BLISS研究及其在飞机设计中的应用

研究了两级综合系统分析(BLISS)多学科设计优化方法的结构,通过精心设计的数学算例来测试其效率,并将其应用于某通用航空飞机的总体参数优化问题中,结果与不分解优化的结果非常接近,验证了BLISS方法在飞机多学科设计优化中的有效性。最后,对BLISS方法的收敛性和效率进行了总结和评价,并指出了其需要改进的地方。

Research of BLISS and Its Application in Aircraft Design

The structure of Bi-Level Integrated System Synthesis(BLISS),a multidisciplinary design optimization method,is researched and its effectiveness is tested by a mathematical example designed elaborately.It is applied in a utility aircraft population parameters optimization and the result of BLISS extremely approximate to the result of Allin-one,so BLISS is available in aircraft multidisciplinary design optimization.Finally,conclusion and estimation about the convergence and effectiveness of BLISS are made,and its deficiencies to be rectified are pointed out,such as a tendency apt to converge to local optimization and unsatisfactory convergent effectiveness when the design point is near optimization.