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| Fast Estimation Model of Manufacturing Cost of Composites Stiffened Panel |
| LÜ Yi1，ZHANG Wei2 |
（1. School of Aerocraft Engineering, Xi’an Aeronautical University, Xi’an 710077, China;
2. Key Laboratory of Science and Technology on UAV, Northwestern Polytechnical University, Xi’an 710072, China） |
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Abstract In order to quickly estimate the manufacturing cost of composites stiffened panel in the early stage of design,
a manufacturing cost estimation model based on the weight of designed structure is proposed in this paper. The key of
the model is that considered the reasonable value of material cost ratio coefficient, manufacturing process coefficient, skin
shape coefficient, stiffener shape coefficient, material utilization ratio coefficient are, et al. In a case study on the cost estimation
of a validated test part, the deviation between the estimated cost and actual manufacturing cost is 10.8%, the results
show that the current model can be used to estimate the manufacturing cost of composites stiffened panel, which can provide
the basis for decision making.
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2017, 
