representation is employed to recursively describe the propagation of variation in such a multi-station process, incorporating process design information such as fixture locating layout at individual stations and station-to-station locating layout change. Following the sensitivity analysis in control theory, a group of hierarchical sensitivity indices is defined and expressed in terms of the system matrices in the state space model, which are determined by the given process design configuration. Implication of these indices with respect to variation control is discussed and a three-step procedure of applying the sensitivity indices for selecting a better design and prioritizing the critical station/fixture is presented. We illustrate the proposed method using the group of sensitivity indices in design evaluation of the assembly process of an SUV (Sport Utility Vehicle) side panel.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Divisions: | Faculty of Science > WMG (Formerly the Warwick Manufacturing Group) | ||||
| Journal or Publication Title: | Journal of Mechanical Design | ||||
| Publisher: | ASME International | ||||
| ISSN: | 1050-0472 | ||||
| Official Date: | September 2002 | ||||
| Dates: |
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| Volume: | Vol.124 | ||||
| Number: | No.3 | ||||
| Page Range: | pp. 408-418 | ||||
| DOI: | 10.1115/1.1485744 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access |
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