基于“效重比”的机载火控雷达研制费估算

机载电子设备研制费的估算是飞机费用预测的一大难题。近年来出现的基于设备静态效能的统计方法,将机载电子设备众多的特征参数综合成一个静态效能指数,并利用该指数和设备的重量(体积)、可靠性指标等参数进行统计分析。但是在实际应用中,常用的效能评估方法考虑因素不全面,且受主观性影响较大;同时,电子设备的效能指数和重量一般都表现出较强的相关性,不能并列作为费用估算变量。为此,在提出能力综合评估法代替常用的效能指数法的基础上,采用"效重比"作为一个综合性参数的思想,建立了基于"效重比"的机载火控雷达研制费用估算模型;并通过机载火控雷达研制费用的估算实例验证了模型的可用性。

Research on Airborne Radar Development Cost Parameters Estimation Method Based on Effectiveness/Weight Ratio

The development cost estimation of airborne electronic equipment is a big challenge in aircraft cost prediction. The statistics method based on static effectiveness synthesizes the characteristic parameters into one static effectiveness index, along with equipment weight and reliability indexes to count and analyze. But in the actual application, the method frequently used is not comprehensive, and can be influenced by subjectivity; moreover, the electronic equipment’s effectiveness index and weight shows a strong correlation, so they can’t be used as estimate parameters simultaneously. Therefore, based on the presentation of synthesized capability evaluation method to replace the effectiveness assessment method, the Airborne Radar Development Cost Parameters Estimation Model is established on the base of“effectiveness/weight ratio”;the usability is verified through calculation example.