Minimum risk execution plan for conceptual design process of utility helicopter: a WTM-based method

Developing aerospace products in the shortest possible time is one of the most important market competitive parameters. Meanwhile, inherent complexity of these products leads to large information cycles that increase completion time, significantly. As a result, the shortest completion time beside acceptable quality becomes an inevitable necessity. In this paper, “Minimum-Risk Execution Plan (MREP)” is used to improve the conceptual design process of EH101 utility helicopter as the case study. The plan is formed around iteration management and reducing completion time in framework of Work Transformation Matrix (WTM). MREP is a work policy based on beginning with tasks with the highest couplings and by progressing the design process, adding the others in a gradual manner. The method can be described as the art of effective arrangement of design tasks while observing rework risk. Discrete-time simulation results show the supremacy of the proposed method over existing models in regard of completion time while the rework risk is maintained in the lowest possible level.