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DESIGN FOR MAINTAINABILITY WITH MODIFIEDPETRT NETS (MPNs): SHIPBOARD PROPULSION SYSTEM APPLICATION
| 题名： | DESIGN FOR MAINTAINABILITY WITH MODIFIEDPETRT NETS (MPNs): SHIPBOARD PROPULSION SYSTEM APPLICATION |
| 作者： | Azad Madni, Yee-yeen Chu, Denis Purcell,Mayer Brenner |
| 关键词： | Task Analysis ; Performance Evaluation; Modified Petri Nets; Man-Machine Interface; Design for Maintainability; Propulsion Systems Maintenance; Knowledge Representation; Workload Assessment Methods ., |
| 摘要： | Maintenance of complex systems such as ship propulsion/gas turbine plants poses serious human factors problems for the maintainers. Gas turbine plants typically require a team of maintainers to work with each other on different aspects of a common problem. This paper presents a model-based approach for identifying problem areas resulting from excessive workloads. and inadequate handling of contingency situations from a maintainability viewpoint. This approach relies on modelling human behavior (i.e., actions, decisions, responses to specific events )within Modified Petri-net representations.It is shown that within this framework, it is possible to (a) identify procedural inconsistencies and ambiguities that may impair human performance; b) explicitly model contingency handling procedures; (c) compute instantaneous and sustained task-related workload; and (d) develop guidelines for determining where aiding, automation or task reallocation may be warranted. The approach along with illustrative examples is presented within the context of a selected problan area associated with the maintainability of gas turbine propulsion systems. |
| 报告类型： | 科技报告 |
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