基于六西格玛设计及改进遗传算法的直升机优化设计

本文研究了六西格玛设计方法和改进的遗传算法,并应用该设计方法对直升机总体参数进行了优化设计。采用优化设计后获得的直升机设计方案,由于受许多不确定性因素的影响,最后付诸实现时并不能保证得到像预先优化设计方案那样的结果。在改进的遗传算法实现最优化设计的同时进行六西格玛设计,可提高优化设计结果的可靠性和鲁棒性。本文以CH-47D纵列式直升机为优化算例,优化效果良好,结果可靠,表明本文方法切实可行。

Helicopter Design Optimization Based on DFSS and Improved GA

The paper presents the method with DFSS and improved genetic algorithm for helicopter design optimization.The design project of the helicopter that adopted design optimization can't accomplish anticipative result successfully because of some uncertain factors in the engineering practice.It may increase the reliability and the robust of the result if DFSS and improved genetic algorithm are applied together.As a design example,the method is applied for the general parameters design of CH-47D tandem helicopter with twin rotors.The result indicates that the method is feasible and efficient.