复合材料加筋壁板制造成本的快速估算模型

为了能够在设计阶段早期对复合材料加筋壁板制造成本进行快速估算,提出了一种以结构设计重量为主要驱动因素的制造成本估算模型。该模型的关键是考虑了诸如材料成本比重系数、制造工艺系数、蒙皮形状系数、筋条形状系数、材料利用率系数等合理取值。以某验证试验的试验件制造成本估算为例,估算成本与实际制造成本的偏差为10.8%,说明了采用该方法对复合材料加筋壁板制造成本进行快速估算的结果是可以为设计人员提供决策依据的。

Fast Estimation Model of Manufacturing Cost of Composites Stiffened Panel

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.