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针对解析目标分流(analytical target cascading,ATC)与协同优化(collaborative optimization,CO)方法对比及ATC方法在卫星多学科设计优化(MDO)中的应用等问题,研究ATC与CO方法的原理差异;将其应用到两个数学解析算例,通过对比ATC与CO方法在优化过程中系统、子系统问题以及全部问题所需的函数运算次数,可以看出ATC方法可以大大减少子系统问题函数运算次数,计算效率较高。采用ATC方法求解某观测卫星MDO问题得到合理结果,表明了ATC方法的有效性,可为同类航天器MDO问题求解提供参考。
The principle differences between ATC and CO methods are studied for the problems of analytical target cascading (ATC) and collaborative optimization (CO) methods and the application of ATC methods in satellite multidisciplinary design optimization (MDO) It is applied to two examples of mathematical analysis. By comparing the number of function operations required by ATC and CO methods in system optimization, subsystem problems and all the problems, it can be seen that the ATC method can greatly reduce the number of subsystem problem function operations, Calculation efficiency is higher. The ATC method is used to solve the MDO problem of a certain observing satellite, which shows the validity of the ATC method. It can provide a reference for solving the MDO problem of the same kind of spacecraft.